2015 GMC YUKON XL Complaints

I was dropping my daughter off at school in the car line. I was at low speed trying to brake and with the brake all the way down couldn't stop immediately. I was able to stop but then went to go again and when tried to stop again, couldn't and hit the car in front of me. It was making a sound while trying to brake but wouldn't engage my brakes. Luckily it didn't leave any damage and the other driver said it was OK and accepted my apology as my brakes were not working correctly.

Driver side brake lights don't work again. This will be the 3rd time that I know of that this piece of equipment has been changed out.

Fuel injector is direct injection into cylinder. Excess carbon build-up is endemic with this design causing power loss/decrease, knocking, and potentially increased emissions. Safety factor is loss/decrease of engine power when needed for safe highway driving. This problem is noted in GM literature and technical bulletins. The Malfunction Indicator Light (MIL), also know as the Check Engine Light, illuminated and provided generic malfunction codes via the OBD. Cylinder #7 fuel injector removed and replaced, mechanic inspected the used injector. Heavy carbon build-up noted.

LED Brake Lights fail due to design error typically on both side of the vehicle. I have found multiple reports of a failure on a circuit board that was poorly designed. A copper tracing is very narrow and fractures due to vibration resulting in Brake Light failure. Because the entire module must be replaced the repair costs $800-$900 per side.

Tail lights are not functioning properly. N182180270 was issued due to very common issue but no recall. The special adjustment only covers up to 72,000 miles. I now have 106,000 so not covered? Serious safety issue if brake lights are malfunctioning and GM aware of issue. If technician checking lights and they are intermittently working, then I drive away from dealer and they intermittently no longer work, that is a serious safety issue and a recall should happen. I took my vehicle in for an oil change and on the drive to have serviced I was told by my wife driving behind me that the right rear brake light wasn’t working. I asked tech to check. Technician confirmed but states left isn’t working either. Yet on drive to drop the vehicle for oil change the left was working. And we have a time stamped photo as proof(attached). I had someone tell me right rear brake light was out a couple of years ago but when I had it checked, all were on. So when are they working? When are they not working? And that is why a recall should be issued. correct a faulty design. These aren’t an easy fix of replacing a bulb. The whole unit has to be replaced at $700+ each. How many people are out there driving with these intermittent brake lights? We periodically check our lights to ensure working. But if these lights are on/off intermittently, that does very little good. Scary!

LED brake light on drivers side fails to illuminate (noticed first at about 72,700 miles). Upon further research, this appears to be a recurring issue with 2015-2016 Yukon and Yukon XL vehicles. The LED taillight assembly is a sealed housing and the individual brake light bulbs are not replaceable. There appears to be a design defect that is causing premature failures of these assemblies, which results in a safety hazard because the driver does not receive any notification that the brake lights have failed.

THE CONTACT OWNS A 2015 GMC YUKON XL. THE CONTACT STATED THAT WHILE DRIVING AT AN UNDISCLOSED SPEED, THE CONTACT WAS ALERTED BY HER HUSBAND WHO WAS DRIVING BEHIND THE VEHICLE, THAT THE REAR TAIL LIGHTS WERE INOPERABLE. THE CONTACT WAS ALSO ALERTED BY OTHER DRIVERS THAT THE REAR TAIL LIGHTS WERE NOT FUNCTIONING AS NEEDED. THE VEHICLE WAS TAKEN TO SIERRA BLANCA MOTOR CO. (304 US-70, RUIDOSO, NM 88345, (855) 707-6474) TO BE REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC). THE TECHNICIAN ALSO INSPECTED THE LIGHTS AND STATED IN THE DIAGNOSTIC REPORT THAT ALL LIGHTS WERE WORKING AT THE TIME OF INSPECTION. THE VEHICLE WAS TAKEN TO AN UNKNOWN DEALER FOR THE FAILURE HOWEVER, THE SECOND DEALER WAS UNABLE TO DUPLICATE THE FAILURE. THE CONTACT THEN HAD HER FRIEND, WHO WAS A RETIRED AUTHORIZED GMC TECHNICIAN, INSPECTED THE TAILLIGHTS AND DUPLICATED THE FAILURE. THE VEHICLE WAS THEN TAKEN BACK TO SIERRA BLANCA MOTOR CO. HOWEVER, THE SERVICE ADVISOR INSPECTED THE TAIL LIGHTS BUT OFFERED NO ASSISTANCE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THEY WOULD CHECK WITH THE DEALER TO SEE IF THEY COULD ASSIST WITH THE FAILURE. THE MANUFACTURER LATER INFORMED THE CONTACT THAT THEY WOULD OFFER A 25% DISCOUNT FOR EACH LIGHT TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 61,835.

ISSUE WHEN BRAKING. LOTS OF FORCE NEEDED AT TIMES TO STOP.SEEMS TO OCCUR MORE AT SLOWER SPEEDS.

REAR PASSENGER BRAKE LIGHT FAILURE.. KNOWN ISSUE THAT HAS BEEN NEGLECTED BY GMC.

WHEN DRIVING BETWEEN 40-70 MILES AN HOUR. I FEEL A VIBRATION SOMEWHERE IN THE VEHICLE. THE VIBRATION FEELS LIKE U ARE ROLLING OVER RUMBLE STRIPS. THIS HAPPENS TIME AND TIME AGAIN ON THE HIGHWAY, WHILE IN MOTION ONLY.