GMC Sierra problems
0 safety recalls. 786 owner complaints. We mapped every trouble spot before you sign the papers.
Average for the segment. Some recurring trouble spots worth knowing about.
Top trouble spots 8 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
Steering Suddenly stops working when making a turn and have no control of the steering . Happen 3 times yesterday almost was in a accident. Then starts working again.
REAR SLIDING GLASS WINDOW DEFOGGER CONTACTS ARE SMOKING AND MAKING SIZZLING NOISE. FIRE HAZARD. HAD TO REMOVE FUSE NUMBER 10 FROM ENGINE BLOCK TO PREVENT AUTO START FROM ENGAGING REAR DEFOGGER IN COLD WEATHER, OR TO PREVENT DEFOGGER SWITCH FROM BEING ENGAGED BY FAMILY MEMBER.…
USED THE REMOTE START TO WARM THE TRUCK UP. GOT IN AND WAS LEAVING MY DRIVEWAY AND THE REAR WINDOW EXPLODED. READ DEFROST WAS ON SINCE WE RECEIVED 6+ INCHES ON SNOW TODAY.
4 MONTHS AGO THE DISPLAY PORTRAYED A MESSAGE STATING, TRAILER BRAKE WARNING, HAVE SYSTEM CHECKED. SINCE THAT TIME I HAVE ATTEMPTED ON NUMEROUS TO HAVE MY VEHICLE CHECKED. BUT AS OF THIS DATE I HAVE NOT BEEN TO HAVE ANY DEALERSHIP LOOK AT MY VEHICLE. I HAVE BEEN TOLD BY…
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Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Common questions
Is the 2015 GMC Sierra reliable?
It's got known weak points. With a reliability score of 6.8 out of 10 based on 786 owner complaints filed with NHTSA, the 2015 GMC Sierra has a higher-than-average rate of reported issues. The areas to watch are listed above. Whether it's worth owning depends on price, condition, and how much repair exposure you can absorb.
What's the most common problem on the 2015 GMC Sierra?
Based on NHTSA records, the most-reported issue is brakes, with 205 complaints filed. Average repair cost runs about $450 at an independent shop.
What's the most expensive thing that goes wrong?
The brakes is one of the costlier repair items. Average repair cost runs about $450 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my GMC Sierra has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2015 GMC Sierra?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 786 complaints on file and the costliest repair averaging $450, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans aren't always better value.