2016 Buick Lacrosse Electrical Switch & Relay Parts

Engine:

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

167 Electrical switch & relay parts are listed for the 2016 Buick Lacrosse, in 33 part types, covering both the 2.4L L4 and the 3.6L V6. Each one has a brand, a manufacturer part number and notes that say where it fits.

On the 2016 Buick Lacrosse, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. 42 parts of the 167 listed are Radiator Fan Relay (19 parts), Headlamp Switch (12 parts) and Instrument Panel Dimmer Switch (11 parts). The other 30 part types cover the remaining 125 parts.

A/C Compressor Relay

Brand Part Number Markets Notes Buy
WELLS Popular Fits: 3.6L V6 1R1056
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 25 AConnector Gender: Male
Fitment notes — WELLS 1R1056
Amperage Rating: 25 AConnector Gender: MaleMounting Hardware Included: No
Clutch Relay
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FOUR SEASONS Fits: 3.6L V6 36008
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
4 PinCompressor Clutch Relay
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ROSTRA Fits: 3.6L V6 600060
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 30 Ampere
Fitment notes — ROSTRA 600060
Amperage Rating: 30 Ampere
Clutch Relay
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1757
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Compressor Clutch Relay
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ULTRA-POWER Fits: 3.6L V6 1R1056
🇺🇸 US 🇨🇦 CA
Air Conditioning Compressor Clutch RelayCLUTCH 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 Refrigerant Pressure Switch

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.6L V6 1551343
🇺🇸 US 🇨🇦 CA
without Circuit
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FOUR SEASONS Fits: 3.6L V6 20915
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Pressure Switch
Fitment notes — FOUR SEASONS 20915
Pressure Switch
Transducer
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GPD Fits: 3.6L V6 1711513
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Pressure Transducer
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UAC Fits: 3.6L V6 SW10093C
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Pressure Transducer
Fitment notes — UAC SW10093C
Pressure Transducer
Fits:
Transduceror GASTransduceror Base Model or Leather or PremiumTransducer
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WELLS Fits: 3.6L V6 1S8929
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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: 3.6L V6 RE1008C
🇺🇸 US 🇨🇦 CA
Fits FLEX FuelLeatheror GAS
Fitment notes — UAC RE1008C
Fits:
FLEX FuelLeatheror GASBase Model or Sport Touring
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UAC Fits: 3.6L V6 RE0959C
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Fits or FLEX FUELBase Modelor Base Model or Premiumor Leather or Premiumor Flex Fuel
Fitment notes — UAC RE0959C
Fits:
or FLEX FUELBase Modelor Base Model or Premiumor Leather or Premiumor Flex FuelSport Touringor GasLeather
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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: 3.6L 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 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
GM GENUINE Fits: 3.6L V6 13422668
🇺🇸 US 🇨🇦 CA
Gray4-Terminal
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HELLA Fits: 3.6L V6 933332571
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
30 Amps4-Pin Connector
Fitment notes — HELLA 933332571
30 Amps4-Pin ConnectorColor: Black or Gray
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HELLA Fits: 3.6L V6 933332541
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
4-Pin ConnectorPlug: B
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WELLS Fits: 3.6L V6 1R3344
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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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.

Blower Motor Relay

Brand Part Number Markets Notes Buy
BOSCH Fits: 3.6L V6 0986AH0115
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Glow Plug Relay
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GM GENUINE Fits: 3.6L V6 13500114
🇺🇸 US 🇨🇦 CA
Gray35AMP
Fitment notes — GM GENUINE 13500114
Gray35AMP4-TerminalHigh Current Micro
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HELLA Fits: 3.6L V6 933332571
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
30 Amps4-Pin Connector
Fitment notes — HELLA 933332571
30 Amps4-Pin ConnectorColor: Black or Gray
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WELLS Fits: 3.6L V6 1R1056
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 25 AConnector Gender: Male
Fitment notes — WELLS 1R1056
Amperage Rating: 25 AConnector Gender: MaleMounting Hardware Included: No
with 4 TerminalsRectangular
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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.

Computer Control Relay

Brand Part Number Markets Notes Buy
ROSTRA Fits: 3.6L V6 600060
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 30 Ampere
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1757
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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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.

Cruise Control Switch

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23154421
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 23154421
Black
Fits:
LeftPremiumExcept Forward Collision Alert (UEU)Cruise Control (K34), 4 Spokes Leather Steering Wheel (NR0), Heated Steering Wheel Switch (UVD), Remote Steering Wheel Radio Controls (W1Y), Interior Trim Color (4AA)
or:
LeftPremium or Sport TouringExcept Forward Collision Alert (UEU)Cruise Control (K34), 4 Spokes Leather Steering Wheel (NR0), Heated Steering Wheel Switch (UVD), Remote Steering Wheel Radio Controls (W1Y), Interior Trim Color (4AA), Interior Trim Color (4EP), Interior Trim Color (43N)
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 CCA1367
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Black
Fitment notes — STANDARD MOTOR PRODUCTS CCA1367
Black
with Heated Steering Wheelwith Collision Mitigation Braking Systemwith Adaptive Cruise Control
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WELLS Fits: 3.6L V6 1S15936
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Leftwith Collision Avoidance System
Fitment notes — WELLS 1S15936
Leftwith Collision Avoidance SystemBlack
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WELLS Fits: 3.6L V6 1S15940
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Leftwith Heated Steering Wheel
Fitment notes — WELLS 1S15940
Leftwith Heated Steering WheelBlack
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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.

Defroster Relay

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.6L V6 13500114
🇺🇸 US 🇨🇦 CA
Gray35AMP
Fitment notes — GM GENUINE 13500114
Gray35AMP4-TerminalHigh Current Micro
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ROSTRA Fits: 3.6L V6 600300
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: SquareTerminal Type: Blade
Fitment notes — ROSTRA 600300
Connector Shape: SquareTerminal Type: BladeRear
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY116T
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
T-SeriesConnector Shape: Square
Fitment notes — STANDARD MOTOR PRODUCTS RY116T
T-SeriesConnector Shape: SquareFunctions: Multi-Function RelayMounting Hardware Included: No
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY116
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Quantity: 1Mounting Bracket Included: No
Fitment notes — STANDARD MOTOR PRODUCTS RY116
Connector Quantity: 1Mounting Bracket Included: NoTerminal Gender: MaleTerminal Quantity: 5Terminal Type: Blade
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1957
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Terminal Gender: MaleMale
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This table covers the relays that control the Defroster 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

Economy

Brand Part Number Markets Notes Buy
SHEE-MAR Fits: 3.6L V6 SM1241
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Menu Button On StalkOE Switch
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Standard Replacement

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6 CBS1907
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Trip Odometer Switch
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 CBS2279
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
without Trip Odometer Switch
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WELLS Fits: 3.6L V6 1S11741
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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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.

Engine Control Module Relay

Brand Part Number Markets Notes Buy
ROSTRA Fits: 3.6L V6 600300
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: SquareTerminal Type: Blade
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY116T
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
T-SeriesConnector Shape: Square
Fitment notes — STANDARD MOTOR PRODUCTS RY116T
T-SeriesConnector Shape: SquareFunctions: Multi-Function RelayMounting Hardware Included: No
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY116
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Quantity: 1Mounting Bracket Included: No
Fitment notes — STANDARD MOTOR PRODUCTS RY116
Connector Quantity: 1Mounting Bracket Included: NoTerminal Gender: MaleTerminal Quantity: 5Terminal Type: Blade
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1957
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Terminal Gender: MaleMale
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This table covers the relays that control the Engine 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.

Fog / Driving Lamp Switch

Economy

Brand Part Number Markets Notes Buy
ULTRA-POWER Fits: 3.6L V6 1S12168
🇺🇸 US 🇨🇦 CA
Fog Lamp Switchwith Heads-up Display (HUD)
Fitment notes — ULTRA-POWER 1S12168
Fog Lamp Switchwith Heads-up Display (HUD)Natural or White
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ULTRA-POWER Fits: 3.6L V6 1S12174
🇺🇸 US 🇨🇦 CA
Fog Lamp Switchwith Heads-up Display (HUD)
Fitment notes — ULTRA-POWER 1S12174
Fog Lamp Switchwith Heads-up Display (HUD)Black
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Standard Replacement

Brand Part Number Markets Notes Buy
WELLS Popular Fits: 3.6L V6 1S12169
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Natural or Whitewithout Heads-Up Display (HUD)
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WELLS Popular Fits: 3.6L V6 1S12173
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Blackwithout Heads-Up Display (HUD)
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1613
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Heads-Up Display (HUD)with Automatic Headlights
Fitment notes — STANDARD MOTOR PRODUCTS HLS1613
with Heads-Up Display (HUD)with Automatic Headlightscolor code Cashmere
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1716
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Black
Fitment notes — STANDARD MOTOR PRODUCTS HLS1716
Black
Black SW.without Heads-Up Display (HUD)with Automatic Headlights
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1612
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Heads-Up Display (HUD)with Automatic Headlights
Fitment notes — STANDARD MOTOR PRODUCTS HLS1612
with Heads-Up Display (HUD)with Automatic Headlightstitanium
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WELLS Fits: 3.6L V6 1S12174
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Blackwith Heads-Up Display (HUD)
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WELLS Fits: 3.6L V6 1S12168
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Natural or Whitewith Heads-Up Display (HUD)
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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: 3.6L V6 933332571
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
30 Amps4-Pin Connector
Fitment notes — HELLA 933332571
30 Amps4-Pin ConnectorColor: Black or Gray
View on
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ROSTRA Fits: 3.6L V6 600060
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 30 Ampere
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1757
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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VEMO Fits: 3.6L V6 V30710036
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Fits Body code GM69
Fitment notes — VEMO V30710036
Fits:
Body code GM69
or:
Body code GT69
or:
Body code GB69
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WELLS Fits: 3.6L V6 1R3545
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Gender: MaleMounting Hardware Included: No
Fitment notes — WELLS 1R3545
Connector Gender: MaleMounting Hardware Included: NoTerminal Quantity: 4Voltage: 12.0 VDC
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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 Switch

Economy

Brand Part Number Markets Notes Buy
ULTRA-POWER Fits: 3.6L V6 1S12168
🇺🇸 US 🇨🇦 CA
with Heads-Up Display (HUD)Natural or White
Fitment notes — ULTRA-POWER 1S12168
with Heads-Up Display (HUD)Natural or Whitewith Fog Lights
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ULTRA-POWER Fits: 3.6L V6 1S12174
🇺🇸 US 🇨🇦 CA
with Heads-Up Display (HUD)Black
Fitment notes — ULTRA-POWER 1S12174
with Heads-Up Display (HUD)Blackwith Fog Lights
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Standard Replacement

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6 HLS1716
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Black
Fitment notes — STANDARD MOTOR PRODUCTS HLS1716
Black
without Heads-Up Display (HUD)with Fog Lights
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WELLS Popular Fits: 3.6L V6 1S12169
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Natural or Whitewith Fog Lights
Fitment notes — WELLS 1S12169
Natural or Whitewith Fog Lightswithout Heads-Up Display (HUD)
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WELLS Popular Fits: 3.6L V6 1S12173
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Blackwith Fog Lights
Fitment notes — WELLS 1S12173
Blackwith Fog Lightswithout Heads-Up Display (HUD)
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GM GENUINE Fits: 3.6L V6 09060242
🇺🇸 US 🇨🇦 CA
Except Front Fog Lamp (T3U), Head up Display (UV6)Auto On / Off Headlamps Control (T83), Interior Trim Color (4AA), Interior Trim Color (4EP), Interior Trim Color (43N)
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1613
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Heads-Up Display (HUD)color code Cashmere
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1614
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
without Head-Up Displaywithout Fog Lights
Fitment notes — STANDARD MOTOR PRODUCTS HLS1614
without Head-Up Displaywithout Fog Lightswith Auto Headlights
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1612
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with heads-up display (hud)with fog lights
Fitment notes — STANDARD MOTOR PRODUCTS HLS1612
with heads-up display (hud)with fog lightstitanium
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1422
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
without Heads-Up Display (HUD)without Fog Lights
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WELLS Fits: 3.6L V6 1S12174
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Blackwith Fog Lights
Fitment notes — WELLS 1S12174
Blackwith Fog Lightswith Heads-Up Display (HUD)
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WELLS Fits: 3.6L V6 1S12168
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Natural or Whitewith Fog Lights
Fitment notes — WELLS 1S12168
Natural or Whitewith Fog Lightswith Heads-Up Display (HUD)
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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.

Headlamp Washer Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 13598349
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13598349
Black
Black5-Terminal6.3mm Terminals,Mini ISO SPDT
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This table covers the relays that control the Headlamp Washer 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.

Horn Relay

Brand Part Number Markets Notes Buy
HELLA Popular Fits: 3.6L V6 933332571
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
30 Amps4-Pin Connector
Fitment notes — HELLA 933332571
30 Amps4-Pin ConnectorColor: Black or Gray
View on
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ROSTRA Fits: 3.6L V6 600060
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 30 Ampere
View on
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1757
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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ULTRA-POWER Fits: 3.6L V6 1R1056
🇺🇸 US 🇨🇦 CA
View on
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WELLS Fits: 3.6L V6 1R1056
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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 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
WELLS Popular Fits: 3.6L V6 1R1066
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with 5 Terminals
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ACDELCO Fits: 3.6L V6 F1757
🇺🇸 US 🇨🇦 CA
GoldVoltage: 12 VDC
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GM GENUINE Fits: 3.6L V6 13598349
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13598349
Black
5-Terminal6.3mm Terminals,Mini ISO SPDT
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ROSTRA Fits: 3.6L V6 600060
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 30 Ampere
View on
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1757
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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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

Economy

Brand Part Number Markets Notes Buy
AUTOTECNICA Popular Fits: 3.6L V6 GM1317188
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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VEMO Fits: 3.6L V6 V51800018
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Body code GB69
View on
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Standard Replacement

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6 US1032
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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GM GENUINE Fits: 3.6L V6 23276089
🇺🇸 US 🇨🇦 CA
Base ModelNO BACK LIGHT
View on
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GM GENUINE Fits: 3.6L V6 42742108
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 42742108
Black
Keyless Engine Start Switch (BTM), Interior Trim Color (4AA), Interior Trim Color (4EP), Interior Trim Color (43N)
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ROSTRA Fits: 3.6L V6 630079
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Column MountedKeyed Ignition Switch
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 US1357
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Black
Fitment notes — STANDARD MOTOR PRODUCTS US1357
Black
Dash Mountedwith Keyless Entry
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 US1354
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Dash Mountedwith Keyless Entry
Fitment notes — STANDARD MOTOR PRODUCTS US1354
Dash Mountedwith Keyless EntryBeige
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WELLS Fits: 3.6L V6 1S12007
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Mounting Type: Bolt On
Fitment notes — WELLS 1S12007
Mounting Type: Bolt On
with Column Mounted
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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 Cluster Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 39091599
🇺🇸 US 🇨🇦 CA
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This table covers the relays that control the Instrument Panel Cluster 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.

Instrument Panel Dimmer Switch

Economy

Brand Part Number Markets Notes Buy
ULTRA-POWER Fits: 3.6L V6 1S12168
🇺🇸 US 🇨🇦 CA
Panel Dimming Switchwith Heads-Up Display (HUD)
Fitment notes — ULTRA-POWER 1S12168
Panel Dimming Switchwith Heads-Up Display (HUD)Natural or Whitewith Fog Lights
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ULTRA-POWER Fits: 3.6L V6 1S12174
🇺🇸 US 🇨🇦 CA
Panel Dimming Switchwith Heads-Up Display (HUD)
Fitment notes — ULTRA-POWER 1S12174
Panel Dimming Switchwith Heads-Up Display (HUD)Blackwith Fog Lights
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Standard Replacement

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6 HLS1716
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Black
Fitment notes — STANDARD MOTOR PRODUCTS HLS1716
Black
Black SW.without Heads-Up Display (HUD)with Fog Lightswith Automatic Headlights
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WELLS Popular Fits: 3.6L V6 1S12169
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Natural or Whitewith Fog Lights
Fitment notes — WELLS 1S12169
Natural or Whitewith Fog Lightswithout Heads-Up Display (HUD)
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WELLS Popular Fits: 3.6L V6 1S12173
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Blackwith Fog Lights
Fitment notes — WELLS 1S12173
Blackwith Fog Lightswithout Heads-Up Display (HUD)
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1613
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Heads-Up Display (HUD)with Fog Lights
Fitment notes — STANDARD MOTOR PRODUCTS HLS1613
with Heads-Up Display (HUD)with Fog Lightswith Automatic Headlightscolor code Cashmere
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1614
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
without Head-Up Displaywithout Fog Lights
Fitment notes — STANDARD MOTOR PRODUCTS HLS1614
without Head-Up Displaywithout Fog Lightswith Automatic Headlights
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1612
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Heads-Up Display (HUD)with Fog Lights
Fitment notes — STANDARD MOTOR PRODUCTS HLS1612
with Heads-Up Display (HUD)with Fog Lightswith Automatic Headlightstitanium
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 HLS1422
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
without Heads-Up Display (HUD)without Fog Lights
Fitment notes — STANDARD MOTOR PRODUCTS HLS1422
without Heads-Up Display (HUD)without Fog Lightswith Automatic Headlights
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WELLS Fits: 3.6L V6 1S12174
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Blackwith Fog Lights
Fitment notes — WELLS 1S12174
Blackwith Fog Lightswith Heads-Up Display (HUD)
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WELLS Fits: 3.6L V6 1S12168
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Natural or Whitewith Fog Lights
Fitment notes — WELLS 1S12168
Natural or Whitewith Fog Lightswith Heads-Up Display (HUD)
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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

Economy

Brand Part Number Markets Notes Buy
DORMAN Popular Fits: 3.6L V6 511110
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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Standard Replacement

Brand Part Number Markets Notes Buy
ROSTRA Popular Fits: 3.6L V6 670597
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 NS624
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Cablewith Bracket
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 NS678
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
without Bracket
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VEMO Fits: 3.6L V6 V51730150
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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WELLS Fits: 3.6L V6 1S12274
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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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
ULTRA-POWER Popular Fits: 3.6L V6 PS310
🇺🇸 US 🇨🇦 CA
Fits Oil Pressure Sender or Switchwith Lightor Oil Pressure Sender or Switch
Fitment notes — ULTRA-POWER PS310
Fits:
Oil Pressure Sender or Switchwith Lightor Oil Pressure Sender or Switchwith Gauge
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AUTOTECNICA Fits: 3.6L V6 GM1317808
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Gender: MaleMaterial: Steel / Plastic
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HOLSTEIN Fits: 3.6L V6 2OPS0021
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Light
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 PS310T
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
T-Series
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UNITED MOTOR PRODUCTS Fits: 3.6L V6 OPS176
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Light
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VEMO Fits: 3.6L V6 V51730107
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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WALKER PRODUCTS Fits: 3.6L V6 2561045
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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Standard Replacement

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.6L V6 19436253
🇺🇸 US 🇨🇦 CA
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WELLS Popular Fits: 3.6L V6 1S6864
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Gender: Female
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GPD Fits: 3.6L V6 1815424
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Light
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 PS310
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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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 Brake Switch

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 39229532
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 39229532
Black
Fits:
PremiumReal Time Damping Chassis (F45), Front Console Rear 110 Volt Electrical Receptacle (KI6), LUXURY INTERIOR APPEARANCE Package (RLX), Interior Trim Color (4EP)
or:
PremiumKeyless Engine Start Switch (BTM), Real Time Damping Chassis (F45), Front Console Rear 110 Volt Electrical Receptacle (KI6), Interior Trim Color (43N)Exc. LUXURY INTERIOR APPEARANCE Package (RLX)
or:
PremiumKeyless Engine Start Switch (BTM), Real Time Damping Chassis (F45), Front Console Rear 110 Volt Electrical Receptacle (KI6), Interior Trim Color (4AA)Exc. LUXURY INTERIOR APPEARANCE Package (RLX)
or:
Base ModelInterior Trim Color (4AA)Except Keyless Engine Start Switch (BTM), Real Time Damping Chassis (F45), Front Console Rear 110 Volt Electrical Receptacle (KI6)
or:
PremiumKeyless Engine Start Switch (BTM), Front Console Rear 110 Volt Electrical Receptacle (KI6), Interior Trim Color (43N)Except Real Time Damping Chassis (F45), Luxury Interior Appearance Package (RLX)
or:
PremiumKeyless
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This table covers the Parking Brake 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.

Parking Lamp Relay

Brand Part Number Markets Notes Buy
ROSTRA Fits: 3.6L V6 600060
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 30 Ampere
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1757
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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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

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6 PSW149
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: Rectangle
Fitment notes — STANDARD MOTOR PRODUCTS PSW149
Connector Shape: Rectangle
without Headrest Monitorwith 8 Way Power SeatsLeft
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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
SHEE-MAR Popular Fits: 3.6L V6 SM1877
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Fits Rear LeftBlack
Fitment notes — SHEE-MAR SM1877
Fits:
Rear LeftBlack
or:
Rear RightBlack
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Standard Replacement

Brand Part Number Markets Notes Buy
WELLS Popular Fits: 3.6L V6 1S12396
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front LeftBlack
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ROSTRA Fits: 3.6L V6 660403
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front LeftBlack
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 DWS1274
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Black
Fitment notes — STANDARD MOTOR PRODUCTS DWS1274
Black
Rearwith 7 Terminal Connector
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 DWS1569
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front LeftSilver
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WELLS Fits: 3.6L V6 1S12395
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front RightBlack
Fitment notes — WELLS 1S12395
Front RightBlackwithout Memory Mirror
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WELLS Fits: 3.6L V6 1S12370
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
RearBlack
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WELLS Fits: 3.6L V6 1S12369
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front LeftArgent
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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
HELLA Fits: 3.6L V6 933332541
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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: 3.6L V6 13500113
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13500113
Black
Black20AMP4-TerminalMultiuseMotor Relay
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HELLA Popular Fits: 3.6L V6 933332571
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
30 Amps4-Pin Connector
Fitment notes — HELLA 933332571
30 Amps4-Pin ConnectorColor: Black or Gray
Motor Relay
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STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6 RY116T
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
T-SeriesConnector Shape: Square
Fitment notes — STANDARD MOTOR PRODUCTS RY116T
T-SeriesConnector Shape: SquareFunctions: Multi-Function RelayMounting Hardware Included: No
Square Bodywith 5 Blade TerminalMotor Relay
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STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6 RY116
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Quantity: 1Mounting Bracket Included: No
Fitment notes — STANDARD MOTOR PRODUCTS RY116
Connector Quantity: 1Mounting Bracket Included: NoTerminal Gender: MaleTerminal Quantity: 5Terminal Type: Blade
Square Bodywith 5 Blade TerminalMotor Relay
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FOUR SEASONS Fits: 3.6L V6 36008
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
4 Blade TerminalRectangular Shape
Fitment notes — FOUR SEASONS 36008
4 Blade TerminalRectangular ShapeMotor Relay
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FOUR SEASONS Fits: 3.6L V6 36146
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
4 Blade TerminalSquare Shape
Fitment notes — FOUR SEASONS 36146
4 Blade TerminalSquare ShapeMotor Relay
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GM GENUINE Fits: 3.6L V6 1551279
🇺🇸 US 🇨🇦 CA
Gray950 ISO Power Mini Relay
Fitment notes — GM GENUINE 1551279
Gray950 ISO Power Mini RelayMotor Relay
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GM GENUINE Fits: 3.6L V6 1551273
🇺🇸 US 🇨🇦 CA
280 Micro Relay For Dry Switch, SPSTMotor Relay
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HELLA Fits: 3.6L V6 933332581
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
5-Pin ConnectorColor: Black
Fitment notes — HELLA 933332581
5-Pin ConnectorColor: Black
Motor Relay
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HELLA Fits: 3.6L V6 933332541
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
4-Pin ConnectorPlug: B
Fitment notes — HELLA 933332541
4-Pin ConnectorPlug: B
Motor Relay
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ROSTRA Fits: 3.6L V6 600143
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Squarewith 4 Blade Terminals
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ROSTRA Fits: 3.6L V6 600245
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Rectangularwith 4 Blade Pin Terminals
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY255
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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: 3.6L V6 RY232
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 35 AConnector Gender: Male
Fitment notes — STANDARD MOTOR PRODUCTS RY232
Amperage Rating: 35 AConnector Gender: MaleFunctions: Multi-Function Relayblack
rectangularGraywith 5 Blade TerminalsMotor Relay
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1957
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Terminal Gender: MaleMale
Fitment notes — STANDARD MOTOR PRODUCTS RY1957
Terminal Gender: MaleMale
Square Bodywith 5 Blade TerminalMotor Relay
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1781
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Amperage Rating: 20 AFunctions: Multi-Function Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY1781
Amperage Rating: 20 AFunctions: Multi-Function Relay
Square Bodywith 4 Blade TerminalsMotor Relay
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY121
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Functions: Air Condition Control Relayblack
Fitment notes — STANDARD MOTOR PRODUCTS RY121
Functions: Air Condition Control Relayblack
with Rectangular Connectorwith 5 Blade TerminalsMotor Relay
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1761
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Rectangularwith 4 Blade Terminal
Fitment notes — STANDARD MOTOR PRODUCTS RY1761
Rectangularwith 4 Blade TerminalMotor Relay
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WELLS Fits: 3.6L V6 1R3308
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Motor Relay
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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
ULTRA-POWER Fits: 3.6L V6 PSW149
🇺🇸 US 🇨🇦 CA
Seat Control SwitchPower Seat Switch
Fitment notes — ULTRA-POWER PSW149
Seat Control SwitchPower Seat Switchwithout Headrest Monitorwith 8 Way Power SeatsLeft
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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.

Starter Motor Control Relay

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.6L V6 13500114
🇺🇸 US 🇨🇦 CA
Gray35AMP
Fitment notes — GM GENUINE 13500114
Gray35AMP4-TerminalHigh Current Micro
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STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6 RY302
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Functions: Multi-Function RelayTerminal Quantity: 4
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BOSCH Fits: 3.6L V6 0986AH0115
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Glow Plug Relay
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ROSTRA Fits: 3.6L V6 600420
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: Rectangle
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY302T
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
T-SeriesFunctions: Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY302T
T-SeriesFunctions: RelayTerminal Type: Blade Terminals
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1743
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: FlatFunctions: Relay
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY451
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: RectangularFunctions: Fog Lamp Relay
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 RY1799
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: SquareFunctions: Relay
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WELLS Fits: 3.6L V6 1R3344
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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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.

Trunk Release Relay

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 39091599
🇺🇸 US 🇨🇦 CA
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WELLS Fits: 3.6L V6 1R3432
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Mounting Hardware Included: No
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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

Economy

Brand Part Number Markets Notes Buy
SHEE-MAR Fits: 3.6L V6 SM1241
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Menu Button On StalkOE Switch
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Standard Replacement

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.6L V6 84514422
🇺🇸 US 🇨🇦 CA
Fits Base ModelJET BLACK
Fitment notes — GM GENUINE 84514422
Fits:
Base ModelJET BLACK
or:
PremiumJET BLACKCollision Imminent Brake Assist Sensor (UGN)
or:
PremiumJet BlackExcept Collision Imminent Brake Assist Sensor (UGN)
or:
Leather or Sport TouringJet BlackExcept Heated Steering Wheel Switch (UVD)
or:
Leather or Sport TouringKeyless Engine Start Switch (BTM), Heated Steering Wheel Switch (UVD)Jet Black
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 CBS1907
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with Trip Odometer Switch
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 CBS2279
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
without Trip Odometer Switch
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WELLS Fits: 3.6L V6 1S11741
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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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.

Wiper / Washer Switch

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 84489119
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 84489119
Black
Use with Mating Conn with Leads 13576541
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 WP587
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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WELLS Fits: 3.6L V6 1S12175
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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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.

Buying Electrical Switch & Relay Parts for a 2016 Buick Lacrosse

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. Every electrical switch & relay part here is 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: Radiator Fan Relay and Headlamp Switch .

Frequently Asked Questions

How many electrical switch & relay parts fit the 2016 Buick Lacrosse?

Our catalog currently lists 167 electrical switch & relay parts for the 2016 Buick Lacrosse across 33 subcategories and 18 brands, covering both the 2.4L L4 and the 3.6L V6. Each part is matched to the engine(s) it fits.

Do electrical switch & relay parts differ between 2016 Buick Lacrosse engines?

Yes. Every electrical switch & relay part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 2016 Buick Lacrosse?

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 2016 Buick Lacrosse 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 2016 Buick Lacrosse?

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 2016 Buick Lacrosse

Electrical Switch & Relay Parts for Other Buick Lacrosse Years

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