2015 GMC Sierra Engine Problems
- Complaints
- 2about this part
- Share
- 4%of 53 total for the year
- Median mileage
- 85,002miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2015 GMC Sierra, 4% of the 53 complaints for this model year. Where a mileage was given, the median is 85,002 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 2015 Gmc Sierra. The contact stated that while descending down hill at night, the low beam head light provided poor visibility. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 5. Updated 03/30/15 updated 06/23/2015”
NHTSA complaint #10690231, filed 2015-02, 5 miles“The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 65 MPH, there was a loud pop in the engine compartment. The vehicle was steered to the side of the road where condensation was observed in the middle of the road. The vehicle was towed to a dealer where it was diagnosed that the radiator and transmission needed to be replaced. The vehicle was not repaired. On another occasion, while driving at approximately 20 MPH, the vehicle lost motive power. The vehicle was towed to a dealer where it was determined that the engine needed to be replaced. The vehicle was repaired. …”
NHTSA complaint #11565112, filed 2024-01, 170,000 milesRelated service bulletins
- 10113325Jan 12, 2017This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction…
- 10100822Jul 11, 2016This informational bulletin provides the technician with what may happen to an engine due to lack of maintenance.
- 10095901Feb 9, 2016This preliminary information communication provides information to the technician about vehicles that may have a cold engine tick noise for 50 seconds at start up. Technician…
- 10112272Jan 14, 2016This informational bulletin provides information on close coupled converters and there affect on newly installed engines or engines during there break in period.
- 10059095Aug 1, 2015General motors: in some vehicles and trucks, when transferring intake manifold to replace an engine long service block, due to internal damage, extreme caution must be taken for…
- 10059068Aug 1, 2015Chevrolet/gmc: on trucks/suvs after having an oil and filter change, the pressure for oil is low and ses light had diagnostic trouble code (dtc) p0521 appear. Model 2014-15…
- 10059065Aug 1, 2015Gmc/chevrolet/cadillac: information provided on some vehicles and suv, for replacement of crankshaft, for engine repair and oil tank and lines would be replaced on dry sump…
- 10057653Feb 1, 2015Chevrolet/gmc: on some vehicles, accessory drive idler pulley will be replaced due to noise in bearing and pulley may fail and alternator and water pump stop working.
- 10056836Dec 1, 2014Chevrolet: vehicle experience rough idle and vibration at idle in gear. Which may also be described as low idle.
- 10112253Sep 25, 2014This Preliminary Information communication provides information to the technician about vehicles that continue to running after the engine is shut off. Technician should check…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2017 | 4 | 7% |
| 2015 | 2 | 4% |
| 2014 | 8 | 8% |
| 2013 | 3 | 8% |
| 2012 | 5 | 17% |
| 2011 | 7 | 16% |
| 2010 | 2 | 6% |
| 2009 | 3 | 8% |
| 2008 | 1 | 1% |
| 2007 | 2 | 3% |
| 2005 | 8 | 7% |
| 2004 | 5 | 3% |
| 2003 | 3 | 1% |
| 2002 | 3 | 1% |
| 2001 | 1 | 0% |
| 2000 | 1 | 0% |
| 1997 | 1 | 0% |
Other parts of the 2015 GMC Sierra
30 complaintsSteering
6 complaintsTransmission and drivetrain
6 complaintsAir bags
4 complaintsBrakes
3 complaintsOther or unknown
3 complaintsFuel system
2 complaintsSeats
2 complaintsBody and structure
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsElectrical system
1 complaintsEngine cooling
1 complaints
← All problems reported for the 2015 GMC Sierra
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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