NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2015 GMC Sierra. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
THE PROJECTOR HEAD LIGHTS ARE VERY POOR AT BEST. VERY LOW ILLUMINATION. IT IS VERY DIFFICULT TO SEE THE ROAD AT NIGHT. DRIVING IN SOME CONDITIONS IT IS EXTREMELY DIFFICULT TO SEE THE ROAD AND THE SIDES OF THE ROAD. WHEN MAKING A RIGHT HAND TURN THE DRIVER CANNOT SEE ANYTHING ON THE RIGHT. WHEN RAINING THE DRIVER CANNOT SEAT ALL. IT IS LIKE DRIVING A 1960 VINTAGE VEHICLE. THERE ARE MANY COMPLAINTS ON THE WEB. I NOTIFIED GMC ABOUT THIS ISSUE. THE RESPONSE IS THE LIGHTS WORK AS DESIGNED. THIS IS A TERRIBLE DESIGN.THERE WILL BE ACCIDENTS DUE TO THIS ISSUE. GM SHOULD BE PROACTIVE BEFORE THERE ARE FATALITIES. I HOPE THAT NOTIFYING YOU THAT YOU WILL HELP SOLVE THIS. *TR
TL* THE CONTACT OWNS 2015 GMC SIERRA K3500 DENALI. THE CONTACT STATED THAT WHILE DRIVING AT NIGHT, THE HEADLIGHTS FAILED TO PROVIDE ENOUGH LIGHTING CAUSING THE CONTACT'S VISIBILITY TO BE DIMINISHED. AS A RESULT, THE CONTACT WAS ONLY ABLE TO DRIVE THE VEHICLE WITH HIGH BEAMS ON AT NIGHT. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN STATED THAT THE HEAD LAMPS WERE PERFORMING TO FACTORY SPECIFICATION. THE MANUFACTURER WAS MADE AWARE OF THE PROBLEM. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 290.
TL* THE CONTACT OWNS A 2015 GMC SIERRA. WHILE DRIVING AT 45 MPH, THE HEADLIGHTS WERE ENGAGED BUT FAILED TO FULLY ILLUMINATE. AS A RESULT, THE CONTACT'S VISIBILITY WAS DIMINISHED. THE VEHICLE WAS TAKEN TO A DEALER WHO STATED THAT THE HEADLIGHTS WERE NOT ADJUSTABLE FOR LATERAL MOVEMENT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 5.
Data synced from NHTSA on May 4, 2026