2021 Buick Envision Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

3 Alternator / Generator parts for the 2021 Buick Envision come from 3 brands — GM GENUINE, FVP and PURE ENERGY.

The New section lists 1 option from GM GENUINE — brand-new units rather than rebuilt ones. GM GENUINE 26398558 is listed in this group.

The Remanufactured section lists 2 options from FVP and PURE ENERGY — factory-rebuilt units with new wear components. FVP 10475 is listed in this group.

Listed part numbers: GM GENUINE 26398558 and FVP 10475, plus the other parts above.

This table covers the Alternator / Generator bolts. Read more

One part is listed for the 2021 Buick Envision — GM GENUINE 11611102.

This table covers the Antenna modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

One part is listed for the 2021 Buick Envision — GM GENUINE 84948802.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

10 Battery parts are listed for the 2021 Buick Envision, from DEKA, ACDELCO, BOSCH and 5 other brands. DEKA 9A48 carries the "Popular" badge.

The AGM (Extended Life) section lists 9 options from DEKA, ACDELCO, BOSCH and 4 other brands — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A48 is listed in this group.

The Performance AGM (Extended Life + Increased Power) section lists 1 option from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT85094R is listed in this group.

This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

4 Battery Cable parts for the 2021 Buick Envision come from GM GENUINE.

Listed part numbers: GM GENUINE 85595392, GM GENUINE 84887286 and GM GENUINE 84887287, plus the other parts above.

This table covers the covers that protect battery terminals. Read more

One part is listed for the 2021 Buick Envision — GM GENUINE 23347544.

This table covers the body-control modules that run lighting, locks and wipers. Read more

2 Body Control Module (BCM) parts for the 2021 Buick Envision come from GM GENUINE.

Part numbers include GM GENUINE 85558548 and GM GENUINE 13548775.

This table covers the brackets that mount the Body Control Module (BCM). Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

2 Body Control Module (BCM) Bracket parts for the 2021 Buick Envision come from GM GENUINE.

This group includes GM GENUINE 84624563 and GM GENUINE 84624681.

This table covers the engine-control modules that run fuel, spark and emissions. Read more

This group shows a single part: GM GENUINE 12726539.

This table covers the Hands Free Vehicle Access modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

This group shows a single part: GM GENUINE 85038020.

This table covers the Hands Free Vehicle Access 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. Read more

This group shows a single part: GM GENUINE 85518160.

This table covers the horns mounted in the front of the vehicle. Read more

4 Horn parts are listed for the 2021 Buick Envision, from GM GENUINE and DORMAN.

Listed part numbers: DORMAN 926568, GM GENUINE 84656765 and GM GENUINE 84656764, plus the other parts above.

This table covers the key fobs that lock, unlock and start the vehicle. Read more

2 Keyless Entry Remote parts for the 2021 Buick Envision come from GM GENUINE.

Listed part numbers: GM GENUINE 13547569 and GM GENUINE 13547571.

This table covers the modules that control the exterior lighting. Read more

This group shows a single part: GM GENUINE 84922663.

This table covers the Park Assist (PAS) Camera modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

GM GENUINE supplies the 3 Park Assist (PAS) Camera Module parts for the 2021 Buick Envision.

This group includes GM GENUINE 84761801, GM GENUINE 84761799 and GM GENUINE 84761800.

This table covers the ultrasonic park-aid sensors in the bumper. 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. Read more

7 Parking Aid Sensor parts for the 2021 Buick Envision come from 3 brands — GM GENUINE, BOSCH and STANDARD MOTOR PRODUCTS. The "Popular" part is BOSCH F00E270754.

Listed part numbers: BOSCH F00E270754, GM GENUINE 84586217 and BOSCH F00E270799, plus the other parts above.

This table covers the Serial Data Gateway modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

This group shows a single part: GM GENUINE 13542886.

This table covers the Side Object Sensor modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

2 Side Object Sensor Module parts for the 2021 Buick Envision come from GM GENUINE.

Part numbers include GM GENUINE 85826110 and GM GENUINE 85826109.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

3 Speed Sensor parts are listed for the 2021 Buick Envision, from GM GENUINE and STANDARD MOTOR PRODUCTS.

This group includes GM GENUINE 24295280, GM GENUINE 24298199 and STANDARD MOTOR PRODUCTS SC801.

This table covers the Speed Sensor Reluctor rings. Read more

GM GENUINE supplies both parts for the 2021 Buick Envision.

This group includes GM GENUINE 24230744 and GM GENUINE 24061032.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

3 Starter Motor parts for the 2021 Buick Envision come from 3 brands — GM GENUINE, FVP and PURE ENERGY.

The New section: 1 option from GM GENUINE. GM GENUINE 12730578 is listed in this group.

The Remanufactured section: 2 options from FVP and PURE ENERGY. FVP 12907 is listed in this group.

This group includes GM GENUINE 12730578 and FVP 12907 and the remaining parts above.