2017 GMC Sierra Denali

14 complaints on file, page 1 of 1.

1. Filed Mar 30, 2026Failure Mar 30, 2026209,000 milesMilledgeville, GAEngine

   The contact owns a 2017 GMC Sierra 2500 Denali. The contact stated that while driving at an undisclosed speed, the vehicle went into LIMP Mode. There was no warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the knock sensor had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 209,000.

   NHTSA complaint 11727937
2. Filed Mar 9, 2026Failure Feb 23, 2026103,000 milesFort Riley, KSAutomatic transmission

   The contact owns a 2017 GMC Sierra Denali. The contact stated that while driving on the highway at an undisclosed speed, the vehicle jerked, failed to accelerate, and stalled. The vehicle was unable to shift into third gear. The check engine warning light was illuminated. The vehicle was drivable and was taken to the dealer. The vehicle was diagnosed with a wiring harness failure on the transmission. The vehicle was repaired based on the diagnostic test but failed to fix the vehicle. The vehicle was parked at the residence and was undrivable. The failure mileage was approximately 103,000.

   NHTSA complaint 11723074
3. Filed Nov 10, 2025Failure Oct 13, 2025105,000 milesWauwatosa, WIEngine and engine cooling

   The contact owns a 2017 GMC Sierra Denali. The contact stated that while driving approximately 40 MPH, the check engine warning light illuminated. The contact stated that the vehicle was shuddering and vibrating. The contact pulled over and opened the hood with the engine running. The contact stated that there was an abnormal ticking sound coming from the engine. The vehicle was driven to an independent mechanic, who diagnosed the vehicle and determined that the fuel injectors needed to be replaced. The vehicle was repaired; however, the vehicle was still running rough. The contact was advised by the mechanic that the fuel injectors needed to be reprogrammed, and the vehicle was taken to a dealer. The dealer reprogrammed the fuel injectors, but the vehicle was still running rough. The dealer had not opened the engine up to diagnose the failure; however, the dealer thought that there might be a failure with connecting rods. The vehicle was not repaired. The contact researched online and related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The manufacturer was not informed of the failure. The failure mileage was approximately 105,000.

   NHTSA complaint 11698620
4. Filed Feb 29, 2024Failure Jul 31, 202332,000 milesYukon, OKAir bags, Seat beltsCrash1 injured

   The contact owned a 2017 GMC Sierra Denali. The contact stated that while driving at 65 MPH, he briefly fell asleep. As a result, the vehicle left the roadway and collided with the exit median, coming to a complete stop after careening into a side ditch. The air bags did not deploy, and the seat belt failed to properly retrain, resulting in head and neck injuries. No warning lights were illuminated. A police report was filed, and injuries were reported. The contact was transported to an area hospital by EMT and treated for various lacerations to his head and arms and an unstable fracture of the C7 in his lower neck, later requiring surgery. The vehicle was towed to a tow yard and deemed a total loss by the contact's insurance provider due to a bent chassis. The manufacturer was notified of the failure, and they inspected the vehicle, concluding that the impact was not sufficient to trigger air bag deployment, estimating that the vehicle was traveling between 1 and 4 MPH and that the air bags were functioning properly. The VIN was not available. The failure mileage was 32,000.

   NHTSA complaint 11574702
5. Filed Mar 9, 2022Failure Feb 9, 2022Huntsville, TXEquipment

   The contact owns a 2017 GMC Sierra Denali. The contact was notified by her state inspection office that her vehicle was included in NHTSA Campaign Number: 21V496000 (Equipment). The dealer was notified about the recall and informed her that parts for the recall repair were not yet available. The manufacturer had been notified of the recall and contacted several dealers in her area; however, the dealers also did not have part available for the recall. The contact stated that the manufacturer had exceeded a reasonable amount of time for the repair. The contact had not experienced a failure. Parts distribution disconnect.

   NHTSA complaint 11455918
6. Filed Apr 14, 2021Failure Feb 15, 2021Katy, TXTail lights

   2017 GMC DENALI. CONSUMER WRITES REGARDING AN INOPERATIVE PASSENGER TAIL LIGHT. *LD THE CONSUMER STATED THE AFTER REMOVING THE FIXTURE, HE DISCOVERED THERE WAS NO BULB. THE ONLY WAY TO REPAIR THE FAILURE WAS TO REMOVE THE ENTIRE FIXTURE. *JS

   NHTSA complaint 11407681
7. Filed Mar 7, 2021Failure Sep 2, 202051,800 milesLouisville, KYUnknown or other

   MY AIR CONDITIONING STOPPED WORKING AT ONLY 51,800MI AND JUST OVER 3 YEARS OLD ON MY 2017 GMC SIERRA 1500 DENALI. MY MECHANIC SAID MY AC CONDENSER IS LEAKING AND NEEDS TO BE REPLACED. HE SAID IT IS A WIDELY KNOWN ISSUE BUT NOT A RECALL.

   NHTSA complaint 11399586
8. Filed Mar 4, 2021Failure Mar 1, 202184,000 milesCollierville, TNSuspension

   FRONT STRUTS WITH ELECTRONIC CONTROL WENT OUT WHILE DRIVING.

   NHTSA complaint 11399122
9. Filed Nov 27, 2020Failure Nov 13, 2020Falmouth, MEWheels

   MY BRIDGESTONE TIRES HAVE DRY ROTTED ALL 4 TIRE MANUFACTURING DATE IS 2017 SAME AS MY TRUCK NEW I HAVE 28 THOUSAND MILES ON THE TRUCK TOOK IT TO THE DEALERSHIP THEY TOOK PICTURES OF ALL TIRES AND TOLD ME THEY WERE VERY BAD THE TIRES SHOW LITTLE WEAR ON THE TIRES ALL OF THE DRY ROT IN ON THE SIDEWALLS ONLY THE DEALERSHIP SAID THERE HAS BEEN PROBLEMS WITH THESE TIRES AND TOLD ME TO CALL GM AND SEE IF THEY WOULD DO SOMETHING AS THEY WOULD NOT I DID CALL GM AND ALL THEY WOULD OFFER UP WOULD BE $100 DEALERSHIP VOUCHER GREAT JASON DOYLE TOOK PICTURES OF THE TIRES HE WORKS AT BILL DODGE 2 SAUNDERS WAY WESTBROOK MAINE HIS PHONE 207-857-4944

   NHTSA complaint 11376731
10. Filed Oct 13, 2020Failure Oct 13, 202013,200 milesPoteau, OKPower train

    WHILE DRIVING MY GMC SIERRA DENALI THE TRANSMISSION SHUDDERS REALLY BAD. I HAVE A 2017 WITH JUST 13,200 MILES ON IT. I WAS PULLING MY BASS BOAT AND THE SHURDDER WAS SO BAD MY DASH WAS SHAKING AND THE STEERING WHEEL WAS ALSO .I HAVE HAD THE FLUID CHANGED AT THE DEALERSHIP AND IT SHIFTED FINE AND DID NOT SHUDDER UNTIL IT REACHED AROUND 1000 MILES AFTER FLUID CHANGE AND IT IS DOING IT WORSE NOW THAN BEFORE. I TOOK IT TO THE DEALER CLOSE TO ME AND THEY INFORMED ME TODAY THEY WERE GOING TO DO NOTHING AND THEY TOLD ME TO TAKE IT BACK TO THE DEALER I BOUGHT IT FROM! THIS IS UNACCEPTABLE! I UNDERSTAND FROM ALL I HAVE BEEN READING ABOUT THIS PROBLEM GM STILL IS BUILDING AND SELLING TRUCKS WITH THE 8 SPEED TRANS IN THEM AND STILL HAVING PROBLEMS. REALLY? I GUESS I WILL KEEP DRIVING MINE AND I HOPE THE TRANSMISSION JUST COMES APART THEN THEY WILL GIVE ME ANOTHER TRANSMISSION DOING THE SAME THING! JUST GREAT GM!

    NHTSA complaint 11364221
11. Filed Sep 25, 2020Failure Jan 1, 2020Smithfield, NCUnknown or other

    AFTER BEING STOPPED LIKE AT A STOPLIGHT, THEN WHEN IT'S TIME TO ACCELERATE, THE TRUCK HAS A HARD JERK TO IT, AND IT DOESN'T WANT TO DOWN SHIFT. PLUS WHEN RIDING DOWN THE ROAD, THE TRUCK WILL LO JUST SUDDENLY JERK SO BAD THAT IT FEELS LIKE SOMEONE RAN INTO THE BACK OF THE TRUCK. THIS HAS BEEN GOING ON FOR A LONG TIME, AND I HAVE TAKEN IT TO THE DEALERSHIP 4 TIMES AND THEY SAID THEY COULDN'T FIX IT. I EVEN RODE WITH THEM, AND IT DID IT. THEY STILL DIDN'T WANT TO FIX IT.

    NHTSA complaint 11361068
12. Filed Jul 1, 2020Failure Jun 30, 202042,300 milesCasa Grande, AZPower train

    HARSH DOWNSHIFT INTERMITTENT BETWEEN 20 AND 30 MPH. BINDING/CLUNKING AT LOW SPEEDS WHEN DOWNSHIFTING INTO FIRST OR UP SHIFTING INTO 2. TRANSMISSION SHUDDER WHEN ACCELERATING IN FIRST GEAR. VEHICLE LUNGES FORWARD INTERMITTENTLY AT LOW SPEEDS WHEN SHIFTING.

    NHTSA complaint 11331959
13. Filed May 26, 2020Failure May 26, 202060,000 milesMarshallville, OHUnknown or other

    ABOVE 35MPH I BEGIN TO GET AN EXTREME SHAKE AND VIBRATION. IT GETS MORE AND MORE PRONOUNCED AS I DRIVE. AT 65MPH IS NEARLY UNBEARABLE, AND SHAKES AND VIBRATES VIOLENTLY. IT GIVES ME HEADACHES, AND I CAN FEEL IT IN MY ARMS AS I DRIVE. I FIRST NOTICED IT ABOUT 100 MILES AFTER BUYING THE TRUCK. IT NOW HAPPENS DAILY. *TR

    NHTSA complaint 11325950
14. Filed Aug 22, 2017Failure Feb 6, 2017300 milesTigard, OREngine

    NOTICED VIVID AND PERSISTENT ENGINE VIBRATION SHORTLY AFTER PURCHASE - WITH NO ASSOCIATED CHECK ENGINE CODE. VIBRATION HAPPENS AT ALL ENGINE AND AMBIENT TEMPERATURES (ESPECIALLY BELOW 50 DEGREES FAHRENHEIT), AT ALL ALTITUDES, REGARDLESS IF IN PARK, NEUTRAL, OR DRIVE. VIBRATION IS SO NOTICEABLE, YOU CAN WATCH THE WAVES VIBRATE THROUGH A CLASS OF WATER WHEN PLACED ON THE DASHBOARD. TAKEN TO TWO DIFFERENT DEALERSHIPS AND BOTH HAVE STATED THE VIBRATION EXPERIENCED IS PER NORMAL DESIGN FOR 6.2L ENGINE. HARD TO BELIEVE GM WOULD DESIGN A $65K+ VEHICLE THAT PURPOSELY VIBRATES/SHAKES. ESCALATED THROUGH GM CORPORATE (SR# 8-3108393XXX), TO WHICH THEY CONFIRMED TRUCK IS RUNNING AS DESIGNED. SINCE THE ENGINE WAS NOT THROWING A CODE, NO FURTHER INVESTMENT/RESOLUTION WAS NEEDED ON THEIR END. THEIR SOLUTION TO ME...SELL THE TRUCK IF NOT HAPPY. OF COURSE THEY DID NOT SAY THAT, BUT THAT'S THE WAY I INTERPRETED THEIR RESPONSE TO MEAN. BUYER BEWARE.

    NHTSA complaint 11018892