CarRecallWatchThe 2020 GMC Sierra 2500 has 9 safety recalls on file with NHTSA.
Owners have filed 80 complaints with NHTSA, including 1 crash, 4 fires, 1 injury.
The most-reported problem area is Power Train (25 reports).
2020 GMC Sierra 2500 recalls
Rear Wheels Can Lock Up, Raising Crash Risk
Certain pickups from model years 2020 to 2022 may have been repaired incorrectly under an earlier recall (24V797).
Rear Wheels Can Lock Up, Raising Crash Risk
Certain 2020-2021 GM full-size pickups and SUVs equipped with diesel engines may have a transmission control valve that can fail.
Tailgate May Unlatch While Parked, Risking Open Tailgate on the Road
The electronic gate-release switch on the power-unlatching tailgate can short circuit when water gets into it.
Spare tire can disable anti-lock brakes, raising crash risk
Certain 2020-2021 Chevrolet Silverado 2500 and GMC Sierra 2500 trucks equipped with a 17-inch spare tire and either an 18-inch or 20-inch accessory road tire may have a problem: using the spare with other 18-inch or 20-inch tires can prevent the Anti-Lock Braking System (ABS) from engaging.
Front Center Seat Belt May Not Restrain Occupant in Crash
Some full-size Chevrolet Silverado and GMC Sierra pickups from the 2019 to 2020 model years have a problem with the seat belt brackets for the front center seat.
Curtain Airbag May Not Deploy Properly in a Crash
The diffuser on the roof-rail curtain airbag inflator may not have been crimped securely to the inflator.
Hood May Open While Driving, Raising Crash Risk
On certain 2020 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 trucks, the hood-latch striker wires on replacement hoods may not have been heat-treated properly, so they can fracture.
Hood May Open Unexpectedly While Driving
Some 2020 full-size pickup trucks may have hood-latch striker wires that were not heat-treated properly.
Seat Belt Gas Vent Can Ignite Carpet, Causing Fire
Certain trucks have front seat belt pretensioners that, when they fire during a crash, can release hot gas through an opening in the pretensioner bracket.
Most common 2020 GMC Sierra 2500 problems
Problem areas named in the 80 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Power Train | 25 |
| Unknown Or Other | 17 |
| Electrical System | 13 |
| Service Brakes | 12 |
| Engine | 10 |
| Steering | 6 |
| Structure | 6 |
| Forward Collision Avoidance | 5 |
| Vehicle Speed Control | 4 |
| Exterior Lighting | 2 |
What owners report
The contact owns a 2020 GMC Sierra 2500. The contact stated that while driving 65 MPH, there was a burning odor coming from the vehicle. The contact depressed the brake pedal, however, the vehicle failed to respond as needed. The vehicle was pulled over to the side of the road, coasted into a ditch, and went into a field before coming to a stop. After the vehicle came to a stop, the contact became aware that there was a fire behind every wheel, and the flames had spread to the grass. The fire was self-extinguished. The contact referenced NHTSA Campaign Number: 21V758000 (Service Brakes, Hydraulic); as the possible cause of the failure; however, the VIN was not included in the recall. The con
Rear sliding window leak. Water stains on head liner unsure of addition damage.
The contact owns a 2020 GMC Sierra 2500. The contact stated that while stopped at a traffic light and making a left turn at approximately 20 MPH, the transmission failed. The vehicle was unable to exceed 10 MPH. The check engine warning light illuminated, and a dinging sound was heard following the incident. The vehicle shifted erratically, jumped gears, and made unusual noises. The contact associated the failure with NHTSA Campaign Number: 24V797000 (Power Train). The vehicle was towed to the dealer for diagnosis. The dealer confirmed an internal transmission failure and clutch lockup, with DTC P2732. Additionally, the transmission fluid was burnt and contained metal shavings. The dealer co
My rear spoiler roof area leaks. This is something GM knows about and has sent out memos to dealers. To fix this itâs around $1000. I think GM should fix a problem they have been well aware of for sometime.
A dealer "fixed" the P20EE code on this date, then the code came back a week later. Same dealer said they don't have qualified diesel technician, took vehicle to a 2nd dealer 9/22/2025, unable to determine cause of code. On 6/18/2026 same P20EE code came on again, took to dealer, dealer able to perform repairs on 7/30/2026 after ordering the correct parts. No on 9/23/2026 P20EE code is back.
2020 GMC Sierra 2500 questions
Does the 2020 GMC Sierra 2500 have any recalls?
Yes. NHTSA lists 9 safety recalls for the 2020 GMC Sierra 2500: Rear Wheels Can Lock Up, Raising Crash Risk; Rear Wheels Can Lock Up, Raising Crash Risk; Tailgate May Unlatch While Parked, Risking Open Tailgate on the Road; Spare tire can disable anti-lock brakes, raising crash risk; Front Center Seat Belt May Not Restrain Occupant in Crash. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2020 GMC Sierra 2500?
Based on 80 owner complaints filed with NHTSA, the most-reported problem areas are Power Train (25), Unknown Or Other (17), Electrical System (13).
How do I check if a recall on my 2020 GMC Sierra 2500 has been fixed?
Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.