2023 GMC YUKON XL Complaints

1.The driver side mirror tilts up or down every time the vehicle is started requiring readjustment before driving. My wife was almost hit by oncoming traffic when she did not remember to readjust the mirror before merging with traffic. 2. The driver seat bolster inflates every time the vehicle is started. The vehicle cannot be driven without deflating the bolster. These have been reported to the dealer 3 months ago with no resolution from them or GMC.

Complete engine failure on highway at speeds of 70+. The vehicle was inspected per the recall on this engine and it passed inspection prior to purchasing. The vehicle now needs a complete engine replaced per local GMC dealer.

Drove vehicle to town and back, 20 mile round trip. When entering my property, the Engine stalled while pulling into driveway. Upon cranking, was very hard to start. When taking the next trip after engine stall, vehicle died in motion at 60mph approaching a traffic intersection with no warning, leaving very little time to navigate to the shoulder and off the roadway. Engine will not crank over, suspect Engine has failed again, currently at dealer awaiting diagnostics. No lights, warnings, noises or indications of Engine failure were observed during the drive cycle.

driving 70mph on highway when engine suddenly failed. engine turned off and kicked into neutral. had to pull over on busy highway in a powerless car and have car towed. it is now getting a full engine replacement at 42k miles.

My vehicle was one of the vehicles that was subject to the engine failure recall by GM. I took it to the dealership for the “repair“ where I was told the oil was changed to a different weight. Last night, I was driving down the road and all of a sudden my car just stopped. It still had power, but the engine had stopped. I tried to restart was unable to.

Rear wheel lock up It took two Dealership is going through it's diagnosis but says it needs new valve body upgrade. Been sitting in the shop for 2 months

i had taken care of the recall items in regards to the failing 6.2L engine. I was driving on the highway (going ~70mph) when all of a sudden the car kicked into neutral and the engine shut off. I was able to pull over, but the engine would not turn on. Electronics worked, but I think i had a total engine failure at 42k miles.

ON 2/22/2026 WE WERE DRIVING BACK FROM WEST, TEXAS ON FM 2311 WE WERE TRAVELING AT ABOUT 60 MPH POSTED SPEED LIMIT WHILE WE WERE ENTERING TH ECONSTURCTION ZONE THE VEHICLE SAID START THE CAR WE WERE DRIVING IN THEN I NOTICED WE LOST PROPULSION AND STEERING AND BRAKES WERE VERY DIFFICULT TO HANDLE MY WIFE AND 10 YEAR CHILD WERE IN THE VEHICLE WITH ME. THIS ROAD HAD NO SHOULDERS AND A VERY STEEP DEEP EMBANKMENT ON BOTH SIDES OF THE ROAD. VERY DANGEROUS SITUATION. WE WERE TRAPPED BETWEEN TWO HILLS WITH NO WAY TO STAY SAFE OR GET THE VEHICLE TO A SAFE SPOT TO KEEP TRAFFIC FROM HITTING US OR THE CAR WE HAD TO GO STAND DOWN THE BOTTOM OF THE EMBANKMENT TO TRY AND STAY SAFE AS BEST AS WE COULD. THE LEROY TEXAS VOLUENTEER FIRE DEPARTMENT CAME UP ON US AND WAS ABLE TO BLOCK TRAFFIC UNTIL THE CAR WAS TOWED TO OUR HOME THEN TO FREEDOM CHEVROLET IN FAITFIELD TEXAS ON2/23/2026 ON 2/23/2026 WE MADE A CLAIM WITH GM CLAIM#89328131 AND HAVE BEEN IGNORED BY THEM TOLD THEM A ENGONE REPLACEMENT DOES NOT FIX THE SAFTEY ISSUE PERMANTLY SO I AM REPSPECTFULLY REJECTING THE REPAIR TOLD DEALER NOT TO FIX. WE HAD A RECALL DONE ON 11/17/2025 FOR THIS ISSUE AND IT FAILED US WE COULD HAVE BEEN KILLED OR SEROIOUSLY INJURED. THIS IS A MASSIVE SAFTEY ISSUE WE EVEN ASKED GM FOR A BUY BACK OR A SWAP AND WE CALLED TODAY ON 2/27/2026 AND GM TOLD US JOHN WHOEVER THAT IS WOULD CALL US BACK NEVER CALLED US. GM EVEN ACTED LIKE THEY COULD NOT FIND THE CLAIM NUMBER WHEN I HAVE AN EMAIL ABOUT IT. i AM NOW VERY WORRIED THAT GM WILL TRY TO ERASE ALL THE DATA FROM THE VEHICLE RECORDING DEVICE AKA BLACK BOX. GM MUST BE HELD ACCOUNTABLE I OWN 3 GM VEHICLES WORTH A TOTAL OF ALMOST 300K ALL HAVE A MAJOR SAFTEY RECALL .

my engine was part of L87 engine GMC Yukon Xl 2023 recall, they checked the car at 41,000Miles in aug-sept 2025, then they suggested different oil to be used, they changed the oil and thats it, 5000 miles later my engine died on the high way, it shut off and car seized and shut off on the highway and did not move. I towed it to the GMC dealership, they confirmed the engine is seized, but they have been very secretive, they did not tell me whats wrong, they been some what ignoring me, I dont have a car its been few days, no one reached out to tell me whats happening, no offer to give me a loaner, when I kept bugging me they said we're opening the enigne to send the broken part inside to the GMC headquarters, I asked to know what's the issue what's happening but I'm worried they will do another short cut, I need your help on what to do next

Onstar connectivity module failed after dealer updates. The onstar module controls super cruise hands free driving. Module can fail during use causing accident. Vehicle did not display any warning on display screen. Vehicle is available for inspection. GMC dealer confirmed onstar module failure and is waiting on part delivery for replacement. Several searches in online forums confirm this is an issue for thousands of GMC vehicles.