2025 GMC Sierra 2500 problems & reliability
25 owner complaints filed with NHTSA for the 2025 GMC Sierra 2500. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Steering | 7 | 28% |
| Service Brakes | 6 | 24% |
| Engine | 4 | 16% |
| Power Train | 3 | 12% |
| Unknown OR Other | 3 | 12% |
| Equipment | 2 | 8% |
| Structure | 2 | 8% |
| Suspension | 2 | 8% |
| Exterior Lighting | 1 | 4% |
| Fuel/propulsion System | 1 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
What owners report
“My 2025 Sierra 2500HD repeatedly displays “Trailer Brakes Disabled—Service Required” with a lithium- and solar-equipped trailer. The truck passes the EL-52641 simulator, but the failure occurs intermittently while towing and resets after Park or reconnecting the trailer. This closely matches the…”
Service Brakes · filed Jul 27, 2026
“Power steering pump failed when decelerating after 9500 miles. When power steering pump fails, power assisted braking also fails. Upon deceleration, I could not turn the steering wheel at all or stop the vehicle without extreme pressure on the brake pedal. I narrowly avoided impact with a concrete barricade at the…”
Service Brakes · filed May 2, 2026
“Reverse lamps are not bright. Camera does not brighten area either. Very unsafe to reverse in the dark. Have to touch the brake pedal to be able to see while backing. Also have tried the LEDs in the mirrors while backing- although the LEDs are bright- lights to see while backing are insufficient on the stop lamps.”
Exterior Lighting · filed Apr 22, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
352 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2025 GMC Sierra 2500. The 10 most recent:
This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating.
PIT6110K · Service Bulletin/Repair Instructions · issued Jul 28, 2026
This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. During the update…
N26-F163BX · Over The Air · issued Jul 28, 2026
This PI communicates diagnostic information to assist Technicians with a possible transmission shudder
PIP6060A · Service Bulletin/Repair Instructions · issued Jul 24, 2026
This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.
PIT6446A · Service Bulletin/Repair Instructions · issued Jul 24, 2026
This PI provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area.
PIT5680B · Service Bulletin/Repair Instructions · issued Jul 23, 2026
PI to help diagnose A/C concern
PIT5099J · Service Bulletin/Repair Instructions · issued Jul 21, 2026
This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
PIT5509N · Service Bulletin/Repair Instructions · issued Jul 21, 2026
This PI was created to help avoid unnecessary front camera module replacements
PIT6473F · Service Bulletin/Repair Instructions · issued Jul 17, 2026
The purpose of this PI is to inform dealer technicians of a normal cab pressure relief valve noise to avoid unnecessary part replacement
PIT6532 · Service Bulletin/Repair Instructions · issued Jul 6, 2026
This preliminary information communicates an issue with aftermarket LED lighting causing false front park assist alerts and dealers are to install the factory lighting before performing any in depth diagnostics.
PIT6531 · Service Bulletin/Repair Instructions · issued Jun 29, 2026
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 2025 GMC Sierra 2500 in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2025 GMC Sierra 2500?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.