2016 GMC YUKON Complaints

Driving a company vehicle [XXX], heavy smoke started coming from under the drivers side dash. Unhooked battery, the smoke stopped. I had vehicle towed to a local garage. They advised the engine wiring harness and other wiring had caught on fire. They couldn't repair it. On [XXX]. I had the vehicle towed to the local GMC dealer in Bedford, VA. At first they said they could fix it, then around 7/3/24 they said the couldn't fix it, charging several hundreds of dollars. On July 5/2024 I had the vehicle towed to a GMC dealership in Lynchburg, VA who I had check with and said they could fix it. The first part of September 2024, this dealership advised me the couldn't fix the vehicle. I had the vehicle tow to our companies office in Lynchburg. The dealerships are saying they can't get the needed wiring harnesses. Our insurance company had sent an adjuster to the GMC in Bedford, VA. No warning lamps came on before the smoke. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The engine failed and dropped down to limp mode while driving down the Hwy. Had to replace the engine for a toll of approx. $10,000. Truck only had 89,000 miles on it.

The car has all of a sudden had issues with the gas and breaking. When I press the gas, it stalls then rapidly accelerates. It has to be the transmission. Also, is making a noise and will barely drive when pressing on the gas. It does not accelerate!! Could have easily gotten into a car accident! What is going on??

The contact owns a 2016 GMC Yukon Denali. The contact stated while driving at various speeds, the transmission was slipping between gear. The vehicle was taken to the dealer; however, the failure could not be duplicated. The dealer replaced the transmission fluid twice; however, the failure recurred. The vehicle was taken to the dealer, where it was determined that the transmission wiring harness had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 65,000.

Driving back from Las Vegas for a family trip, traffic was heavy, a lot of stop-and go. I started to feel the brakes delay to stop. After a few minutes I was able to pick up a little speed and again traffic was built up. This time the brakes failed and got stiff. I had to slam on the brakes and practically stand up on the brakes in order for the car to stop. I barely avoided wrecking into the car in front of me. I was a few hours away from home and had to drive all the way with this problem. When I got home I took it in to the nearest dealer shop to get the brakes checked . I looked online and found out about the recall on the brakes.

Loses power randomly. More prominent at low speeds and turns. Has lost power going down the road, will turn back on. Stabilitrak lights and jerking steering wheel are more common. Will not always start right back up when it shuts all the way off/loses power. Loses clock but keeps radio stations. Had it scanned. Asked dealer about issues/recalls and information with nothing more than “this is not common” and “we need to schedule a time for you to bring it in”. Times were not soon and they made it seem like it is not an urgent/emergent situation. Would not agree to me being able to talk with a tech. Looked into this as it seems common but nothing definite. Bad battery cables seem prominent, grounding issues, electronic steering module, and a few others. Seems like a GM problem that is known but not being handled. Greatly disappointed after reading up on it. Many vehicles with similar problems had recalls. Not sure how that process works. I was told it depends where it was manufactured/assembled. Wife was able to get a video of it the other day.

When driving through Eugene brakes suddenly got soft while at a stoplight, then pedal got stiff and very hard to keep pressed. An alert came on the dashboard 'Brake Assist Service' just about the same time the brake pedal changed and car would not fully stay at a stop. When checking to feel what had just happened, by letting up and repressing the brakes, it would not fully stop car, even with all my strength pressing. If another car would have been coming through, my young son or myself could have been killed or seriously injured and I could cause someone seriously to be hurt or killed from being in their lane of travel. I alerted my husband that I was unable to drive the vehicle safely, he is in the vehicle industry and looked up online and found there is a common known problem, recalls, and service bulletins, but apparently not for vehicle years prior to 2017, although this severe failure is seen on 2014 and later; and the manual tests/diagnostics that a person can do in a pinch per the bulletin, recall notice, and articles; and in his trials of how to tell if it is a failure or fleeting problem - nothing alleviated it, all the symptoms are present and system is failing and continually bringing up the brake assist service alert. This is the info that we found on the recall, but didn't appear to cover 2016 year models: [NHTSA campaign number: 20V603. GM's own number for this recall is N202300860.] We plan to get this yukon over to Guaranty Chevrolet in Junction City Oregon tomorrow 10/8. The only thing that has been very recently noticeable preceding this in recent week or so is a slight uneven braking feeling in the motion of the car when coming to a stop. Which it has not done before.

While taking my children to school, the vehicles RPMs began to jump, causing the vehicle to lose power. Which resulted in myself and two children stranded on the side of the road. The vehicle had just crossed over 110,000 miles when the transmission completely broke apart from the inside. There was no other warnings or lights that appeared on the dash prior to or after. We had been given an estimate from GM for $6200 for a new transmission.. but that was extremely difficult to afford. We ultimately had to have the transmission rebuilt due to it costing $3,000 less, so we could continue going to work. We are still having issues with the transmission even after taking to back for a 2nd time to be reprogrammed. It’s extremely frustrating to have paid so much for this Yukon to have transmission go out with as many miles as it did, plus with no warnings.

Having to replace an engine at one hundred and three thousand miles…not something I would expect

Transmission constantly jerks taking off under normal operating conditions from a stop, has a hard time staying into gear (hunts for gear) while cruising at highway speeds.slips/slams into gear when attempting to pass.