2010 Buick Lucerne Electrical Switch & Relay Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

The 2010 Buick Lucerne has 201 electrical switch & relay parts with verified fitment on this page — 50 part types and 19 brands, covering both the 3.9L V6 and the 4.6L V8. Each part includes a manufacturer part number and application notes.

On the 2010 Buick Lucerne, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. Most of the listed parts are Power Seat Switch (22 parts), Oil Pressure Sender / Switch (11 parts) and Power Window Switch (10 parts). The other 47 part types cover the remaining 158 parts.

A/C Compressor Relay

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Popular Fits: all 2010 Lucerne engines RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
Clutch Cut-Off Relay
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FOUR SEASONS Fits: all 2010 Lucerne engines 36135
🇺🇸 US 🇨🇦 CA
Compressor Clutch Relay
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ROSTRA Fits: all 2010 Lucerne engines 600040
🇺🇸 US 🇨🇦 CA
Connector Shape: Square
Fitment notes — ROSTRA 600040
Connector Shape: Square
Cut-Out Relay
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UNITED MOTOR PRODUCTS Fits: all 2010 Lucerne engines RLY100
🇺🇸 US 🇨🇦 CA
Clutch Relay
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WELLS Fits: all 2010 Lucerne engines 1R3536
🇺🇸 US 🇨🇦 CA
Cut-Out Relay
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This table covers the relays that control the A/C Compressor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

A/C Pressure Safety Switch

Brand Part Number Markets Notes Buy
VEMO Fits: all 2010 Lucerne engines V40730008
🇺🇸 US 🇨🇦 CA
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This table covers the A/C Pressure Safety switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

A/C Refrigerant Pressure Switch

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: all 2010 Lucerne engines 1551343
🇺🇸 US 🇨🇦 CA
without Circuit
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FOUR SEASONS Fits: all 2010 Lucerne engines 20915
🇺🇸 US 🇨🇦 CA
Pressure Switch
Fitment notes — FOUR SEASONS 20915
Pressure Switch
Transducer
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GPD Fits: all 2010 Lucerne engines 1711513
🇺🇸 US 🇨🇦 CA
Pressure Transducer
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UAC Fits: all 2010 Lucerne engines SW10093C
🇺🇸 US 🇨🇦 CA
Pressure Transducer
Fitment notes — UAC SW10093C
Pressure Transducer
Transducer
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WELLS Fits: all 2010 Lucerne engines 1S8929
🇺🇸 US 🇨🇦 CA
Clutch Cycle and Fan ControlCut-Off
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This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

A/C System Relay

Brand Part Number Markets Notes Buy
UAC Fits: all 2010 Lucerne engines RE1014C
🇺🇸 US 🇨🇦 CA
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This table covers the relays that control the A/C System circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Accessory Delay Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2010 Lucerne engines 1581106
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 1581106
Black
Black5-TerminalSPDT 280 Mini, Hi/LowNot Shrouded
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GM GENUINE Fits: all 2010 Lucerne engines 13500114
🇺🇸 US 🇨🇦 CA
Gray35AMP
Fitment notes — GM GENUINE 13500114
Gray35AMP4-TerminalHigh Current Micro
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This table covers the relays that control the Accessory Delay circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Accessory Power Relay

Brand Part Number Markets Notes Buy
HELLA Fits: all 2010 Lucerne engines 933332571
🇺🇸 US 🇨🇦 CA
30 Amps4-Pin Connector
Fitment notes — HELLA 933332571
30 Amps4-Pin ConnectorColor: Black or Gray
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HELLA Fits: all 2010 Lucerne engines 933332541
🇺🇸 US 🇨🇦 CA
4-Pin ConnectorPlug: B
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HOLSTEIN Fits: all 2010 Lucerne engines 2RSW0042
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: all 2010 Lucerne engines RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
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This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

AIR / Smog Pump Relay

Brand Part Number Markets Notes Buy
HELLA Popular Fits: all 2010 Lucerne engines 933332531
🇺🇸 US 🇨🇦 CA
4-Pin ConnectorPlug: B
Fitment notes — HELLA 933332531
4-Pin ConnectorPlug: BColor: Black
PZEV California Emissions NU6
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STANDARD MOTOR PRODUCTS Popular Fits: all 2010 Lucerne engines RY255
🇺🇸 US 🇨🇦 CA
Amperage Rating: 70 AContinuous Duty: YES
Fitment notes — STANDARD MOTOR PRODUCTS RY255
Amperage Rating: 70 AContinuous Duty: YESFunctions: Multi-Function Relay
50 Amps
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GM GENUINE Fits: all 2010 Lucerne engines 13468936
🇺🇸 US 🇨🇦 CA
Gas
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ROSTRA Fits: all 2010 Lucerne engines 600132
🇺🇸 US 🇨🇦 CA
Black
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STANDARD MOTOR PRODUCTS Fits: all 2010 Lucerne engines RY1760
🇺🇸 US 🇨🇦 CA
Functions: Coolant Fan Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY1760
Functions: Coolant Fan Relay
50 Amps
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STANDARD MOTOR PRODUCTS Fits: all 2010 Lucerne engines RY1762
🇺🇸 US 🇨🇦 CA
30 Amps
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WELLS Fits: all 2010 Lucerne engines 1R3325
🇺🇸 US 🇨🇦 CA
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This table covers the relays that control the AIR / Smog Pump circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Air Injection Relay

Brand Part Number Markets Notes Buy
WELLS Fits: all 2010 Lucerne engines 1R3325
🇺🇸 US 🇨🇦 CA
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This table covers the relays that control the Air Injection circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Blower Motor Relay

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: all 2010 Lucerne engines 13503102
🇺🇸 US 🇨🇦 CA
SPST 280 MiniGray
Fitment notes — GM GENUINE 13503102
SPST 280 MiniGray4-WaySquare Casewith Resistor
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FOUR SEASONS Fits: all 2010 Lucerne engines 36010
🇺🇸 US 🇨🇦 CA
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HELLA Fits: all 2010 Lucerne engines 933332571
🇺🇸 US 🇨🇦 CA
30 Amps4-Pin Connector
Fitment notes — HELLA 933332571
30 Amps4-Pin ConnectorColor: Black or Gray
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ROSTRA Fits: all 2010 Lucerne engines 600060
🇺🇸 US 🇨🇦 CA
Amperage Rating: 30 Ampere
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STANDARD MOTOR PRODUCTS Fits: all 2010 Lucerne engines RY1757
🇺🇸 US 🇨🇦 CA
View on
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This table covers the relays that control the Blower Motor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Brake Light Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2010 Lucerne engines 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Black20AMP4-TerminalMultiuseSwitch Relay
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This table covers the relays that control the Brake Light circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Clutch Pedal Position Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2010 Lucerne engines 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Black20 Amp4-TerminalMultiuse
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This table covers the relays that control the Clutch Pedal Position circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Computer Control Relay

Brand Part Number Markets Notes Buy
ROSTRA Fits: all 2010 Lucerne engines 600060
🇺🇸 US 🇨🇦 CA
Amperage Rating: 30 Ampere
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STANDARD MOTOR PRODUCTS Fits: all 2010 Lucerne engines RY1757
🇺🇸 US 🇨🇦 CA
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This table covers the relays that control the Computer Control circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Cornering Lamp Relay

Brand Part Number Markets Notes Buy
HOLSTEIN Fits: 3.9L V6 2RSW0042
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
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This table covers the relays that control the Cornering Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Cruise Control Switch

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 15824107
🇺🇸 US 🇨🇦 CA
LeftTITANIUM
Fitment notes — GM GENUINE 15824107
LeftTITANIUMLeather Wrapped Steering Wheel (NP5),Interior Trim Color (83I)
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This table covers the Cruise Control switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Daytime Running Light Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Black20 Amp4-TerminalMultiuse
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HOLSTEIN Fits: 3.9L V6 2RSW0042
🇺🇸 US 🇨🇦 CA
View on
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
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WELLS Fits: 3.9L V6 1R2208
🇺🇸 US 🇨🇦 CA
Mounting Hardware Included: No
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This table covers the relays that control the Daytime Running Light circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Dimmer Switch

Brand Part Number Markets Notes Buy
ROSTRA Fits: 3.9L V6 640078
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 CBS1423
🇺🇸 US 🇨🇦 CA
without HEATED WINDSHIELD
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WELLS Fits: 3.9L V6 1S8338
🇺🇸 US 🇨🇦 CA
Indicator Markings Color: White
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This table covers the dimmer switches that select headlamp high and low beam. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Dome Light Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Black20 Amp4-TerminalMultiuse
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WELLS Fits: 3.9L V6 1R2208
🇺🇸 US 🇨🇦 CA
Mounting Hardware Included: No
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This table covers the relays that control the Dome Light circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Door Lock Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Rear20 Amp4-TerminalMultiuse
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GM GENUINE Fits: 3.9L V6 D1780C
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE D1780C
Black
35AMP5 TERMINALHIGH CURRENT MICRO 280
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WELLS Fits: 3.9L V6 1R2208
🇺🇸 US 🇨🇦 CA
Mounting Hardware Included: No
Fitment notes — WELLS 1R2208
Mounting Hardware Included: No
with 4 TerminalsSquare Type
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WELLS Fits: 3.9L V6 1R1059
🇺🇸 US 🇨🇦 CA
Mounting Hardware Included: NoVoltage: 12.0 VDC
Fitment notes — WELLS 1R1059
Mounting Hardware Included: NoVoltage: 12.0 VDC
with 5 TerminalsRectangular
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This table covers the relays that control the Door Lock circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Driving Light Relay

Brand Part Number Markets Notes Buy
HOLSTEIN Fits: 3.9L V6 2RSW0042
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
View on
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This table covers the relays that control the Driving Light circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Fog / Driving Lamp Relay

Brand Part Number Markets Notes Buy
HOLSTEIN Fits: 3.9L V6 2RSW0042
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
View on
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This table covers the relays that control the Fog / Driving Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Fog / Driving Lamp Switch

Brand Part Number Markets Notes Buy
WELLS Popular Fits: 3.9L V6 1S10156
🇺🇸 US 🇨🇦 CA
Blackwith Lane Departure Warning System
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WELLS Popular Fits: 3.9L V6 1S10145
🇺🇸 US 🇨🇦 CA
Blackwithout Lane Departure Warning System
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ROSTRA Fits: 3.9L V6 650872
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650872
with Lane Departure Warning Systemwith Fog LightsLight Beige
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ROSTRA Fits: 3.9L V6 650784
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650784
with Lane Departure Warning Systemwith Fog LightsTan
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ROSTRA Fits: 3.9L V6 650792
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650792
with Lane Departure Warning Systemwith Fog LightsGray
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ROSTRA Fits: 3.9L V6 650864
🇺🇸 US 🇨🇦 CA
with Fog Lightswithout Lane Departure Warning System
Fitment notes — ROSTRA 650864
with Fog Lightswithout Lane Departure Warning SystemTan
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ROSTRA Fits: 3.9L V6 650865
🇺🇸 US 🇨🇦 CA
with Fog Lightswithout Lane Departure Warning System
Fitment notes — ROSTRA 650865
with Fog Lightswithout Lane Departure Warning SystemGray
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ROSTRA Fits: 3.9L V6 651039
🇺🇸 US 🇨🇦 CA
with lane departure warning systemwith fog lights
Fitment notes — ROSTRA 651039
with lane departure warning systemwith fog lightsblack
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This table covers the Fog / Driving Lamp switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Fuel Pump / Circuit Opening Relay

Brand Part Number Markets Notes Buy
HELLA Popular Fits: 3.9L V6 933332571
🇺🇸 US 🇨🇦 CA
30 Amps4-Pin Connector
Fitment notes — HELLA 933332571
30 Amps4-Pin ConnectorColor: Black or Gray
View on
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STANDARD MOTOR PRODUCTS Popular Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
View on
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ROSTRA Fits: 3.9L V6 600072
🇺🇸 US 🇨🇦 CA
View on
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY517
🇺🇸 US 🇨🇦 CA
Functions: Relay
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ULTRA-POWER Fits: 3.9L V6 1R1595
🇺🇸 US 🇨🇦 CA
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WELLS Fits: 3.9L V6 1R1595
🇺🇸 US 🇨🇦 CA
View on
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This table covers the relays that control the Fuel Pump / Circuit Opening circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Headlamp Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 D1780C
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE D1780C
Black
Black35AMP5-Way, Hi-Power, with resistor, Unshrouded, Micro, Code 78665 TerminalHigh Current Micro 280
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HOLSTEIN Fits: 3.9L V6 2RSW0042
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
View on
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This table covers the relays that control the Headlamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Headlamp Switch

Brand Part Number Markets Notes Buy
WELLS Popular Fits: 3.9L V6 1S10156
🇺🇸 US 🇨🇦 CA
Blackwith Fog Lights
Fitment notes — WELLS 1S10156
Blackwith Fog Lightswith Lane Departure Warning System
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WELLS Popular Fits: 3.9L V6 1S10145
🇺🇸 US 🇨🇦 CA
Blackwith Fog Lights
Fitment notes — WELLS 1S10145
Blackwith Fog Lightswithout Lane Departure Warning System
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GM GENUINE Fits: 3.9L V6 25824869
🇺🇸 US 🇨🇦 CA
Interior Trim Color (40I)Except Lane Departure Warning Indicator (UFL)
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ROSTRA Fits: 3.9L V6 650872
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650872
with Lane Departure Warning Systemwith Fog LightsLight Beige
View on
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ROSTRA Fits: 3.9L V6 650784
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650784
with Lane Departure Warning Systemwith Fog LightsTan
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ROSTRA Fits: 3.9L V6 650792
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650792
with Lane Departure Warning Systemwith Fog LightsGray
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ROSTRA Fits: 3.9L V6 650864
🇺🇸 US 🇨🇦 CA
with Fog Lightswithout Lane Departure Warning System
Fitment notes — ROSTRA 650864
with Fog Lightswithout Lane Departure Warning SystemTan
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ROSTRA Fits: 3.9L V6 650865
🇺🇸 US 🇨🇦 CA
with Fog Lightswithout Lane Departure Warning System
Fitment notes — ROSTRA 650865
with Fog Lightswithout Lane Departure Warning SystemGray
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This table covers the column or dash switches that control the exterior lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Horn Relay

Brand Part Number Markets Notes Buy
HELLA Fits: 3.9L V6 933332571
🇺🇸 US 🇨🇦 CA
30 Amps4-Pin Connector
Fitment notes — HELLA 933332571
30 Amps4-Pin ConnectorColor: Black or Gray
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This table covers the relays that control the Horn circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Ignition Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Black20 Amp4-TerminalMultiuse
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HOLSTEIN Fits: 3.9L V6 2RSW0042
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
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This table covers the relays that control the Ignition circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Ignition Starter Switch

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 D1462F
🇺🇸 US 🇨🇦 CA
INCLUDES KEY ALARM SWITCH
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ROSTRA Fits: 3.9L V6 630031
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 US710
🇺🇸 US 🇨🇦 CA
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WELLS Fits: 3.9L V6 1S9705
🇺🇸 US 🇨🇦 CA
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This table covers the ignition switches that feed the starter circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Instrument Panel Dimmer Switch

Brand Part Number Markets Notes Buy
WELLS Popular Fits: 3.9L V6 1S10156
🇺🇸 US 🇨🇦 CA
Blackwith Fog Lights
Fitment notes — WELLS 1S10156
Blackwith Fog Lightswith Lane Departure Warning System
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WELLS Popular Fits: 3.9L V6 1S10145
🇺🇸 US 🇨🇦 CA
Blackwith Fog Lights
Fitment notes — WELLS 1S10145
Blackwith Fog Lightswithout Lane Departure Warning System
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ROSTRA Fits: 3.9L V6 650872
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650872
with Lane Departure Warning Systemwith Fog LightsLight Beige
View on
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ROSTRA Fits: 3.9L V6 650784
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650784
with Lane Departure Warning Systemwith Fog LightsTan
View on
Amazon
ROSTRA Fits: 3.9L V6 650792
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650792
with Lane Departure Warning Systemwith Fog LightsGray
View on
Amazon
ROSTRA Fits: 3.9L V6 650864
🇺🇸 US 🇨🇦 CA
with Fog Lightswithout Lane Departure Warning System
Fitment notes — ROSTRA 650864
with Fog Lightswithout Lane Departure Warning SystemTan
View on
Amazon
ROSTRA Fits: 3.9L V6 650865
🇺🇸 US 🇨🇦 CA
with Fog Lightswithout Lane Departure Warning System
Fitment notes — ROSTRA 650865
with Fog Lightswithout Lane Departure Warning SystemGray
View on
Amazon
ROSTRA Fits: 3.9L V6 651039
🇺🇸 US 🇨🇦 CA
with lane departure warning systemwith fog lights
Fitment notes — ROSTRA 651039
with lane departure warning systemwith fog lightsblack
View on
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This table covers the Instrument Panel Dimmer switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Neutral Safety Switch / Range Sensor

Brand Part Number Markets Notes Buy
ROSTRA Fits: 3.9L V6 670583
🇺🇸 US 🇨🇦 CA
View on
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 NS635
🇺🇸 US 🇨🇦 CA
View on
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WELLS Fits: 3.9L V6 1S12276
🇺🇸 US 🇨🇦 CA
View on
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This table covers the Neutral Safety Switch / Range sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.

Oil Pressure Sender / Switch

Economy

Brand Part Number Markets Notes Buy
DORMAN Fits: 3.9L V6 926553
🇺🇸 US 🇨🇦 CA
View on
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HOLSTEIN Fits: 3.9L V6 2OPS0057
🇺🇸 US 🇨🇦 CA
with Light
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 PS425T
🇺🇸 US 🇨🇦 CA
T-Series
View on
Amazon
UNITED MOTOR PRODUCTS Fits: 3.9L V6 OPS266
🇺🇸 US 🇨🇦 CA
with Light
View on
Amazon
VEMO Fits: 3.9L V6 V51720295
🇺🇸 US 🇨🇦 CA
View on
Amazon
WALKER PRODUCTS Fits: 3.9L V6 2561002
🇺🇸 US 🇨🇦 CA
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.9L V6 12674782
🇺🇸 US 🇨🇦 CA
View on
Amazon
ROSTRA Popular Fits: 3.9L V6 501203
🇺🇸 US 🇨🇦 CA
View on
Amazon
STANDARD MOTOR PRODUCTS Popular Fits: 3.9L V6 PS425
🇺🇸 US 🇨🇦 CA
View on
Amazon
GPD Fits: 3.9L V6 1815259
🇺🇸 US 🇨🇦 CA
with Light
View on
Amazon
WELLS Fits: 3.9L V6 1S8818
🇺🇸 US 🇨🇦 CA
with 14mm x 1-1/2 Threads
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This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.

Parking Lamp Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Black20 Amp4-TerminalMultiuse
View on
Amazon
HOLSTEIN Fits: 3.9L V6 2RSW0042
🇺🇸 US 🇨🇦 CA
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
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This table covers the relays that control the Parking Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Power Seat Switch

Economy

Brand Part Number Markets Notes Buy
SHEE-MAR Popular Fits: 3.9L V6 SM2136
🇺🇸 US 🇨🇦 CA
Front Leftwith 6 Way Power Seat
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SKP Popular Fits: 3.9L V6 SKPSW17
🇺🇸 US 🇨🇦 CA
Driver Side
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SKP Popular Fits: 3.9L V6 SKPSW148
🇺🇸 US 🇨🇦 CA
Fits Leftor with 8 Way Power Seats
View on
Amazon
AUTOTECNICA Fits: 3.9L V6 GM1323055
🇺🇸 US 🇨🇦 CA
Fits Front LeftSwitch Type: Rocker
Fitment notes — AUTOTECNICA GM1323055
Fits:
Front LeftSwitch Type: Rocker
or:
Front RightSwitch Type: Rocker
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DORMAN Fits: 3.9L V6 901256
🇺🇸 US 🇨🇦 CA
Fits Front Left6 Way Adjustment
Fitment notes — DORMAN 901256
Fits:
Front Left6 Way Adjustment
or:
Front Right6 Way Adjustment
View on
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DORMAN Fits: 3.9L V6 901272
🇺🇸 US 🇨🇦 CA
Front Right8 Way Adjustment
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SHEE-MAR Fits: 3.9L V6 SM2135
🇺🇸 US 🇨🇦 CA
Front Rightwith 8 Way Power Switch
View on
Amazon
SKP Fits: 3.9L V6 SKPSW151
🇺🇸 US 🇨🇦 CA
Fits Rightor with 8 Way Power Seats
View on
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VEMO Fits: 3.9L V6 V51730160
🇺🇸 US 🇨🇦 CA
6 Way
Fitment notes — VEMO V51730160
6 Way
Front Left
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VEMO Fits: 3.9L V6 V51730164
🇺🇸 US 🇨🇦 CA
8 Way
Fitment notes — VEMO V51730164
8 Way
Front Left
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VEMO Fits: 3.9L V6 V51730165
🇺🇸 US 🇨🇦 CA
8 Way
Fitment notes — VEMO V51730165
8 Way
Front Right
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
ROSTRA Popular Fits: 3.9L V6 660009
🇺🇸 US 🇨🇦 CA
Fits Leftwith 6-Way Power Seats
Fitment notes — ROSTRA 660009
Fits:
Leftwith 6-Way Power Seats
or:
Rightwith 6-Way Power Seats
View on
Amazon
ROSTRA Popular Fits: 3.9L V6 662583
🇺🇸 US 🇨🇦 CA
Leftwith 8-Way Power Seats
View on
Amazon
ROSTRA Fits: 3.9L V6 662582
🇺🇸 US 🇨🇦 CA
Rightwith 8-Way Power Seats
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 PSW17
🇺🇸 US 🇨🇦 CA
Front Leftwith 6 Way
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 PSW148
🇺🇸 US 🇨🇦 CA
Connector Shape: Rectangular
Fitment notes — STANDARD MOTOR PRODUCTS PSW148
Connector Shape: Rectangular
Front Leftwith 8 Way Power Seats
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 PSW149
🇺🇸 US 🇨🇦 CA
Connector Shape: Rectangle
Fitment notes — STANDARD MOTOR PRODUCTS PSW149
Connector Shape: Rectangle
Front Leftwith 8 Way Power Seats
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 PSW151
🇺🇸 US 🇨🇦 CA
with 8 Way Power SeatsRight
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WELLS Fits: 3.9L V6 1S12378
🇺🇸 US 🇨🇦 CA
Fits Front LeftBlack
Fitment notes — WELLS 1S12378
Fits:
Front LeftBlackLumbar Switch
or:
Front RightBlackLumbar Switch
View on
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WELLS Fits: 3.9L V6 1S7614
🇺🇸 US 🇨🇦 CA
Fits Front Leftwith 6 Way Power Seat
Fitment notes — WELLS 1S7614
Fits:
Front Leftwith 6 Way Power Seat
or:
Front Rightwith 6 Way Power Seat
View on
Amazon
WELLS Fits: 3.9L V6 1S12377
🇺🇸 US 🇨🇦 CA
Front Leftwith 8-Way Switch
View on
Amazon
WELLS Fits: 3.9L V6 1S12379
🇺🇸 US 🇨🇦 CA
Front Rightwith 8-Way Switch
View on
Amazon

This table covers the Power Seat switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Power Window Switch

Economy

Brand Part Number Markets Notes Buy
DORMAN Popular Fits: 3.9L V6 901149
🇺🇸 US 🇨🇦 CA
Fits Rear Left1 Button
Fitment notes — DORMAN 901149
Fits:
Rear Left1 Button
or:
Rear Right1 Button
View on
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AUTOTECNICA Fits: 3.9L V6 GM1322304
🇺🇸 US 🇨🇦 CA
Fits Rear LeftBlack
Fitment notes — AUTOTECNICA GM1322304
Fits:
Rear LeftBlackTerminal Type: Blade1 Button
or:
Rear RightBlackTerminal Type: Blade1 Button
View on
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SHEE-MAR Fits: 3.9L V6 SM1810
🇺🇸 US 🇨🇦 CA
Fits Rear Right
Fitment notes — SHEE-MAR SM1810
Fits:
Rear Right
or:
Rear Left
View on
Amazon
SKP Fits: 3.9L V6 SK901149
🇺🇸 US 🇨🇦 CA
Rear1 Button
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.9L V6 22895545
🇺🇸 US 🇨🇦 CA
Rearwith Backlighting and Graphics
View on
Amazon
ROSTRA Fits: 3.9L V6 660015
🇺🇸 US 🇨🇦 CA
Rear
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 DWS218
🇺🇸 US 🇨🇦 CA
Rear
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 DWS1628
🇺🇸 US 🇨🇦 CA
Front Left
View on
Amazon
WELLS Fits: 3.9L V6 1S12192
🇺🇸 US 🇨🇦 CA
Rear
View on
Amazon
WELLS Fits: 3.9L V6 1S13220
🇺🇸 US 🇨🇦 CA
Front Right
View on
Amazon

This table covers the switches that command each window motor. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Powertrain Control Module Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 1581106
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 1581106
Black
Black5-TerminalSPDT 280 Mini, Hi/LowNot Shrouded
View on
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GM GENUINE Fits: 3.9L V6 13500114
🇺🇸 US 🇨🇦 CA
Gray35AMP
Fitment notes — GM GENUINE 13500114
Gray35AMP4-TerminalHigh Current Micro
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HELLA Fits: 3.9L V6 933332541
🇺🇸 US 🇨🇦 CA
4-Pin ConnectorPlug: B
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This table covers the relays that control the Powertrain Control Module circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Radiator Fan Relay

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.9L V6 1581106
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 1581106
Black
5-TerminalSPDT 280 Mini, Hi/LowNot ShroudedMotor Relay
View on
Amazon
GM GENUINE Popular Fits: 3.9L V6 13500114
🇺🇸 US 🇨🇦 CA
Gray35AMP
Fitment notes — GM GENUINE 13500114
Gray35AMP4-TerminalHigh Current MicroMotor Relay
View on
Amazon
HELLA Fits: 3.9L V6 933332541
🇺🇸 US 🇨🇦 CA
4-Pin ConnectorPlug: B
Fitment notes — HELLA 933332541
4-Pin ConnectorPlug: B
Motor Relay
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY255
🇺🇸 US 🇨🇦 CA
Amperage Rating: 70 AContinuous Duty: YES
Fitment notes — STANDARD MOTOR PRODUCTS RY255
Amperage Rating: 70 AContinuous Duty: YESFunctions: Multi-Function Relay
Square Bodywith 4 Blade TerminalsMotor Relay
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY1760
🇺🇸 US 🇨🇦 CA
Functions: Coolant Fan Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY1760
Functions: Coolant Fan Relay
Square Bodywith 4 Blade TerminalsMotor Relay
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
Rectangularwith 4 Blade TerminalMotor Relay
View on
Amazon

This table covers the relays that control the Radiator Fan circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Seat Heater Switch

Brand Part Number Markets Notes Buy
WELLS Fits: 3.9L V6 1S12487
🇺🇸 US 🇨🇦 CA
Front Rightwith Heated Seats
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This table covers the Seat Heater switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Seat Lumbar Switch

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 84477509
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 84477509
Black
Fits:
Front LeftLeather Trim (194)
or:
Front RightLeather Trim (194)
View on
Amazon
ROSTRA Fits: 3.9L V6 662608
🇺🇸 US 🇨🇦 CA
FrontTitanium
View on
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ROSTRA Fits: 3.9L V6 662610
🇺🇸 US 🇨🇦 CA
FrontCashmere
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 PSW146
🇺🇸 US 🇨🇦 CA
Left and Right
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This table covers the Seat Lumbar switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Starter Motor Control Relay

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.9L V6 1581106
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 1581106
Black
Black5-TerminalSPDT 280 Mini, Hi/LowNot Shrouded
View on
Amazon
GM GENUINE Popular Fits: 3.9L V6 13500114
🇺🇸 US 🇨🇦 CA
Gray35AMP
Fitment notes — GM GENUINE 13500114
Gray35AMP4-TerminalHigh Current Micro
View on
Amazon
BOSCH Fits: 3.9L V6 0986AH0115
🇺🇸 US 🇨🇦 CA
Glow Plug Relay
View on
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HOLSTEIN Fits: 3.9L V6 2RSW1002
🇺🇸 US 🇨🇦 CA
View on
Amazon
ROSTRA Fits: 3.9L V6 600001
🇺🇸 US 🇨🇦 CA
Amperage Rating: 25 AmpereConnector Shape: Rectangle
Fitment notes — ROSTRA 600001
Amperage Rating: 25 AmpereConnector Shape: RectangleTerminal Type: Blade Pin
View on
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STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY601
🇺🇸 US 🇨🇦 CA
Functions: RelayMounting Hardware Included: No
Fitment notes — STANDARD MOTOR PRODUCTS RY601
Functions: RelayMounting Hardware Included: NoTerminal Quantity: 4
View on
Amazon
UNITED MOTOR PRODUCTS Fits: 3.9L V6 RLY100
🇺🇸 US 🇨🇦 CA
View on
Amazon
WELLS Fits: 3.9L V6 1R1056
🇺🇸 US 🇨🇦 CA
Amperage Rating: 25 AConnector Gender: Male
Fitment notes — WELLS 1R1056
Amperage Rating: 25 AConnector Gender: MaleMounting Hardware Included: No
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This table covers the relays that control the Starter Motor Control circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Sunroof / Sunshade Switch

Economy

Brand Part Number Markets Notes Buy
ULTRA-POWER Fits: 3.9L V6 1S12446
🇺🇸 US 🇨🇦 CA
Fits Cashmer
Fitment notes — ULTRA-POWER 1S12446
Fits:
Cashmer
or:
Electric Sunroof Switch
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
ROSTRA Fits: 3.9L V6 662645
🇺🇸 US 🇨🇦 CA
Cashmere
View on
Amazon

This table covers the Sunroof / Sunshade switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Tail Lamp Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Black20 Amp4-TerminalMultiuse
View on
Amazon
WELLS Fits: 3.9L V6 1R2208
🇺🇸 US 🇨🇦 CA
Mounting Hardware Included: No
View on
Amazon

This table covers the relays that control the Tail Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Transmission-Automatic Fluid Pressure Switch

Brand Part Number Markets Notes Buy
ROSTRA Fits: 3.9L V6 501337
🇺🇸 US 🇨🇦 CA
View on
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WELLS Fits: 3.9L V6 1S10175
🇺🇸 US 🇨🇦 CA
View on
Amazon

This table covers the Transmission-Automatic Fluid Pressure switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Transmission-Automatic Manual Shift Shaft Position Switch

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 24239970
🇺🇸 US 🇨🇦 CA
4 speed Automatic trans.
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This table covers the Transmission-Automatic Manual Shift Shaft Position switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Trunk Lid / Tailgate Release Switch

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.9L V6 D1411F
🇺🇸 US 🇨🇦 CA
ROUND SHAPEIndividual/Non-Bucket Front Seat (AN3), Custom Front Bucket Seat (A51)
View on
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WELLS Popular Fits: 3.9L V6 1S10145
🇺🇸 US 🇨🇦 CA
Blackwith Fog Lights
Fitment notes — WELLS 1S10145
Blackwith Fog Lightswithout Lane Departure Warning System
View on
Amazon
ROSTRA Fits: 3.9L V6 650872
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650872
with Lane Departure Warning Systemwith Fog LightsLight Beige
View on
Amazon
ROSTRA Fits: 3.9L V6 650784
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650784
with Lane Departure Warning Systemwith Fog LightsTan
View on
Amazon
ROSTRA Fits: 3.9L V6 650792
🇺🇸 US 🇨🇦 CA
with Lane Departure Warning Systemwith Fog Lights
Fitment notes — ROSTRA 650792
with Lane Departure Warning Systemwith Fog LightsGray
View on
Amazon
ROSTRA Fits: 3.9L V6 650864
🇺🇸 US 🇨🇦 CA
with Fog Lightswithout Lane Departure Warning System
Fitment notes — ROSTRA 650864
with Fog Lightswithout Lane Departure Warning SystemTan
View on
Amazon
ROSTRA Fits: 3.9L V6 650865
🇺🇸 US 🇨🇦 CA
with Fog Lightswithout Lane Departure Warning System
Fitment notes — ROSTRA 650865
with Fog Lightswithout Lane Departure Warning SystemGray
View on
Amazon
ROSTRA Fits: 3.9L V6 651039
🇺🇸 US 🇨🇦 CA
with lane departure warning systemwith fog lights
Fitment notes — ROSTRA 651039
with lane departure warning systemwith fog lightsblack
View on
Amazon
WELLS Fits: 3.9L V6 1S10156
🇺🇸 US 🇨🇦 CA
Blackwith Fog Lights
Fitment notes — WELLS 1S10156
Blackwith Fog Lightswith Lane Departure Warning System
View on
Amazon

This table covers the Trunk Lid / Tailgate Release switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Trunk Release Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Black20 Amp4-TerminalMultiuse
View on
Amazon
WELLS Fits: 3.9L V6 1R2208
🇺🇸 US 🇨🇦 CA
Mounting Hardware Included: No
View on
Amazon

This table covers the relays that control the Trunk Release circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Turn Signal Switch

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 D6279C
🇺🇸 US 🇨🇦 CA
View on
Amazon
ROSTRA Fits: 3.9L V6 640078
🇺🇸 US 🇨🇦 CA
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 CBS1423
🇺🇸 US 🇨🇦 CA
without HEATED WINDSHIELD
View on
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WELLS Fits: 3.9L V6 1S8338
🇺🇸 US 🇨🇦 CA
Indicator Markings Color: White
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Amazon

This table covers the combination / turn-signal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Vacuum Pump Relay

Brand Part Number Markets Notes Buy
ROSTRA Fits: 3.9L V6 600439
🇺🇸 US 🇨🇦 CA
View on
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WELLS Fits: 3.9L V6 1R3319
🇺🇸 US 🇨🇦 CA
View on
Amazon

This table covers the relays that control the Vacuum Pump circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Warning Light Relay

Brand Part Number Markets Notes Buy
HOLSTEIN Fits: 3.9L V6 2RSW0042
🇺🇸 US 🇨🇦 CA
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 RY862
🇺🇸 US 🇨🇦 CA
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY862
Amperage Rating: 20 AFunctions: Multi-Function RelayBlack
View on
Amazon

This table covers the relays that control the Warning Light circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Wiper / Washer Switch

Economy

Brand Part Number Markets Notes Buy
WAI GLOBAL Fits: 3.9L V6 372800
🇺🇸 US 🇨🇦 CA
Solvent Level Switch Kit
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
ROSTRA Fits: 3.9L V6 640078
🇺🇸 US 🇨🇦 CA
View on
Amazon
STANDARD MOTOR PRODUCTS Fits: 3.9L V6 CBS1423
🇺🇸 US 🇨🇦 CA
without HEATED WINDSHIELD
View on
Amazon
WELLS Fits: 3.9L V6 1S8338
🇺🇸 US 🇨🇦 CA
Indicator Markings Color: White
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This table covers the Wiper / Washer switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Wiper Motor Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 D1780C
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE D1780C
Black
BLACK35AMP5 TERMINALHIGH CURRENT MICRO 280
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This table covers the relays that control the Wiper Motor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Wiring Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.9L V6 13503102
🇺🇸 US 🇨🇦 CA
SPST 280 MiniGray
Fitment notes — GM GENUINE 13503102
SPST 280 MiniGray4-WaySquare Casewith Resistor
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GM GENUINE Fits: 3.9L V6 13500114
🇺🇸 US 🇨🇦 CA
Gray35AMP
Fitment notes — GM GENUINE 13500114
Gray35AMP4-TerminalHigh Current Micro
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GM GENUINE Fits: 3.9L V6 21997416
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 21997416
Black
SPST4-Terminal Space Saver Ultra Micro
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This table covers the relays that control the Wiring circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Buying Electrical Switch & Relay Parts for a 2010 Buick Lucerne

On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.

  • Match the engine first. Some electrical switch & relay parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Power Seat Switch and Oil Pressure Sender / Switch .

Frequently Asked Questions

How many electrical switch & relay parts fit the 2010 Buick Lucerne?

Our catalog currently lists 201 electrical switch & relay parts for the 2010 Buick Lucerne across 50 subcategories and 19 brands, covering both the 3.9L V6 and the 4.6L V8. Each part is matched to the engine(s) it fits.

Do electrical switch & relay parts differ between 2010 Buick Lucerne engines?

Some do. 35 parts fit every engine; the other 166 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of electrical switch & relay problems on a 2010 Buick Lucerne?

Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2010 Buick Lucerne was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2010 Buick Lucerne?

First match the engine — each row shows which engine(s) the part fits. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2010 Buick Lucerne

Electrical Switch & Relay Parts for Other Buick Lucerne Years

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.