2023 GMC Sierra 3500 Other or unknown Problems
- Complaints
- 3about this part
- Share
- 11%of 28 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 3 complaints about the other or unknown of the 2023 GMC Sierra 3500, 11% of the 28 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“We’ve had issues with the electrical system/brake lights when we hook any trailer (horse/boat/utility) to the truck. One issue is that the system shows unconnected and the trailer lights blink or do not work. We’ve brought this in to the dealer 3 times and they have yet to resolve the issue. The other issue of melted plastic on our rear sliding mirror. It just appeared one day, possible after using the rear defog button. We took it to the dealer and they also do not know what is the issue. We found several other blogs where owners have had the same issue. …”
NHTSA complaint #11595266, filed 2024-06“I was driving in the high way and the vehicle started having issues and then it completely shut off and wouldn’t drive or anything in the middle of the highway and the dash said it was reducing power.”
NHTSA complaint #11714077, filed 2026-01“Unknown Truck unexpectedly comes to almost complete stop between speeds of 35 to 55 mph. Occurs more frequently around 40 mph. Truck has been in repair shop and diagnostic can’t explain the problem.”
NHTSA complaint #11549084, filed 2023-10Related service bulletins
- 11038460Oct 7, 2026This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating.
- 11038136Sep 28, 2026This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to…
- 11038132Sep 28, 2026This Preliminary information communicates to dealers a procedure to reset the radio.
- 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.
- 11036392Aug 20, 2026This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
- 11036196Aug 7, 2026This Preliminary information communicates an issue where an aftermarket autostop device or rear taillights is causing a dead battery.
- 11035693Jul 28, 2026This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating.
- 11035354Jul 24, 2026This PI communicates diagnostic information to assist Technicians with a possible transmission shudder
- 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.
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 2 | 12% |
| 2024 | 7 | 14% |
| 2023 | 3 | 11% |
| 2022 | 5 | 16% |
| 2021 | 3 | 15% |
| 2020 | 6 | 12% |
| 2019 | 2 | 15% |
| 2017 | 2 | 15% |
| 2015 | 3 | 10% |
| 2013 | 1 | 7% |
| 2012 | 2 | 22% |
| 2011 | 2 | 10% |
| 2008 | 1 | 4% |
| 2002 | 1 | 5% |
| 2000 | 1 | 4% |
Other parts of the 2023 GMC Sierra 3500
14 complaintsElectrical system
4 complaintsForward collision avoidance
4 complaintsEngine
3 complaintsWheels
3 complaintsBrakes
2 complaintsFuel system
2 complaintsLane departure
2 complaintsTires
2 complaintsAir bags
1 complaintsBack-over prevention (rear camera)
1 complaintsEngine cooling
1 complaints
← All problems reported for the 2023 GMC Sierra 3500
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