63 Electrical switch & relay parts are listed for the 2021 Buick Encore, in 31 part types, covering all 3 engine options (1.2L L3 Turbocharged, 1.3L L3 Turbocharged and 1.4L L4 Turbocharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
The switch and relay system on the 2021 Buick Encore covers the switches, relays and flashers that route power to everything the driver touches. The largest groups are Power Seat Switch (7 parts), Oil Pressure Sender / Switch (6 parts) and Power Window Switch (5 parts). The other 28 part types cover the remaining 45 parts.
The 2021 Buick Encore was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
13 brands supply electrical switch & relay parts for the 2021 Buick Encore, led by GM GENUINE (31 parts), STANDARD MOTOR PRODUCTS (9 parts) and WELLS (8 parts), plus 10 more brands. Quality grades include Economy and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Buick Encore. 6 parts have it, including STANDARD MOTOR PRODUCTS PS623 (Oil Pressure Sender / Switch) and AUTOTECNICA GM1322316 (Power Seat Switch). Each part number opens a page with every vehicle that part fits.
A/C Compressor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13598344 | 🇺🇸 US 🇨🇦 CA | Grey 20AMPControl Relay | View on Amazon |
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.
One part is listed for the 2021 Buick Encore — GM GENUINE 13598344.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Fits: 1.3L L3 Turbocharged | 20915 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Switch | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 1551388 | 🇺🇸 US 🇨🇦 CA | Mating Connector Use 86792094with Integrated Circuit | View on Amazon |
| UAC Fits: 1.3L L3 Turbocharged | SW11475C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Pressure Switch | View on Amazon |
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.
3 A/C Refrigerant Pressure Switch parts are listed for the 2021 Buick Encore, from FOUR SEASONS, GM GENUINE and UAC.
Listed part numbers: FOUR SEASONS 20915, GM GENUINE 1551388 and UAC SW11475C.
Accessory Delay Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13500114 | 🇺🇸 US 🇨🇦 CA | Gray35AMP | View on Amazon |
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.
This group shows a single part: GM GENUINE 13500114.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged | RY1930 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Relay | View on Amazon |
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.
This group shows a single part: STANDARD MOTOR PRODUCTS RY1930.
Accessory Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 42568937 | 🇺🇸 US 🇨🇦 CA | AWDLane Keep Assist Sensor Indicator (UHX), Semiautomatic Steering and Braking Park Assist (UKG) | View on Amazon |
This table covers the Accessory 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.
This group shows a single part: GM GENUINE 42568937.
Blower Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UAC Fits: 1.3L L3 Turbocharged | SW11409C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HVAC Control Module | View on Amazon |
This table covers the Blower 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.
One part is listed for the 2021 Buick Encore — UAC SW11409C.
Brake Light Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 96484304 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
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.
This group shows a single part: GM GENUINE 96484304.
Cruise Control Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13531977 | 🇺🇸 US 🇨🇦 CA | Fits Jet BlackCruise Control (K34), 3-Spoke Steering Wheel (N45), Intelligent High Beam Control (TQ5), Forward Collision Alert (UEU) | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13531978 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13531988 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
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.
3 Cruise Control Switch parts for the 2021 Buick Encore come from GM GENUINE.
This group includes GM GENUINE 13531977, GM GENUINE 13531978 and GM GENUINE 13531988.
Defroster Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84095362 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
One part is listed for the 2021 Buick Encore — GM GENUINE 84095362.
Diesel Fuel Heater Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84095362 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the relays that control the Diesel Fuel Heater 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.
This group shows a single part: GM GENUINE 84095362.
Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 1.3L L3 Turbocharged | 1S17949 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
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.
This group shows a single part: WELLS 1S17949.
Door Lock Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 42899246 | 🇺🇸 US 🇨🇦 CA | LeftJet Black | View on Amazon |
This table covers the Door Lock 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.
One part is listed for the 2021 Buick Encore — GM GENUINE 42899246.
Engine Control Module Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84095363 | 🇺🇸 US 🇨🇦 CA | 630 ISO Mini Relay | View on Amazon |
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.
This group shows a single part: GM GENUINE 84095363.
Hazard Warning Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 42569424 | 🇺🇸 US 🇨🇦 CA | JET BLACK | View on Amazon |
| WELLS Fits: 1.3L L3 Turbocharged | 1S17851 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Hazard Warning 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.
2 Hazard Warning Switch parts for the 2021 Buick Encore come from 2 brands — GM GENUINE and WELLS.
Listed part numbers: GM GENUINE 42569424 and WELLS 1S17851.
Headlamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84201604 | 🇺🇸 US 🇨🇦 CA | Jet BlackFront Fog Lamp (T3U), Auto On / Off Headlamps Control (T83) | View on Amazon |
| WELLS Fits: 1.3L L3 Turbocharged | 1S18160 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Fog Lights | View on Amazon |
| WELLS Fits: 1.3L L3 Turbocharged | 1S18164 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Fog Lights | View on Amazon |
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.
3 Headlamp Switch parts for the 2021 Buick Encore come from 2 brands — WELLS and GM GENUINE.
Listed part numbers: GM GENUINE 84201604, WELLS 1S18160 and WELLS 1S18164.
Ignition Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84095362 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
This group shows a single part: GM GENUINE 84095362.
Ignition Starter Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 1.3L L3 Turbocharged | 1S17694 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Push Button Switch | View on Amazon |
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.
This group shows a single part: WELLS 1S17694.
Instrument Panel Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 1.3L L3 Turbocharged | 1S18164 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Fog Lights | View on Amazon |
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.
One part is listed for the 2021 Buick Encore — WELLS 1S18164.
Liftgate Close Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 42719865 | 🇺🇸 US 🇨🇦 CA | Lift Gate (TB4), Interior Trim Color (4ID), Interior Trim Color (4JK), Interior Trim Color (4JO)Jet Black | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84915954 | 🇺🇸 US 🇨🇦 CA | UNCODEDJET BLACK | View on Amazon |
This table covers the Liftgate Close 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.
2 Liftgate Close Switch parts for the 2021 Buick Encore come from GM GENUINE.
Part numbers include GM GENUINE 42719865 and GM GENUINE 84915954.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 1.3L L3 Turbocharged | 926397 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 3 Way with Leadswith Flat Connector | View on Amazon |
| HOLSTEIN Fits: 1.3L L3 Turbocharged | 2OPS0020 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged | OPS322 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Fits: 1.3L L3 Turbocharged | 2561004 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Seal | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 1.3L L3 Turbocharged | PS623 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangle, OvalSensor Only | View on Amazon |
| WELLS Popular Fits: 1.3L L3 Turbocharged | 1S12693 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Gender: Female | View on Amazon |
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.
6 Oil Pressure Sender / Switch parts are listed for the 2021 Buick Encore, from DORMAN, HOLSTEIN, UNITED MOTOR PRODUCTS and 3 other brands. STANDARD MOTOR PRODUCTS PS623 carries the "Popular" badge.
In the Economy grade, DORMAN, HOLSTEIN, UNITED MOTOR PRODUCTS and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is DORMAN 926397.
The Standard Replacement section lists 2 options from STANDARD MOTOR PRODUCTS and WELLS — built to original-equipment specification. STANDARD MOTOR PRODUCTS PS623 is listed in this group.
Listed part numbers: STANDARD MOTOR PRODUCTS PS623, DORMAN 926397 and HOLSTEIN 2OPS0020, plus the other parts above.
Parking Brake Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 42922134 | 🇺🇸 US 🇨🇦 CA | JET BLACK | View on Amazon |
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.
One part is listed for the 2021 Buick Encore — GM GENUINE 42922134.
Parking Lamp Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 96484304 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
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.
One part is listed for the 2021 Buick Encore — GM GENUINE 96484304.
Power Seat Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Popular Fits: 1.3L L3 Turbocharged | GM1322316 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left8 Way Adjustment | View on Amazon |
| DORMAN Fits: 1.3L L3 Turbocharged | 901256 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right6 Way Adjustment | View on Amazon |
| DORMAN Fits: 1.3L L3 Turbocharged | 901271 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left8 Way Adjustment | View on Amazon |
| VEMO Fits: 1.3L L3 Turbocharged | V51730160 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 6 Way | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Popular Fits: 1.3L L3 Turbocharged | 662584 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left8 Way Adjustment | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged | PSW17 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwith 6 Way | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged | PSW149 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangle | 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.
7 Power Seat Switch parts for the 2021 Buick Encore come from 5 brands — DORMAN, STANDARD MOTOR PRODUCTS, AUTOTECNICA and 2 other brands. The "Popular" part is AUTOTECNICA GM1322316.
The Economy section: 4 options from DORMAN, AUTOTECNICA and VEMO. AUTOTECNICA GM1322316 is listed in this group.
Standard Replacement: 3 parts, from STANDARD MOTOR PRODUCTS and ROSTRA. A representative part number is ROSTRA 662584.
Part numbers include AUTOTECNICA GM1322316, DORMAN 901256 and DORMAN 901271, among others listed above.
Power Window Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 1.3L L3 Turbocharged | 84699725 | 🇺🇸 US 🇨🇦 CA | Front LeftPreferred or Select | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 85694267 | 🇺🇸 US 🇨🇦 CA | RearJET BLACK | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84513460 | 🇺🇸 US 🇨🇦 CA | Terminal Type: "Blade Pin" | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 85694265 | 🇺🇸 US 🇨🇦 CA | Front LeftEssence | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged | DWS2050 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Type: Blade and Pin | 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.
5 Power Window Switch parts are listed for the 2021 Buick Encore, from GM GENUINE and STANDARD MOTOR PRODUCTS. GM GENUINE 84699725 carries the "Popular" badge.
Listed part numbers: GM GENUINE 84699725, GM GENUINE 85694267 and GM GENUINE 84513460, plus the other parts above.
Seat Heater Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER Fits: 1.3L L3 Turbocharged | PSW149 | 🇺🇸 US 🇨🇦 CA | Seat Control SwitchPower Seat Switch | View on Amazon |
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.
This group shows a single part: ULTRA-POWER PSW149.
Starter Motor Control Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 1.3L L3 Turbocharged | RY302 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Multi-Function RelayTerminal Quantity: 4 | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84095363 | 🇺🇸 US 🇨🇦 CA | 630 ISO Mini RelayAccessory | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 96484304 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| HOLSTEIN Fits: 1.3L L3 Turbocharged | 2RSW0026 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged | RY302T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-SeriesFunctions: Relay | View on Amazon |
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.
5 Starter Motor Control Relay parts for the 2021 Buick Encore come from 3 brands — STANDARD MOTOR PRODUCTS, GM GENUINE and HOLSTEIN. The "Popular" part is STANDARD MOTOR PRODUCTS RY302.
Part numbers include STANDARD MOTOR PRODUCTS RY302, GM GENUINE 84095363 and GM GENUINE 96484304, among others listed above.
Sunroof / Sunshade Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 39102582 | 🇺🇸 US 🇨🇦 CA | Power Sun Roof (C3U)JET BLACK | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 39138782 | 🇺🇸 US 🇨🇦 CA | Power Sun Roof (C3U)Jet Black | 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.
2 Sunroof / Sunshade Switch parts for the 2021 Buick Encore come from GM GENUINE.
Listed part numbers: GM GENUINE 39102582 and GM GENUINE 39138782.
Transmission-Automatic Fluid Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 1.3L L3 Turbocharged | 926829 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Automatic CVT trans. | 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.
One part is listed for the 2021 Buick Encore — DORMAN 926829.
Trunk Lid / Tailgate Release Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84389158 | 🇺🇸 US 🇨🇦 CA | JET BLACKDRIVER DOOR | 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.
This group shows a single part: GM GENUINE 84389158.
Turn Signal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 42750983 | 🇺🇸 US 🇨🇦 CA | JET BLACKIntelligent High Beam Control (TQ5) | View on Amazon |
| WELLS Fits: 1.3L L3 Turbocharged | 1S17949 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on 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.
2 Turn Signal Switch parts are listed for the 2021 Buick Encore, from GM GENUINE and WELLS.
Listed part numbers: GM GENUINE 42750983 and WELLS 1S17949.
Wiper / Washer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 42712430 | 🇺🇸 US 🇨🇦 CA | Jet BlackExcept Pulse Moisture Sensitive Windshield Wiper System (CE1) | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 42712431 | 🇺🇸 US 🇨🇦 CA | Pulse Moisture Sensitive Windshield Wiper System (CE1)JET BLACK | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged | WP694 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Column Mountedwith Rain Sensitive Wipers | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged | WP695 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Column Mountedwithout Rain Sensitive Wipers | View on Amazon |
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.
4 Wiper / Washer Switch parts for the 2021 Buick Encore come from 2 brands — GM GENUINE and STANDARD MOTOR PRODUCTS.
Listed part numbers: GM GENUINE 42712430, GM GENUINE 42712431 and STANDARD MOTOR PRODUCTS WP694, plus the other parts above.
Buying Electrical Switch & Relay Parts for a 2021 Buick Encore
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: Power Seat Switch and Oil Pressure Sender / Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2021 Buick Encore?
Our catalog currently lists 63 electrical switch & relay parts for the 2021 Buick Encore across 31 subcategories and 13 brands, covering all 3 engine options (1.2L L3 Turbocharged, 1.3L L3 Turbocharged and 1.4L L4 Turbocharged). Each part is matched to the engine(s) it fits.
Do electrical switch & relay parts differ between 2021 Buick Encore 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 2021 Buick Encore?
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 2021 Buick Encore 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 2021 Buick Encore?
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 2021 Buick Encore
Electrical Switch & Relay Parts for Other Buick Encore 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.