Safety Score
86
Safe
Recalls
0
Complaints
50
NCAP Stars
—
Recalls (0)
No recalls found for the 2020 GMC Sierra 2500.
Owner Complaints (showing up to 50)
| Date | Component | Crash | Injuries | Summary |
|---|---|---|---|---|
| 2026-02-18 | POWER TRAIN | No | 0 | While driving down a highway doing between 45 and 55 mph the transmission suddenly and completely faulted causing the t… |
| 2026-01-30 | POWER TRAIN | No | 0 | A couple times I heard loud clanking coming from rear brakes. One time in particular I was trying to stop and it felt l… |
| 2025-12-19 | ELECTRICAL SYSTEM | No | 0 | The main tailgate will not go down or function properly and it says online there is a national recall for this, but doe… |
| 2025-11-26 | ENGINE | No | 0 | Catastrophic engine failure after taking it in for the April 2025 recall. Complete engine replacement needed |
| 2025-11-23 | ELECTRICAL SYSTEM | No | 0 | The rear defroster massively overheated. It started heavily smoking and eventually exploded the rear windows. Only warn… |
| 2025-11-01 | STEERING | No | 0 | Bad vibration and bad wobble in steering wheel and front end components. This is the 3rd or 4th time my truck has been … |
| 2025-07-11 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated that while driving approximately 70-80 MPH, the transmissio… |
| 2025-06-28 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated that while her husband was driving 30 MPH, the rear wheels … |
| 2025-06-20 | POWER TRAIN | No | 0 | What component or system failed or malfunctioned, and is it available for inspection upon request? - Transmission Valve… |
| 2025-06-13 | POWER TRAIN | No | 0 | Torque converter in my transmission we out, causing my gears to grind and lose power. Slight rumbling sound under the … |
| 2025-06-11 | ENGINE | No | 0 | The catalytic converter failed at 93,000 miles, and 64 months. GM says it is out of warranty. |
| 2025-05-12 | POWER TRAIN | No | 0 | After the transmission recall was completed, I’m now having erratic shifting. Having the recall adding software monitor… |
| 2025-05-09 | UNKNOWN OR OTHER | No | 0 | Tailgate unlatches unexpectedly. Has happened while parked and while driving. Almost caused accident to others. |
| 2025-05-01 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power T… |
| 2025-04-20 | UNKNOWN OR OTHER | No | 0 | Cracks in the rear sliding window plastic upper rail glass guide causing Rear window leaking water and causing mold fro… |
| 2025-04-07 | ENGINE AND ENGINE COOLING | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated that the vehicle was under NHTSA Campaign Number: 24V797000… |
| 2025-03-28 | UNKNOWN OR OTHER | No | 0 | I have a notice of a recall for the transmission control module and I took it to a GMC dealership and they are refusing… |
| 2025-03-02 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated while driving 30 MPH, the engine revved while the vehicle l… |
| 2025-03-02 | UNKNOWN OR OTHER | No | 0 | ODI # 11646185 My truck on [XXX] leaked transmission coolant from the jumper line leak( which this part is recalled bu… |
| 2025-03-01 | ELECTRICAL SYSTEM | No | 0 | Vehicle was parked in a school parking lot. Rear Trailer Harness and modules in back short circuited causing an electri… |
| 2025-02-20 | STRUCTURE:BODY | No | 0 | While towing my dump trailer early in the morning for about 20 minutes I noticed sudden hard up shifting and down shift… |
| 2025-02-13 | STEERING | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated that while driving at various speeds, the steering wheel wa… |
| 2025-02-03 | POWER TRAIN | No | 0 | Transmission not shifting correctly. Have had the recall software update. Two new valve bodies and still not shifting c… |
| 2025-01-10 | POWER TRAIN | No | 0 | My truck had been sitting idling for about 20 minutes on a job site on flat level ground. I turn around for whatever r… |
| 2025-01-07 | ENGINE | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated while driving at an undisclosed speed, the accelerator peda… |
| 2024-12-28 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated while driving 63 MPH, and towing a 15,000 lb. 5th Wheel RV,… |
| 2024-12-24 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (POWER T… |
| 2024-12-22 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power T… |
| 2024-11-16 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated while driving approximately 65 MPH, the vehicle lost motive… |
| 2024-10-24 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power T… |
| 2024-10-24 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power T… |
| 2024-10-24 | POWER TRAIN | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (POWER T… |
| 2024-10-21 | WHEELS | No | 0 | Tires locking up while driving. NOT SAFE TO DRIVE |
| 2024-09-09 | SERVICE BRAKES | No | 0 | I HAVE A 5TH WHEEL WITH SOLAR AND MY BRAKE CONTROLER STOPS WORKING PERIODICALLY. I HAVE A CASE# WITH GM 9-13676268071. … |
| 2024-06-01 | UNKNOWN OR OTHER | No | 0 | Well, we ended up having a problem with our transmission in our 2020 truck. I am the wife and I was driving down the hi… |
| 2024-05-31 | SERVICE BRAKES | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated that while driving 65 MPH, the message "Check Service Brake… |
| 2024-05-14 | STRUCTURE | No | 0 | The contact owns a 2020 GMC Sierra 2500. The contact stated that when the vehicle was parked, the contact's husband not… |
| 2024-03-28 | SERVICE BRAKES | No | 0 | My vehicle inadvertently locks the rear tires at highway speeds and then releases and drives. In some instances it may … |
| 2023-12-03 | TIRES | No | 0 | I was travelling south bound on the highway at 70 mph when out of no where the left rear tire failed. The tread peeled… |
| 2023-10-27 | UNKNOWN OR OTHER | No | 0 | The rear window of my 2020 GMC Sierra developed major water leaks across the entire window in 2021. GM has documented t… |
| 2023-08-22 | ENGINE | No | 0 | Low coolant light keeps coming on and dealership checks and confirms coolant is not low. The end result is the sensor I… |
| 2023-05-01 | UNKNOWN OR OTHER | No | 0 | Rear sliding window leak and has saturated seat and carpet causing an unhealthy environment. Spoke with dealer and was … |
| 2023-04-28 | UNKNOWN OR OTHER | No | 0 | When towing a trailer a notice to service trailer brakes comes on and the trailer brakes are disabled |
| 2023-03-06 | ENGINE | No | 0 | Check engine came on Sunday morning the code that through was P0 526 u062F. After calling the dealer and setting maint… |
| 2022-12-23 | UNKNOWN OR OTHER | No | 0 | 1. The Engine Block heater sparked and created a small flash underneath the truck. It can be inspected whenever you wou… |
| 2022-06-28 | TIRES | No | 0 | The contact owns a 2020 GMC Sierra 2500 equipped with Goodyear Tires, Tire Line: Wrangler Trail Runner, Tire Size: LT2… |
| 2022-05-25 | ENGINE | No | 0 | I took my vehicle into the local dealership two weeks ago for the DPF emissions voluntary recall. Prior to the service … |
| 2022-03-10 | POWER TRAIN | No | 0 | There is an issue that is causing the batteries to die. This in return causes the Vehicle to go into Limp home mode wit… |
| 2022-02-09 | FUEL/PROPULSION SYSTEM | No | 0 | DEF tank system failure. Vehicle is under warranty, 18 months old, (purchased 08/20) with 20,000 miles. 6 WEEKS AGO I t… |
| 2022-02-05 | ELECTRICAL SYSTEM | No | 0 | Service Trailer Brake System Alert constantly going off |