Worst 2020 GMC Sierra 1500 Problems
Top 3 most-reported issues with average mileage at failure.
Engine Problems
Transmission / Drivetrain
Electrical Faults
Check the actual VIN — every car is different.
This page shows the model year's reputation. The VIN tells you about this specific car — accidents, title issues, odometer rollbacks. Full report just $4.99 (vs. Carfax $44.99).
All Problems by Category
Every NHTSA complaint category for the 2020 GMC Sierra 1500.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Engine Problems | 188 | 2 | 1 | 47,747 mi | |
| Transmission / Drivetrain | 79 | 1 | — | 53,477 mi | |
| Electrical Faults | 71 | — | 1 | 18,907 mi | |
| Brakes | 46 | 3 | 1 | 10,894 mi | |
| Steering Defects | 34 | 1 | — | 18,041 mi | |
| Fuel System | 23 | 1 | — | — | |
| Suspension Failures | 17 | — | — | 31,988 mi | |
| Engine & Cooling | 12 | — | — | 88,074 mi | |
| Wipers & Visibility | 12 | — | — | 11,088 mi | |
| Forward Collision Avoidance: Automatic Emergency Braking | 11 | — | — | 10,400 mi | |
| Body Structure | 11 | — | — | — | |
| Unintended Acceleration | 9 | 1 | 1 | 43,000 mi | |
| Electronic Stability Control | 6 | 1 | — | 39,042 mi | |
| Airbags | 5 | 5 | 1 | 36,267 mi | |
| Forward Collision Avoidance: Adaptive Cruise Control | 5 | — | — | 5,100 mi | |
| Headlight/Taillight Failures | 3 | — | — | — | |
| Hydraulic Brakes | 3 | — | — | — | |
| Back Over Prevention: Warnings | 2 | — | — | — | |
| Engine And Engine Cooling:Exhaust System:Emission Control:Urea Injection System (Def) | 2 | — | — | — | |
| Forward Collision Avoidance: Warnings | 2 | — | — | — | |
| Lane Departure: Assist | 2 | — | — | — | |
| Parking-Brake Issues | 2 | — | — | — | |
| Seat Belt Issues | 2 | — | — | — | |
| Tire Defects | 2 | — | — | — | |
| Air Bags:Srs Malfunction Warning Lamp/Light | 1 | — | — | — | |
| Backup Camera | 1 | — | — | — | |
| Back Over Prevention: Sensing System: Camera | 1 | — | — | — | |
| Electrical System: Integrated Trailer Brake Control | 1 | — | — | — | |
| Electrical System:Adas:Blindspot:Sensors | 1 | — | — | — |
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2020 GMC Sierra 1500. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Recalls for 2020 GMC Sierra 1500
12 NHTSA recall campaigns affecting ~2,058,981 vehicles.
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.
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.
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.
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
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.
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.
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 trucks. One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving.
General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The bolts used to attach the front and/or rear brake calipers may have not been heat treated and may break under load.
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.
+ 2 more recalls
Other GMC Sierra 1500 Years
2020 GMC Sierra 1500 — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2020 GMC Sierra 1500 reliable?
What are common problems with the 2020 GMC Sierra 1500?
At what mileage do problems start on the 2020 GMC Sierra 1500?
How safe is the 2020 GMC Sierra 1500?
Does the 2020 GMC Sierra 1500 have any recalls?
Should I buy a 2020 GMC Sierra 1500?
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.
Wider context: See the full GMC Sierra 1500 reliability report with year-by-year comparison and generation analysis.
Check Your Specific 2020 GMC Sierra 1500
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.
Check Any VIN — $4.99