2025 GMC Sierra 1500 Engine cooling Problems
- Complaints
- 3about this part
- Share
- 2%of 124 total for the year
- Median mileage
- 21,100miles
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 3 complaints about the engine cooling of the 2025 GMC Sierra 1500, 2% of the 124 complaints for this model year. Where a mileage was given, the median is 21,100 miles.
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.
“The contact owns a 2025 GMC Sierra 1500. The contact stated that while driving at 35 MPH, there was an abnormal knocking sound coming from the engine. No warning lights were illuminated. The vehicle was towed to the dealer, where it was diagnosed with a rough idle code, and that the thermostat coolant housing had failed. The contact was provided DTC codes: B1A76 with failure Code 0X15 (pending), P05D, U0075, U0101, U0146, U020C, U0265, U1614, and U1616, and the codes were active. The vehicle was repaired. …”
NHTSA complaint #11709368, filed 2026-01, 18,000 miles“The contact owns a 2025 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the engine made abnormal knocking sounds. No warning light was illuminated. The vehicle was taken to the dealer, who discovered metal shavings inside the engine oil and determined that the crankshaft bearings had failed. The contact was informed that the engine needed to be replaced. The vehicle was not yet repaired and remained with the dealer. The manufacturer was made aware of the failure. The failure mileage was 26,634.”
NHTSA complaint #11731504, filed 2026-04, 26,634 miles“The contact owns a 2025 GMC Sierra 1500. The contact stated that while at a stop light waiting to make a left turn, the vehicle stalled. The vehicle failed to restart. No warning lights were illuminated prior to the failure. The contact stated that the failure was related to NHTSA Campaign Number 25V274000 (Engine and Engine Cooling). The vehicle was towed to the local dealer to be diagnosed, and the contact was informed that the engine had seized. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 21,100.”
NHTSA complaint #11678734, filed 2025-08, 21,100 milesEngine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 3 | 2% |
| 2024 | 31 | 8% |
| 2023 | 23 | 5% |
| 2022 | 29 | 5% |
| 2021 | 49 | 8% |
| 2020 | 21 | 4% |
| 2019 | 26 | 4% |
| 2018 | 6 | 2% |
| 2017 | 2 | 1% |
| 2016 | 3 | 1% |
| 2015 | 1 | 0% |
| 2014 | 5 | 1% |
| 2012 | 1 | 1% |
| 2011 | 2 | 1% |
| 2010 | 4 | 2% |
| 2009 | 4 | 2% |
| 2008 | 1 | 0% |
| 2007 | 7 | 3% |
| 2006 | 3 | 2% |
| 2005 | 8 | 5% |
| 2004 | 8 | 4% |
| 2003 | 3 | 2% |
| 2002 | 2 | 1% |
| 2001 | 3 | 2% |
| 2000 | 5 | 3% |
| 1999 | 6 | 4% |
| 1998 | 3 | 5% |
| 1997 | 1 | 1% |
| 1996 | 1 | 20% |
Other parts of the 2025 GMC Sierra 1500
59 complaintsTransmission and drivetrain
28 complaintsElectrical system
26 complaintsOther or unknown
15 complaintsForward collision avoidance
11 complaintsBrakes
7 complaintsFuel system
7 complaintsVehicle speed control
7 complaintsVisibility (wipers, defrost, mirrors)
7 complaintsBack-over prevention (rear camera)
6 complaintsLane departure
4 complaintsExterior lighting
3 complaints
← All problems reported for the 2025 GMC Sierra 1500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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