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

My Yukon Denali XL GM engine that was put in on 07/2022 has already failed. It failed as I was driving down highway at 65 mile per hour. It failed on 04/12/2025. I paid almost $7,000 to have my engine replace due to the original engine failing in early 2022. Now the engine that I paid thousands of dollars for has already failed and has no compression in cylinder 4. I have researched this and can see GM is currently in litigation over car owners reporting engine failure due to either liftors or cams. My car should be considered in this class action lawsuit against GM. It's wrong for a company to take so much money from owners and use an engine that GM knew had issues and was faulty to place it into my vehicle only to have it fail and now make my vehicle undriveable and I am told it's another $8,000 to repair it. GM should address this issue with my vehicle and replace this engine that I had put in in 07/2022. GM was aware of this engine problem with my model car Yukon. GM knew this particular engine that they used in my vehicle on 07/22 (A GM engine) had the issue that GM is being sued for and sure enough the engine has now failed in my Yukon. Please hold GM accountable for this and include my car in this lawsuit.

NHTSA ODI 11733987

I am writing to express my concerns and frustrations regarding the recurring issues with my vehicle despite multiple service appointments at Classic GMC Arlington. Despite numerous attempts to address these problems, I continue to experience issues with Continuity of service and performance Fueling system and coolant system problems (twice in six months) Stabilizer link light illumination during startup RPM acceleration while slowing down or stopping Ticking sound from the engine. Each time I bring my vehicle in for service, I am told that there are no issues with the performance, idle, or spark plugs, despite having recently received a full service tune-up. I suspect that there may be intentional damage or tampering with my vehicle, which is causing these persistent problems.I have not had any prior issues or service lights illuminated before, and there were no incidents reported by the previous owners. I believe there may be fraudulent activity involving the manufacturer and service providers. schedule a thorough inspection and diagnosis to address these recurring issues.

NHTSA ODI 11599554

Keep getting traction control and stability issue warnings along with reduced engine power. Idles up and down and rough Car was parked haven’t moved

NHTSA ODI 11450278

I have replaced the battery and alternator. My door locks keep locking and unlocking on the own while driving, all my electrical in my car dim and keep resetting, my gauges are going all over the place. My car will turn itself off. While stopped at a red light, it seems to want to go on its own. While not running, I get in to leave, and my key at times don’t want to turn over. Then at times I try to start it and it will tell me theft control and won’t crank. When I’m out of my vehicle at home, my car will lock itself when the setting is turned off. The problem has been going on for a year but only getting worse now.

NHTSA ODI 11424772

MY 5TH CYLINDER EXPLODED. I HAD A P0305 CODE FOR 5TH CYLINDER MISFIRE, TOOK INTO THE DEALERSHIP AND THEY REPLACED THE COIL PACK ON THAT CYLINDER ON 10/20/2020 AND 01/17/2021 THE 5TH CYLINDER EXPLODED CAUSE CHUNKS OF METAL TO BE THROWN THROUGH THE SIDE AND CAUSE A CATASTROPHIC ENGINE FAILURE. IT WAS STATIONARY IN A PARKING LOT BUT I WAS JUST ABOUT TO PUT THE CAR IN REVERSE TO DRIVE WHEN I HEAR A NOISE AND SHUT THE CAR OFF. UPON FURTHER RESEARCH THERE IS CURRENTLY A CLASS ACTION LAWSUIT AGAINST THE GM FOR THE HIGH FAILURE RATE OF 2010-2014 YEARS FOR VEHICLES THAT USED THE 5.3LITER ENGINES; THE 6.2 LITER ENGINE, THE ONE IN MY VEHICLE, WAS MANUFACTURED IN THE SAME PLANT AS THE 5.3 LITER. GM FAILED TO DISCLOSE TO THE PUBLIC OF THE KNOWN DEFECT TO THE ENGINES.

NHTSA ODI 11389079

VEHICLE STOPPED FOR TRAFFIC LIGHT ON A CITY STREET INTERSECTION, WOULD NOT PROGRESS. HAD TO BE TOWED. TRANSMISSION WENT OUT & WERE TOLD THAT THIS MODEL, YEAR AND ENGINE HAD A FAULTY TRANSMISSION COMPUTER WHICH LED TO INTERNAL PUMP FAILURE, AFFECTING PERFORMANCE OF TORQUE CONVERTER.

NHTSA ODI 11292195

MUTIPLE REDISTRIBUTING OF VECHICLE BY FRAMED POLICE RETALIATION AND TERRIFFS CONTROLING SIGNAL AND CUMMUNICATIONS THROUGH THE NEGLIGENT USE OF PARTS FROM MY TRUCKS BUILD BASED OFF OF SALES MEN CLAIMING TO PROTECT THE FINANCING DEPARTMENTS AND TRANSFER OF TITLES OF INCORPORATED DEALS DEALERS RIGHTS TO INVESTIGATING HIGH CACULATORY VARIABLES

NHTSA ODI 11291149

TRANSMISSION DEFECTIVE @60,000 MILE MARK WITH INITIAL SENSATION OF GETTING BUMPED FROM BEHIND WHEN COMING TO A STOP THAT THE DEALERSHIP ROUTINELY STATED, "OH THAT'S THE WAY THEY ALLURE". DASHBOARD DISINTEGRATING BEFORE MY EYES WITH MULTIPLE PLASTIC SHARDS THAT WILL BECOME DEADLY PROJECTILES IF EVER IN ACCIDENT AND WHO KNOWS HOW BAD IT WILL GET IF AIR BAGS DEPLOY.

NHTSA ODI 11288786

TRANSMISSION DIPSTICK TUBE BREAKS EASILY. VECHILE WAS STATIONARY

NHTSA ODI 11085010

TRAVELLING AT SPEED ON THE HIGHWAY (60 MPH) , THE ENGINE LIGHT COMES ON AND A STABILITRAK MESSAGE IS SHOWN. POWER TO THE ENGINE IS DRAMATICALLY REDUCED. CAR SHAKES VIOLENTLY AND IT IS DIFFICULT TO GET OFF THE HIGHWAY. A SECONDAY MESSAGE APPEARS TO CHECK THROTTLE BODY ASSEMBLY. VERY CLOSE TO GETTING REAR ENDED. THIS IS A MAJOR DEFECT THAT HAS TO BE ADDRESSED. IT HAS ALSO OCCURRED ON A 2014 GMC YUKON XL THAT WE OWN.

NHTSA ODI 11063593

THE VEHICLE SUDDENLY LOST POWER AND THE STABILI-TRAC SYSTEM WARNING APPEARED IN THE DIC, THEN THE TRACTION CONTROL SYSTEM WARNING APPEARED IN THE DIC, THEN ENGINE POWER REDUCED BY 16% IN THE DIC. DROVE VEHICLE TO EXIT RAMP AND TURNED ENGINE OFF. VEHICLE RESTARTED WITH ONLY THE CHECK ENGINE LIGHT ON AND NO WARNINGS IN THE DIC. THE ENGINE DID NOT HOWEVER RUN SMOOTHLY. I TOOK IT TO A DEALER WHO CLEAR SOME CODES AND REPLACED THE TPS. CHECKED ALL FUSES. NO FURTHER PROBLEM. HOWEVER A FRIEND HAS THE SAME VEHICLE IN A 2010 MODEL. SAME PROBLEM DEALER REPLACED A THROTTLE BODY. CHECK OUT THE GM FORUM AT [XXX] THIS FORUM SHOWS LITERALLY HUNDREDS OF COMPLAINTS ABOUT THE SAME PROBLEM AND IN SOME CASES CAUSING ACCIDENTS. MY VEHICLE WAS REPAIRED ON 1-24-2013, AND SO FAR IT APPEARS THAT MY PROBLEM HAS BEEN RESOLVED, HOWEVER IT APPEARS GM IS NOT REALLY FIXING THE PROBLEM. I AM CONCERNED ABOUT THIS FOR THE NEXT OUT OF TOWN TRIP I TAKE. *TR PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA ODI 10494730

2011 2-WD YUKON XL 1500 ENGINE STALL. TOOK DELIVERY 7/1/2011. ON 7/5/2011, WHILE DRIVING AT CITY SPEEDS, ENGINE STALLED (SHUT OFF), WAS ABLE TO RESTART. THIS HAPPENED TWICE CONSECUTIVELY. DID NOT EXPERIENCE AGAIN UNTIL 7/14/2011. THIS TIME WAS DRIVING IN CENTER LANE, 5 LANE FREEWAY, DURING RUSH HOUR AT POSTED 65 MPH SPEED. AGAIN, ENGINE STALLED (SHUT DOWN). DURING 3 CYCLES OF STALL/SHUT DOWN/RESTART, WAS ABLE TO MAKE MY WAY TO RIGHT LANE, DRIVE/COAST TO EXIT RAMP, EXIT FREEWAY AND ENTER A RETAIL PARKING LOT WITHOUT AN ACCIDENT. DURING PROCESS, HEARD A POP/CLICK TO MY LEFT IN THE DASHBOARD. TURNED OFF AIR CONDITIONER, RESTARTED TRUCK AND MADE MY WAY HOME. DURING THIS DRIVE HOME, THE ALTERNATOR/VOLTAGE GAUGE NEEDLE BOUNCED TO EXTREME RIGHT FOR A SHORT PERIOD OF TIME, THEN SETTLED BACK CLOSER TO CENTER. PRIOR TO INCIDENT, I HAD NOTICED SAME NEEDLE OCCASIONALLY/ODDLY SLIGHT TO THE LEFT. TRUCK WAS TOWED TO SELLING DEALERSHIP THAT EVENING. THE FOLLOWING DAY, THE SERVICE DEPARTMENT RAN FULL DIAGNOSTICS AND REPORTED "NOTHING WRONG WITH THE VEHICLE/OPERATING NORMALLY". THERE ARE NO "CODES" OR ANY "HISTORY CODES" SHOWING ANYTHING ABNORMAL OCCURRED WITH THE VEHICLE. 7/18/2011 OPENED CASE FILE WITH GM, BUT LITTLE ASSISTANCE HAS BEEN OFFERED BY THEM OTHER THAN "WE CALLED THE DEALERSHIP". TRUCK HAS BEEN HOUSED AT THE DEALERSHIP NOW FOR 11 DAYS. WE ARE AT A STALEMATE. OUR POSITION IS THE CAR IS NOT SAFE TO DRIVE. DEALERSHIP/GM'S POSITION IS THEY CAN FIND NOTHING WRONG WITH THE VEHICLE. THEY HAVE SUGGESTED WE PICK UP THE VEHICLE AND DRIVE IT UNTIL THE PROBLEM OCCURS AGAIN THEN AGAIN HAVE IT TOWED TO THE DEALERSHIP. OUR RESPONSE IS: IF WE AGREE TO DO THAT, AND ARE LUCKY ENOUGH TO AGAIN "SURVIVE" THE OCCURRENCE WITHOUT BEING INVOLVED IN AN ACCIDENT, WHY DO THEY/WE BELIEVE THEY WILL BE ABLE TO DIAGNOSE AND REPAIR THE PROBLEM? WE ARE WAITING FOR SOMEONE/ANYONE TO INVOLVE THE FACTORY FOR FURTHER TECHNICAL ASSISTANCE TO RESOLVE THIS PROBLEM. *TR

NHTSA ODI 10414968

TL*THE CONTACT OWNS A 2011 GMC YUKON DENALI. THE CONTACT STATED THAT WHILE DRIVING AT SPEEDS OF 55-60 MPH AND TRYING TO APPLY THE BRAKES, THE VEHICLE WOULD SHIMMY. HE DID NOT HAVE COMPLETE CONTROL OF THE VEHICLE AND HE FELT THAT IT WAS UNSAFE TO DRIVE. THE CONTACT STATED THAT THE CHECK BRAKE SYSTEM LIGHT ILLUMINATED TWICE. FURTHERMORE, THE TRANSMISSION SHIFTED "HARD" AT TIMES. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THERE WAS NOTHING WRONG WITH THE VEHICLE. THE VEHICLE HAD NOT BEEN REPAIRED. THE VIN WAS UNAVAILABLE. THE CONTACT CALLED THE MANUFACTURER WHO STATED THAT THEY WOULD RETURN HIS CALL. THE CURRENT MILEAGE WAS APPROXIMATELY 6,000. THE FAILURE MILEAGE WAS 325.

NHTSA ODI 10394126