2020 GMC Sierra 2500 Other or unknown Problems
- Complaints
- 18about this part
- Share
- 23%of 80 total for the year
- Median mileage
- 4,500miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 18 complaints about the other or unknown of the 2020 GMC Sierra 2500, 23% of the 80 complaints for this model year. Where a mileage was given, the median is 4,500 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The screen on my truck has gone blank several times and the volume on the radio goes super load and the only way to stop it seems to be to stop and turn off the truck, open the doors and re start truck. Today, I couldn't get my screen to go off in my truck when I turned it off, I tried turning off, restarting etc but to no avail. I'm at work now and fear that the battery will go dead before I get off work. I just had the truck at Gmc 2/6/2021 and was told that their were no recalls. …”
NHTSA complaint #11396147, filed 2021-02, 8,501 miles“The front park assist sensors on this truck do not operate as intended, or as on prior years or as on other vehicles. The sensors did not pick up parking bollards in front of a convenience store and resulted in a minor ding that cost over $1300 to repair. When bumper was repaired the service person said sensors were fixed, yet, to his surprise, we were able to inch up to a car directly intersecting the front of the car and it did not pick it up. I did a similar test with a brand new/unsold vehicle on dealer lot ind it failed to sense the large truck directly in front of it. …”
NHTSA complaint #11330146, filed 2020-06, 4,500 miles“Rear sliding window leak and has saturated seat and carpet causing an unhealthy environment. Spoke with dealer and was told it is a design flaw and repairs are not covered under extended warranty. I was also told it is only a temporary fix and “ leak will reoccur”. I only realized of the problem when soap residue was seen on the inside of the widow. Dealer gave estimate of repair.”
NHTSA complaint #11547265, filed 2023-09“Tailgate fell down when I had a trailer hooked up. I was parked, then backed up the trailer. Tailgate came down on the jack and scratched the tailgate. There is a recall on some trucks but mine says no recall. Sounds like same issue.”
NHTSA complaint #11574977, filed 2024-03“I have a notice of a recall for the transmission control module and I took it to a GMC dealership and they are refusing to fix it. The transmission will not shift so I am unable to drive it”
NHTSA complaint #11651369, filed 2025-03Related service bulletins
- 11037555Sep 26, 2026This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- 11037253Sep 4, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11036713Aug 27, 2026This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will…
- 11036196Aug 7, 2026This Preliminary information communicates an issue where an aftermarket autostop device or rear taillights is causing a dead battery.
- 11035350Jul 23, 2026This PI provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area.
- 11035340Jul 21, 2026PI to help diagnose A/C concern
- 11035308Jul 21, 2026This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
- 11035133Jul 17, 2026This PI was created to help avoid unnecessary front camera module replacements
- 11034977Jul 6, 2026The purpose of this PI is to inform dealer technicians of a normal cab pressure relief valve noise to avoid unnecessary part replacement
- 11034767Jun 24, 2026This Preliminary information communicates information on a hydraulic rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic…
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 7% |
| 2025 | 6 | 21% |
| 2024 | 13 | 12% |
| 2023 | 2 | 6% |
| 2022 | 6 | 13% |
| 2021 | 3 | 6% |
| 2020 | 18 | 23% |
| 2019 | 2 | 6% |
| 2018 | 5 | 14% |
| 2017 | 6 | 16% |
| 2016 | 7 | 12% |
| 2015 | 8 | 9% |
| 2014 | 7 | 23% |
| 2013 | 14 | 30% |
| 2012 | 7 | 23% |
| 2011 | 9 | 14% |
| 2010 | 4 | 40% |
| 2009 | 2 | 6% |
| 2008 | 9 | 14% |
| 2007 | 9 | 11% |
| 2005 | 3 | 3% |
| 2003 | 2 | 1% |
| 2002 | 3 | 2% |
| 2001 | 5 | 4% |
| 2000 | 1 | 2% |
Other parts of the 2020 GMC Sierra 2500
25 complaintsBrakes
13 complaintsElectrical system
13 complaintsEngine
10 complaintsSteering
6 complaintsBody and structure
6 complaintsForward collision avoidance
5 complaintsVehicle speed control
4 complaintsEngine cooling
2 complaintsExterior lighting
2 complaintsFuel system
2 complaintsTires
2 complaints
← All problems reported for the 2020 GMC Sierra 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology