What 399 owners told NHTSA about the 2011 GMC Yukon Denali Xl 1500

Recurring System Problems: My vehicle continues to exhibit intermittent system failures, causing unpredictable and potentially dangerous driving conditions. These issues have included: engine stalling, braking issues, electronic system malfunctions].

NHTSA ODI 11638185

There are several incidents reported regarding ongoing assessment with GMC interplay activity I have noticed this have become a dangerous drive ability inside acceleration controls Governor sets whiling driving engine play transmission shifts this have gone beyond everyday practices during drive times this have been very noticeable during anyone time RPM gauges constantly disrupted radio functions remote controls are at play many problems are being serious illegal assessed during drive compulsive fuel guagement.I have been placed at dangerous risk by interplay noticability. Now slight tick sounds after full services sparkplug and wire as tuneup oil changes fuel services and coolant same recurring problems continued after serviced alignment services.controls are very strong

NHTSA ODI 11610673

Numerous difficulties have arisen during the process of driving on multiple occasions. The tablet/Radio continues to reset, and the traction control sensor light continues to illuminate. I have communicated with the GMC service center on several occasions, and each time, no issues were found. During an oil change at another dealership, no service recommendations were mentioned, yet a list of offset services was listed on Mopar. As I continued to drive, I noticed that the speed controls were limiting speeds, necessitating self-serviced accelerated drives. This has been ongoing for some time while driving and has required ongoing fuel adjustments. I have received tune-up services, coolant services, fuel services, wheel balancing, and several alignments, which have recently caused significant inconvenience. Routine maintenance has been performed, and the RPM gauge remains constant during operation. Make a unsafe drive.

NHTSA ODI 11606013

HAVING AN ONGOING ISSUE WHILE DRIVING. I'VE BEN ON THE HIGHWAY IN THE RAIN AND SNOW GOING 65-70 MPH AS WELL AS DRY PAVEMENT. ALL OF A SUDDEN MY DASHBOARD WILL LIGHT UP SAYING SERVICE TRACTION CONTROL, BRAKE SYSTEM, ABS , PARK ASSIST OFF AND CHECK ENGINE LIGHTS UP AND BLINKS . I WILL LOOSE MY BRAKES I THEN HAVE TO PUMP MY BRAKES SEVERAL TIMES TO GET TO EVEN SLOW DOWN OR STOP . IT'S ALSO HAPPENED WHEN I AM DRIVING DOWN A RESIDENTIAL STREET. WHEN I PULL OVER TURN THE TRUCK OFF AND GOES BACK TO NORMAL FOR A SHORT DISTANCE. WEATHER DOESN'T SEEM TO BE A FACTOR OR SPEED. TAKEN VEHICLE TO DEALERSHIP AND THEY DON'T FIND ANYTHING WRONG. HAD THEM REPLACE BEARINGS AS WELL AS SPEED SENSORS AND IT IS STILL HAPPENING. AND I HAD A CODE COME UP FOR CYLINDER MISFIRE AND KNOCK SENSOR. THEN TAKE IT GARAGE AND NOTHING IS WRONG.

NHTSA ODI 11376909

I WAS ON THE HIGHWAY DRIVING THROUGH BOSTON IN THE FAST LANE, GOING ABOUT 70MPH WHEN ALL OF A SUDDEN THE STABILITY CONTROL LIGHT CAME ON WITH THE CHECK ENGINE LIGHT AND THE ENGINE REDUCED POWER LIGHT AND MY VEHICLE TOTALLY LOST POWER TO THE GAS PEDAL. I WAS ABLE TO GET INTO THE SLOW LANE BUT MY VEHICLE WAS NOT ABLE TO GO FASTER THAN 35MPH AND THERE WAS HARDLY POWER TO MY GAS PEDAL. LUCKILY, I MADE IT TO AN OFF RAMP, AS I STARTED TO COME TO A STOP, THE ENGINE WAS RUNNING VERY ROUGH AND IT FELT LIKE IT WAS SHAKING THE VEHICLE BACK AND FORTH. I BARELY MADE IT INTO A EMPTY PARKING LOT AND SHUT THE ENGINE OFF. I MANAGED TO MAKE IT TO MY MECHANIC, WHO GOT A THROTTLE SENSOR CODE FROM THE ENGINE. HE TOLD ME ABOUT A SPECIAL COVERAGE ADJUSTMENT #12273B FROM GMC, REGARDING THIS EXACT ISSUE AND TOLD ME TO TAKE IT TO GMC. GMC TOLD ME, MY VEHICLE ISN'T LISTED FOR THIS ADJUSTMENT, EVEN THOUGH, IT SAYS IT SHOULD COVER 2008-20111 GMC YUKONS. APPARENTLY, GMC SAID MY VIN ISN'T LISTED AS HAVING THE FAULTY PART. I ALMOST DIED THIS MORNING IN THE FAST LANE IN BOSTON WITH THE EXACT PROBLEM GMC DESCRIBES IN THE 12273B. GMC SAID I'M NOT COVERED AND HAVE TO PAY OUT OF POCKET. ABSURD. *TR

NHTSA ODI 10938494

TL* THE CONTACT OWNS A 2011 YUKON XL. THE CONTACT WAS DRIVING APPROXIMATELY 60 MPH WHEN THE ACCELERATE BECAME STUCK AND THE SPEED INCREASED. THE CONTACT DEPRESSED THE BRAKES BUT TO NO AVAIL. THE CONTACT THEN USED THE EMERGENCY BRAKE WHICH SLOWED THE VEHICLE DOWN, BUT THE VEHICLE WOULD NOT STOP SO THE CONTACT JUMPED OUT OF THE VEHICLE AT APPROXIMATELY 35 MPH. IN A HALF MILE, THE VEHICLE CRASHED. THERE WERE NO INJURIES. THE VEHICLE WAS TOWED AND THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 70,000. THE VIN WAS NOT AVAILABLE.

NHTSA ODI 10652819

THE TRUCK WAS PARKED AND RUNNING. IT SUDDENLY BEGAN TO IDLE AS IF SOMEONE WAS PUSHING DOWN ON THE GAS. I IMMEDIATELY SHUT THE CAR OFF. I TURNED IT BACK ON AND THE ENGINE LIGHT WAS ON AND IT READ "REDUCED ENGINE POWER". IT SEEMED TO DRIVE OK. I CALLED DEALERSHIP AND MADE APT FOR TUESDAY. (IT WAS THURSDAY) THE NEXT DAY I DROVE IT TO LOCAL GARAGE TO READ ENGINE CODE. IT WAS P2135. THE TRUCK THEN STOPPED ACCELERATING. IT WOULD NOT GO OVER 25MPH. IT TOOK ABOUT 2 FULL MIN TO GET IT AT THAT SPEED. WHEN I WOULD BREAK, THE TRUCK WOULD JUMP AS IF DID NOT WANT TO STOP. THE DEALERSHIP DIAGNOSED THE PROBLEM AS THE THROTTLE POSITION SENSOR COVER. I WAS INFORMED THAT GMC IS AWARE THAT THERE IS A PROBLEM AND HAS SINCE CORRECTED IT. HOWEVER, THERE IS NO RECALL AS THERE IS NO ALLEGED SAFETY ISSUES. I BELIEVE THAT WHEN YOU HAVE A 1,2, AND 3 YEAR OLD IN THE TRUCK IN RUSH HOUR, IT IS DARK OUTSIDE, AND YOU ARE AN HOUR AWAY FROM HOME IT IS A HUGE SAFETY ISSUE WHEN YOUR TRUCK WON'T ACCELERATE! I HAVE CONTACTED GMC WHO REFUSES TO TAKE RESPONSIBILITY FOR THIS ISSUE. PLEASE ISSUE A RECALL AS THIS IS A KNOWN PROBLEM. *TR

NHTSA ODI 10495252