2017 GMC YUKON Complaints

Sitting at stop light engine began running rough and smoke coming out. CEL came on and began flashing, pulled over and had it towed. Diagnosis was PO300 misfire, dead miss on cylcinder 4, cylinder plug 4 is fuel fouled, cois is fine has good spark- caused by failed lifters. Needs engine replacement. Vehicle always serviced, garage kept and in mint condition with 89K miles.

The contact owns a 2017 GMC Yukon. The contact stated that the lifters were previously replaced in 2021 at the manufacturer's expense. Additionally, the contact stated that while driving at various speeds, the engine was running rough. The vehicle was taken to an unknown auto part store, where it was diagnosed with an engine cylinder malfunction. The vehicle was taken to an independent mechanic, where it was determined that the engine had experienced lifter failure or a more severe failure. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the vehicle needed to be diagnosed by the dealer, and that the manufacturer might help in covering the cost of the repair. The contact related the failure to NHTSA Action Number: EA25007 (Engine, Engine and Engine Cooling). The failure mileage was approximately 81,638.

The contact owns a 2017 GMC Yukon XL. The contact stated that the check engine warning light was illuminated. The contact stated that while idling, the vehicle started shuddering violently. The contact stated that while driving to the residence at an undisclosed speed, the vehicle stalled and failed to restart. The vehicle was pushed into a church parking lot. The contact's father used a scanner to scan the vehicle, and a DTC for engine misfire was retrieved. The contact's father replaced the spark plugs, but the failure persisted. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the engine was blown. The vehicle was then towed to another independent mechanic, where the engine was replaced. Additionally, the contact stated that upon depressing the brake pedal, the brake pedal was stiff and required to be pumped several times for the vehicle to respond as intended. The contact stated that the failure occurred while starting the vehicle and while driving at various speeds. There was no warning light illuminated. The contact stated that the brakes had been replaced annually, but the failure persisted. The contact stated that the brake pedal shuddered upon starting the vehicle. The contact received a notification for ABS from the OnStar Mobile App. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 148,246.

On July 3, 2025 we were traveling on a 4 lane at 55mph. Without any prior symptoms, the vehicle began to shake violently. It shook so hard that the skid warning light simultaneously came on. It was followed by the check engine light. The oil pressure guage started bouncing around. We stopped driving the vehicle and had it towed to VanYork GMC dealer in Asheboro, NC on this same day. (Invoice attached) VanYork GMC determined that cyclinder 5 was misfiring. We paid to have them repair it, and we began driving the vehicle again. (invoice attached) On or about August 1, 2025 we were traveling on an interstate at 70mph. Without any forewarning, the vehicle began to violently shake. Just as before, the skid warning light simultaneously came on, followed by the check engine light came on, and then the oil pressure guage started bouncing around. As there was heavy traffic on the interstate, the failure created a very dangerous situation for us as we tried to maintain our lane, and stay in control of the vehicle until which time we were able to safely maneuver to the side of the road. The vehicle was again towed to Vann York GMC in Asheboro, NC. (invoice attached) On December 3, 2025 we received a call from VannYork GMC saying that the vehicle repairs were complete. It had been in their repair shop for 4 months. This repair began with lifter and camshaft replacement. When this repair was unsuccessful, they decided that the vehicle needed a 'new' rebuilt engine. Since GMC has not offered any assistance with the expense of this new re-built engine, we will have to satisfy the $12,000 bill when we pick it up. After experiencing two very dangerous episodes, we are happy that we did not wreck, but certainly, this not the situation we expected from a high-end vehicle with only 76,169 miles on it.

At parking lot speeds, there have been many incedents of brake failure, when pressing pedal to stop pedal pulsates and becomes very hard to stop the yukon. there seems to be a vacume or booster issue. Yukon will be fine for days then reaccure when slowing at stop sign or waitng at red light and moving foward in slow traffic to sign or llight and then in happens again. scary and unreliable when using brakes at low speed intersections or continous stop and go's

At stop light vehicle began to sputter, run rough, and make noise. I was less than a mile from my home, no check engine light on. I turned the vehicle off, used a scanner to have codes P0106 and P0506 show. I had vehicle towed to Complete Car Care. Misfire on multiple cylinders, 3 push rods bent, one valve spring broken. The right Cylinder head assembly had to be removed and replaced with 8 new push rods, 8 new lifters, gaskets, seals, and valve spring. Total cost $3304.79, the vehicle only has 69,801 miles on it. In addition one of the rear tail lights has a known issue (found out on google), intermittently goes out, was never notified. I took the car to Jim Hudson GMC to be told it would cost $475 plus tax because I did not come in early enough even though it is to be warranted up to 70,000 miles. I am greatly concerned that this engine has the same manufacturing defects of the current recall and extended recall for the GMC Yukon Denali engines.

At stop light vehicle began to sputter and make noise, I was very close to my home, no engine light on. Upon turning vehicle off and using a code reader codes P0106 and P0506 was on scanner. I had vehicle towed to Complete Car Care. Mis fire on multiple cylinders. Vehicle has 69,801 miles. 3 push rods bent and I valve spring broken. The right Cylinder head assembly had to be removed and replaced with 8 new push rods, 8 new lifters, gaskets, seals, and valve spring. Cost was $3304.79. In addition the rear tail light has been sporadic on and off, GM was to replace up to 70,000 miles. When I took it to them they stated the time limit had expired, yet I had not been informed until I did a google search. GM requesting $475 plus tax. I am concerned my vehicle has the same manufacturing defects as the GM motors being recalled with total engine failures.

We noticed the passenger side taillight was out. It’s not a simple bulb replacement but an entire assembly. It was put back in place and it lit up again. A few weeks later it wasn’t working. Pounded and tapped on it and it works again. We're guessing there is some sort of short so we asked for an estimate on getting an assembly replacement when it was in for a regular oil change. Shocked that a necessary part would cost $1,112.77!!! Whatever happened to changing a bulb for a few dollars?

The contact own a 2017 GMC Yukon. The contact stated that the vehicle failed to shift from 2nd to 3rd gear while driving and remained stuck in gear. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was notified of the failure and informed the contact that assistance would not be provided because the warranty had expired. The failure mileage was approximately 78,000.

WHEN I BOUGHT THE YUKON 3 YEARS AGO THE TRANMISSION WENT OUT WITHIN MONTHS, THEY REPLACED IT WITH A USED ONE, NOW IT IS STARTED TO DO THE SAME THING, IT WILL SLIP IN AND OUT OF GEAR, WHEN YOU GIVE IT GAS IT WILL JUMP INTO GEAR AT AN IDLE IT WILL DROP OUT OF GEAR, IT'S BEEN DOING THIS EVERY SINCE THEY PUT THE USED ONE IN, I NOITIED THEM THEY SAID THAT IT IS NORMAL???? I HAD THE WORK DONE @ PAHRUMP VALLEY AUTO PLAZA. I'M AFRAID THAT WHEN IM AT A LIGHT IT WILL NOT GO INTO GEAR AND I WILL GET HIT. NO WARING LAMPS CAME ON AT ALL, IT HAS PROGRESSIVELY GOTTEN WORSE.