1.)Rear Brakes are not functioning properly. They still have pads but when you press down to pump the brake it fails. I was told by a mechanic that they other GMC vehicles have had recalls on this, but mine is not showing one. 2.)The suspension on this vehicle has never worked properly. It rides extremely rough. It has some special suspension in it from a shock perspective, but it feels as if it often fails. 3.) I had to replace the torque converter in this vehicle last year, and the fluid that runs through it. Apparently this is a known issue with no recall. 4.) the transmission slips when the vehicle shifts gears. It shifts hard. Also a known issue with no recall.

- Tallahassee, FL, USA

Driving down the highway and brake pedal became hard to push down almost causing us to wreck. Keep seeing there was a recall for the brake vacuum pump and also brake assist warning came on. Also when driving low speed like in parking lot it takes a while for vehicle to come to a complete stop

- Fort Walton Beach, FL, USA

Tail Brake Light failure The tail brake lights have gone out on a vehicle that isn't 10 years old yet. Tail lights should not go out this quickly and the dealership will kindly replace them at $1300 per tail light. This is absolutely absurd! It is available for inspection. This definitely puts myself and others at risk! Yes, this problem has been confirmed and inspected by a GMC dealer. Advised this is a very common problem with this vehicle. There are no warning lamps or messages to alert when the brake lights have gone out. Instrument Cluster failure The instrument cluster is also faulty in this truck. This is the 2nd time within a year that i have had issues with this. Safety concern is that you will not know if the vehicle is running hot because the gauges stop working. Also runs the battery down as the fan continues to run for about 10 minutes after the vehicle is turned off. Yes, the problem has been confirmed and inspected by a dealer. Advised that this is a very common problem with this vehicle. No, there are no warning lamps or messages to alert you of the problem. You just notice a different noise while driving, the gauges stop working and then when you turn it off, the fan continues to run.

- Columbia, SC, USA

After a 7 hour drive on freeway brakes failed to stop vehicle. I had to have it towed to repair shop for a complete brake job for $1800. Vehicle seemed to be fixed so drove it back home another 7 hours and the exact some problem happened again while parking in my garage.

- Lubbock, TX, USA

I purchased a 2017 GMC Yukon Denali brand new off the showroom floor. I have maintained the services thru GMC dealership. I had to replace the struts and rear and front shocks due to hydraulic system leaking and locking up my brakes and causing extra pressure on my braking system to stop my vehicle. This cost me over $5000 to replace out of my pocket and I saw there was a previous recall in 2019 for similar problem but i was told my issues were not covered under the recall. I have also had to replace both taillights within 2years of purchasing my brand new vehicle and now they are out again. This will be my second time having to replace the LED tail lights that cost over $375 light which were stated as never go out of lifetime guarantee. You cannot just replace the bulb you have to replace the whole tail light which takes weeks to come in and then additional labor costs. The previous

- Mandeville, LA, USA

Presently my air conditioner in my 2017 Yukon Denali has went out around 55 thousand miles approximately.We called to make appointments many times & after several attempts finally my car was early one morning & left until about 4:30;no one called to tell my husband not myself that their machine was not working.So no I-??m order to wait for another appt !Today June 27th they are finally checking my air conditioner.I received a call saying this would be $1200 dollars!I bought this car with 23 miles on it and 6 MONTHS AFTER I DROVE IT I TOLD MY HUSBAND SOMETHING DI NOT SOUND RIGHT NOR FEEL RIGHT.We tried to make Many appts for 3 years UNTIL GMC FINALLY ADMITTED THERE WAS A RECALL!!Im furious.My vechile would cut off in the middle of a main Hwy with my 9 year old with me.Automatic brake will stop me at 55 mph ;for no reason.Windows down sound like you are in a wind tunnel !!Sun roof leak.Middle console latch just stopped working.ENGINE PROBLEM STILL NOT FIXED & UNDER LEMON LAW AFTER 3 attempts, & with all the lies many GMC LOCAL DEALERS HAVE TOLD ME DUE TO JUST NOT WANTING TO ADMITT THE TRUTH.I feel unbelievably frustrated.

- Longs, SC, USA

Low speed breaking failure.

- Pelham, AL, USA

-Back brake light system failure. -Safety of a rearend accident compromised when tail light does not work properly. -Yes, a repair shop confirmed the $975 unit needs to be replaced and is on back order for one month putting our safety at risk. -No warning has appeared. A person behind me reported it to me.

- Cairo, GA, USA

Water in 3rd brake light

- Lebanon, IL, USA

Brake light not working.

- Lebanon, IL, USA

2017 GMC Yukon Denali 4WD. Rear passenger brake light intermittently fails while driving Confusing and causing motorists behind my vehicle to receive inconsistent intermittent brake warning lights to alarm other motorists I have stopped. Someone is going to end up slamming into me because of this. It-??s a dangerous common failure that needs to be address ASAP. I-??m not waiting but GM-??s executive corporate office will get the entire bill plus time lost and another BBB review.

- Blythewood, SC, USA

Brake lights intermittently work. Will come on sometimes and then go out. This happens when the car is still and while moving.

- Greensboro, PA, USA

Driver side rear brake light isn't working anymore. 46K miles on a 2017 GMC Yukon.

- Abingdon, MD, USA

Brake light failure. Brake lights work inconsistently. Changing the bulb does not fix the problem. This is an electrical issue that has been reported by numerous owners. This is a safety hazard as the components have to be repaired by a technician which causes hundreds of dollars, per light. This is a defective product that should be recalled!!!

- Lakeland, FL, USA

Both brake lights stopped working at the same time. There is no fuse. Online reports show many people with the same very dangerous, huge safety issue of their brake lights failing. The car 3 years 2 months old.

- Fairfax, VA, USA

The brakes stop working. Brake assist comes on. When I press the brakes you can feel the pump is not working at all. This is happening at slow speeds mostly in parking lots but in fear of it happening when going faster. This needs to be fixed asap- dangerous to drive my children around in a car where the brakes just stop working.

- Florence, KY, USA

Irregularities when brake is pushed at low speeds. Can feel various issues such as vibrating brake pedal, stuttering noise, loss in pressure of brakes and needing excessive pressure on brakes to stop vehicle. This has happened 2-3 times now, once in a parking lot, in a drive thru and when pulling out/in the garage.

- Derby, KS, USA

Driver side rear tail/brake light goes out when open and close rear hatch. Passenger side rear has same issue which was recalled and repaired. Tap the rear quarter panel or hit a bump tail light will turn off or on.

- Aynor, SC, USA

While pulling into a parking space, the brakes shuttered and they wouldn't hardly work. Almost couldn't get the vehicle stopped. A warning on my dash said "service brake assist." There was a recall issued in Canada but non here for my vehicle so far. This is a dangerous safety hazard that needs to be fixed. GMC needs to establish a recall as soon as possible.

- Hubert, NC, USA

After sending my SUV for the brake recall(the brakes actually failed while I was driving) last month, my brakes failed again while driving out of my driveway, on Wednesday 8/19 -on my way to work.. I drove straight to the dealership. Basically having to hard push the brakes on city streets stop lights etc. Scary. Yesterday, 8/20 they told me the car was fixed. On my way to the dealership 30 min away, they tell me after driving the vehicle, that brake indication came on the screen and they will need to keep it for my safety. As of now no word on it being corrected, and quite honestly not feeling safe about diving the car.

- Ormond Beach, FL, USA