Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2017 GMC Yukon owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2017 GMC Yukon Denali. The contact stated while driving 70 MPH, the trailer brake system service warning light illuminated. The contact stated that the trailer brake system warning light illuminated several times within a minute. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 152,498.
So the shock strut system up front has a grommet that holds it in. The repair order said they put a shock simulator in the car and it gave false reading saying it was good and it came out broke break line and caused me to jump a curve to stop the vehicle. ALSO Now the THE TAIL LIGHT IS OUT AND NO WAY TO REPAIR IT NO ONE HAS THE LIGHT. Also this car is on its third transmission
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. …
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 1200.00 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 …
The vehicle main information cluster randomly goes in and out and now has completely stopped working. This is the information display that shows Park, Nuetral, Drive, Reverse, Fuel gauge, digital MPH and other information such as oil tire pressure, turn signals, forward collision. Just knowing if the vehicle is in Park Reverse or Drive is a huge saftey issue. This seems to be a common problem on GM vehicles and i wcan't seem to find a recall issued for the saftey factor that the vehicle can be assumed to be in Park and it's actually in Reverse. The first time I noticed this problem was Sept. 05, 2020 but it had reset when I restarted the vehicle. The problem would resurface occasionally but always came back on when restarting the vehicle. But know it seems that restarting the vehicle is not fixing the problem and the screen has been blank for the last 3 days.
Tail lights went out. Lifters have been replaced TWICE! While stopped at red light, at take off the vehicles lunges forward. At low speed the vehicle will down shift on it's own. 80k miles Recently while headed to work, the torque converter went out. 126k This is suppose to be a luxury vehicle and cost entirely to much to be a POS. I honestly thought I had a lemon but it seems to be a reoccurring issue in the entire fleet.
2017 Yukon Denali manufactured in 2016. It requires the exact same repairs as the 2016 service bulletin N192291660. My Transmission wiring Harness must be replaced including the gasket and filter. The Global Safety Feild Investigation DCS5461 only included 2016 and not car manufactured in 2016 and labeled as 2017. I have the exact same error codes p0711. The Global Safety Field Investigation was issued in July 29, 2020.
The information screen on the gauge cluster sometimes will stop working. This is dangerous as It is the only part that shows if the vehicle is in Park, Reverse, Nuetral, or drive. It also is the only part that shows the vehicles fuel level, blinker, cruise control, temperature and other warnings and controls. This is a common problem for the 2015- xxxx Yukon and Tahoe.
Tranny failed at 92k miles even though properly maintained. Since new tranny installed by dealer (out of pocket cost) had to return due to tranny slipping into neutral when driving highway speeds and taking foot off gas. Dealer performed TCM and ECM flash updates. Cost out of pocket for programming. Issue came back less than 2000 miles later
The retractable side steps on the passenger side retracts while still getting into the vehicle. It almost catches the entire foot in the door. It's a safety hazard for my children and parents. It is currently an out of pocket expense and my vehicle has less than 55000 miles on it. It has happened multiple time including today.
Electrical complaints in other Yukon years
Frequently asked questions
How common are electrical problems on the 2017 GMC Yukon?
NHTSA has 22 complaints about the electrical system of the 2017 GMC Yukon, 11% of the model year's 208 complaints. The component named most often is integrated trailer brake control (1 mentions).
Is there a recall for 2017 GMC Yukon electrical problems?
No. NHTSA lists no electrical system recall for the 2017 GMC Yukon, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2017 GMC Yukon electrical problems start?
Half of the complaints with a recorded mileage happened before about 75,000 miles, and 25% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 0 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.