- Safety
- 4
- of 5 stars
- Recalls
- 7
- on record
- MPG
- —
- combined
Open recalls on record
7 safety recalls. Recall repairs are free at any franchised dealer — check the VIN before you buy.
Vehicle Summary
2021 GMC Sierra 1500
Before You Buy
Safety record at a glance
- Recall campaigns
- 7
- Owner complaints
- 520
- Complaints citing a crash
- 5
These are raw counts from NHTSA records. They are not normalized by how many of these vehicles are on the road, so a model that sold in large numbers will tend to show more of everything. We do not publish a composite safety or reliability score.
7 Recalls on Record
These recalls have been issued by the manufacturer. Contact any authorized dealer to verify they have been completed — repairs are free.
Safety recalls
7 NHTSA campaigns affecting this model year.
- 20V792000high
Safety restraint issue
SEAT BELTS
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.
Full campaign recordRemedy
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.
- 20V811000high
Safety restraint issue
SEAT BELTS
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 incorrect bolt was used, the seat belt may not be properly attached to the vehicle.
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.
Full campaign recordRemedy
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.
- 20V684000high
Tire/wheel issue
TIRES
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.
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.
Full campaign recordRemedy
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 1-800-458-8006. GM's number for this recall is N202319030.
- 21V985000high
Tire/wheel issue
TIRES:TEMPORARY/EMERGENCY SPARE TIRE
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.
Consequence
An ABS system that does not function properly can increase the risk of a crash.
Full campaign recordRemedy
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 may contact GM customer service at 1-800-462-8782 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212346510.
- 24V797000high
Drivetrain issue
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
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.
Consequence
Rear wheel lock-up can increase the risk of a crash.
Full campaign recordRemedy
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 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
- 25V274000high
Engine issue
ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
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.
Consequence
Engine failure increases the risk of a crash.
Full campaign recordRemedy
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, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252494000.
- 26V083000high
Drivetrain issue
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
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.
Consequence
Rear wheel lock up increases the risk of a crash.
Full campaign recordRemedy
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 February 12, 2026.
NHTSA crash-test ratings
NCAP star ratings and the underlying test breakdown for the 2021 GMC Sierra 1500.
Frontal crash
- Driver
- 4 / 5
- Passenger
- 4 / 5
Side crash
- Driver
- 5 / 5
- Passenger
- 5 / 5
- Side pole
- 5 / 5
Rollover
- Rollover risk
- 19.8%
- Dynamic tip
- No Tip
Driver-assistance technologies
- Electronic stability control
- Standard
- Forward collision warning
- Optional
- Lane departure warning
- Optional
What the ratings mean
NHTSA gives the 2021 GMC Sierra 1500 4 out of 5 stars overall. NHTSA does not publish enough comparable results for this class and year to rank it against peers.
NHTSA published results for every NCAP test in this program, so the overall star rating rests on a complete set of crash and rollover results.
NHTSA's dynamic test put this vehicle's rollover probability at 19.8% in a single-vehicle crash — the figure behind the rollover star rating, published here because the star alone hides how wide each band is.
Fuel economy & emissions
The EPA holds no fuel-economy record for this model year.
The EPA does not publish a record for every model year.
Consumer complaints
520 owner reports filed with NHTSA.
- 520
- Total
- 5
- Crashes
- 6
- Fires
- 2
- Injuries
Most reported components
- ENGINE380
- ELECTRICAL34
- OTHER24
- BRAKES22
- STEERING20
Notable Issues
520 consumer complaints filed with NHTSA. 2 reports involve injuries. 5 reports involve a crash.
Most reported problems
Safety timeline
Every dated recall and NHTSA investigation for the 2021 GMC Sierra 1500, newest first.
- Recall
Rear wheel lock up increases the risk of a crash.
- Investigation opened
NHTSA opened investigation RQ26001
Loss of motive power due to engine failure post recall remedy
- Investigation opened
NHTSA opened investigation EA25007
Loss of motive power due to engine failure
- Investigation closed
NHTSA closed investigation PE25001
Loss of motive power due to engine failure
- Recall
Engine failure increases the risk of a crash.
- Investigation opened
NHTSA opened investigation PE25001
Loss of motive power due to engine failure
- Recall
Rear wheel lock-up can increase the risk of a crash.
- Investigation closed
NHTSA closed investigation PE21010
Air Bag Malfunction
- Recall
An ABS system that does not function properly can increase the risk of a crash.
- Investigation opened
NHTSA opened investigation PE21010
Air Bag Malfunction
- Recall
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.
- Recall
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.
- Recall
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.
Dates are the NHTSA report-received date for recalls and the ODI open/close date for investigations. Crash-test ratings are not shown here because the source does not provide a reliable publication date for them.
Specifications & ratings
Specifications
- Body class
- Unknown
- Drive type
- Unknown
- Engine
- 0L 0-cyl
- Fuel type
- Unknown
- Transmission
- Unknown
- Seats
- 0
NHTSA crash ratings
- Overall
- Frontal
- Side
- Rollover
Explore related
Systems recalled
Safety timeline
Full timeline- Recall
Rear wheel lock up increases the risk of a crash.
- Investigation opened
NHTSA opened investigation RQ26001
Loss of motive power due to engine failure post recall remedy
- Investigation opened
NHTSA opened investigation EA25007
Loss of motive power due to engine failure
- Investigation closed
NHTSA closed investigation PE25001
Loss of motive power due to engine failure
- Recall
Engine failure increases the risk of a crash.