NHTSA lists 578 complaints for the 2021 GMC Sierra 1500, 6 of them mention a crash and 6 mention a fire. 3 complaints mention an injury, with 3 injuries and 0 deaths reported.
Data build 2026-10-10.
NHTSA lists this vehicle as GMC SIERRA 1500.
Recalls
See new recalls and investigations this week.
7 recalls.
Date: 2026-02-12. Systems: POWER TRAIN.
Defect: General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up. (excerpt)
Consequence: Rear wheel lock up increases the risk of a crash. (excerpt)
Remedy: Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on Feb (excerpt)
Do not drive: No. Park outside: No.
Date: 2025-04-24. Systems: ENGINE AND ENGINE COOLING.
Defect: General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure. (excerpt)
Consequence: Engine failure increases the risk of a crash. (excerpt)
Remedy: Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 18, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Ch (excerpt)
Do not drive: No. Park outside: No.
Date: 2024-10-24. Systems: POWER TRAIN.
Defect: General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up. (excerpt)
Consequence: Rear wheel lock-up can increase the risk of a crash. (excerpt)
Remedy: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458 (excerpt)
Do not drive: No. Park outside: No.
Date: 2021-12-16. Systems: TIRES.
Defect: General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions. (excerpt)
Consequence: An ABS system that does not function properly can increase the risk of a crash. (excerpt)
Remedy: Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires. Owner notification letters were mailed February 7, 2022. Owners ma (excerpt)
Do not drive: No. Park outside: No.
Date: 2020-12-23. Systems: SEAT BELTS.
Defect: General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an (excerpt)
Consequence: If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury. (excerpt)
Remedy: GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began January 29, 2021. Owners may contact GMC customer service at 1-800-462-8785, Cadillac customer service at 1-800-458-8006, or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202322230. (excerpt)
Do not drive: No. Park outside: No.
Date: 2020-12-17. Systems: SEAT BELTS.
Defect: General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.
Consequence: If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.
Remedy: GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.
Do not drive: No. Park outside: No.
Date: 2020-11-05. Systems: TIRES.
Defect: General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured. (excerpt)
Consequence: Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash. (excerpt)
Remedy: GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800 (excerpt)
Do not drive: No. Park outside: No.
Investigations
5 investigations; 2 open.
EA26005
Opened: 2026-08-20. Closed: Not listed.
Loss of motive power due to engine failure post recall remedy
On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001.A This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued
Systems: ENGINE.
Linked campaign numbers: None listed.
RQ26001
Opened: 2026-01-16. Closed: 2026-08-20.
Loss of motive power due to engine failure post recall remedy
On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001.A This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued
Systems: ENGINE.
Linked campaign numbers: None listed.
EA25007
Opened: 2025-10-23. Closed: Not listed.
Loss of motive power due to engine failure
The Office of Defects Investigation (ODI) has received 1,157 reports of engine bearing failure failures in the L87 6.2L engine produced by General Motors (GM). Of the 1,157 reports received, 173 are outside of the scope of recall 25V-274. These engines are installed in Model Years (MY) 2019a 2024 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2021-2024MY Chevrolet Suburban and Tahoe, GMC Yukon
Systems: ENGINE, ENGINE AND ENGINE COOLING.
Linked campaign numbers: None listed.
PE25001
Opened: 2025-01-16. Closed: 2025-10-23.
Loss of motive power due to engine failure
On January 16, 2025, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE25001 after receiving complaints and field reports concerning engine failures in MY2019-2024 GMa s full-size truck and SUV T1XX platform equipped with the L87 6.2L V8 engine. These complainants alleged engine bearing failures resulting in knocking and growling noises from the enginea s bottom end and i
Systems: ENGINE, ENGINE AND ENGINE COOLING.
Linked campaign numbers: 25V274.
PE21010
Opened: 2021-04-09. Closed: 2023-08-24.
Air Bag Malfunction
On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM). The vehicles included model year (MY) 2020 through 2021 CT4 and CT5 passenger cars, Sierra and Silverado trucks (1500/2500/3500 models
Systems: AIR BAGS.
Linked campaign numbers: None listed.
Manufacturer communications
1,453 manufacturer communications.
Communications by system| System | Count |
|---|
| EQUIPMENT | 322 |
|---|
| ELECTRICAL SYSTEM | 318 |
|---|
| ENGINE AND ENGINE COOLING | 287 |
|---|
| UNKNOWN OR OTHER | 192 |
|---|
| POWER TRAIN | 183 |
|---|
| ENGINE | 140 |
|---|
| STRUCTURE | 81 |
|---|
| BACK OVER PREVENTION | 63 |
|---|
11038139
Date: 2026-10-05. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool
11037555
Date: 2026-09-26. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
11037550
Date: 2026-09-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
11037253
Date: 2026-09-04. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
11036713
Date: 2026-08-27. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.
11036392
Date: 2026-08-20. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
11036196
Date: 2026-08-07. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates an issue where an aftermarket autostop device or rear taillights is causing a dead battery.
11035709
Date: 2026-07-31. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.
11035350
Date: 2026-07-23. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This PI provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area.
11035340
Date: 2026-07-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
PI to help diagnose A/C concern