repaired · 2026 Q3
Control module: software
NewRisk. Rear wheel lock up increases the risk of a crash.
2020 GMC Sierra 2500Problems, recalls & complaints
NHTSA has logged 80 owner complaints about the 2020 GMC Sierra 2500, most often about the power train. It is covered by 9 safety recalls, and for recall 21V-578 the manufacturer reports only 55% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through October 27, 2026. Updated daily. Photo: Kevauto, CC BY-SA 4.0.
Complaints by system
Where the 2020 GMC Sierra 2500 has problems
80 complaints grouped by the system owners reported.
25Power train
13Electrical system2 crash/fire/injury
12Service brakes
10Engine1 crash/fire/injury
6Structure2 crash/fire/injury
6Steering
5Forward collision avoidance
4Vehicle speed control
2Wheels
1613 other systems4 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Power train | 25 | 0 |
| Electrical system | 13 | 2 |
| Service brakes | 12 | 0 |
| Engine | 10 | 1 |
| Structure | 6 | 2 |
| Steering | 6 | 0 |
| Forward collision avoidance | 5 | 0 |
| Vehicle speed control | 4 | 0 |
| Wheels | 2 | 0 |
| 13 other systems | 16 | 4 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
9 recalls
2020 GMC Sierra 2500 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2026 Q3
Control module: software
Risk. Rear wheel lock-up can increase the risk of a crash.
repaired · 2026 Q1
Tailgate: latch
Risk. An unlatched tailgate may open while driving and result in a loss of unsecured cargo, creating a road hazard and increasing the risk of a crash.
repaired · 2023 Q3
Tires: temporary/emergency spare tire
Risk. An ABS system that cannot control the rear wheels independently increases the risk of a crash.
Show 5 more recalls
repaired · 2022 Q4
Seat belts
Risk. 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…
repaired · 2022 Q2
Curtain: inflator
Risk. If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
repaired · 2022 Q2
Hood: latch
Risk. If a striker wire fractures, the hood may open unexpectedly while driving, increasing the risk of a crash.
repaired · 2022 Q1
Hood: latch
Risk. If a striker wire fractures, the hood may open unexpectedly while driving, increasing the risk of a crash.
repaired · 2021 Q2
Seat belts: pretensioner
Risk. A vehicle fire could result if materials ignite inside the vehicle.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with GMC.
Best & worst years
2020 vs. every other Sierra 2500 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Sierra 2500 median. How we score
'97'98'99'00'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2020 GMC Sierra 2500 safety ratings
2020 GMC Sierra 2500 PU/CC 4WD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
- Stability control: Standard
- Forward collision warning: No
- Lane departure warning: No
1 investigation
NHTSA defect investigations
Federal investigations that included the 2020 GMC Sierra 2500, and the recalls they led to.
- Air Bag MalfunctionNo recall
In owners' words
What Sierra 2500 owners report
Recent power train complaints filed with NHTSA, shortened. Personal details are removed.
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…
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…
While driving vehicle flashed engine power reduction signal and then the emergency brake automatic feature came on abruptly. Fortunately, I had been able to slow down after the reduced power, but if I wouldn't have quickly reacted to that, I think the emergency brake system would have caused a…
Own a 2020 Sierra 2500?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.