2015 GMC Sierra 1500 problems & reliability
717 owner complaints filed with NHTSA for the 2015 GMC Sierra 1500, alongside 9 safety recall campaigns. Last verified Sep 22, 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 components.
7 complaints report injuries (11 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Service Brakes → | 219 | 31% |
| Power Train → | 97 | 14% |
| Electrical System → | 96 | 13% |
| Exterior Lighting → | 93 | 13% |
| Engine → | 83 | 12% |
| Steering → | 81 | 11% |
| Unknown / Other | 67 | 9% |
| Air Bags → | 37 | 5% |
| Structure → | 28 | 4% |
| Visibility/wiper → | 19 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 24 reported components →Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Among the 430 complaints that included a usable odometer reading, the median reported incident mileage was 50,000 miles (middle 50% between 30,744 and 75,000 miles).
Complaints by incident year
What owners report
“Power steering seems to be lost for a second or two at low speeds turning. Happens multiple times a day.”
Power Train · filed Sep 10, 2026
“My 2015 GMC Sierra 1500 recently started having all the symptoms under GM internal recall number 18289. I lose my power steering briefly and the electronics turn off momentarily. I lose dash, AC, radio and GPS. It comes back on within a second or two and only does this during low speed turning. I ran my VIN but it…”
Steering · filed Aug 31, 2026
“From time to time since I got the vehicle, the lights flicker inside and out. I've had the alternator changed but it continues. Then when pressing the lock button on the key fob the horn sounds as if it has a shortage. Sometimes its loud and sometimes it's barely heard.”
Electrical System · filed Aug 20, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Desiccated Air Bag Inflator Rupture
Engineering Analysis EA21002 · opened Sep 17, 2021 · open
- Brake Vacuum Pump Failure
Preliminary Evaluation PE18012 · opened Nov 20, 2018 · closed Apr 10, 2022 · led to recall 19V645000
Technical service bulletins
1,439 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2015 GMC Sierra 1500. The 10 most recent:
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902W · Service Bulletin/Repair Instructions · issued Sep 4, 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 provides diagnostic tips for diagnosing electric trailer brakes issues.
PIT5509M · Service Bulletin/Repair Instructions · issued May 14, 2026
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
PIT3271Q · Service Bulletin/Repair Instructions · issued Apr 1, 2026
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
PIP6104 · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902V · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information communicates an issue with aftermarket LED headlights causing IPC warning messages and MIL along with several low speed lan DTCs.
PIT6483 · Service Bulletin/Repair Instructions · issued Feb 5, 2026
This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier…
PIT6400A · Service Bulletin/Repair Instructions · issued Jan 16, 2026
This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
PIP5700G · Service Bulletin/Repair Instructions · issued Jan 12, 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
The 2015 GMC Sierra 1500 has 9 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
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 2015 GMC Sierra 1500?
- · 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.
- · Among complaints with usable mileage, the median reported incident mileage was 50,000 miles. This does not predict when a particular vehicle will develop a problem.