2021 GMC SIERRA 1500 Complaints

The contact owns a 2021 GMC Sierra 1500. The contact stated while driving 20-30 mph, she heard abnormal noises coming from the trunk of the vehicle, with no warning lights illuminated. The vehicle was taken to the dealer, where it was diagnosed that the dash line had detached from its holder and was rubbing against the frame of the vehicle. The vehicle was repaired, however, the failure persisted. The vehicle was taken back to the dealer who diagnosed that the drive axle, band, and rear pinion needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 420.

Airbag light and "Service Safety Restraint System" keep flashing on and off intermittently. Sometimes every 5 seconds. Sometimes once or twice a day. This is a known issue with 2021 GM trucks and SUVs. Trying to get vehicle in for service but dealer said they are booked 2 weeks out and won't given loaner vehicles at all anymore. The vehicle has less than 2000 miles on it.

The contact owns a 2021 GMC Sierra 1500. The contact stated while driving at undisclosed speeds, the Lane Departure Assist warning failed to activate when the vehicle drifted out of the driving lane. The failure was intermittent. The cause of the failure was not yet determined. The vehicle was taken to the local dealer who was unable to identify the cause of the failure. The contact was informed that the vehicle operated as intended. The manufacturer was notified of the failure. The failure mileage was 100.

This is the second time I stop at the grocery store for about 15 or 20 min, get back in the car push the start, then the truck keep cranking with no start for about 20 seconds. Then I try second time and it fires up.

THE CONTACT'S FATHER OWNS A 2021 GMC SIERRA 1500. THE CONTACT STATED THAT HER FATHER WAS DRIVING AT AN UNDISCLOSED SPEED, WHEN THE VEHICLE STALLED. THE VEHICLE STALLED THREE TIMES ON THREE SEPARATE OCCASIONS AND WAS TAKEN TO THREE DIFFERENT DEALERS. THE VEHICLE WAS FIRST TOWED TO Bill Kay Buick GMC (2300 Ogden Ave, Downers Grove, IL 60515) AND DIAGNOSED AS BATTERY FAILURE AND REPAIRED HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS THEN TOWED TO Phillips Chevrolet of Lansing (17730 Torrence Ave, Lansing, IL 60438) AND DIAGNOSED THAT THE TRANSMISSION CABLE CAUSED THE FAILURE. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED AFTER GETTING THE VEHICLE BACK FROM THE DEALER. THE VEHICLE WAS THEN DRIVEN TO Zeigler Buick GMC of Lincolnwood (6900 McCormick Blvd, Lincolnwood, IL 60712) BUT WAS NOT YET DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND A COMPLAINT WAS FILED. THE CONTACT WAS INFORMED THAT THE DEALER WANTED TO REPAIR THE VEHICLE. THE FAILURE MILEAGE WAS 3,000.

5300 miles and when you accelerate it knocks and or ticks, and loss of power all lights on dash came on

SUN GLARE REFLECTS OFF CENTER CONSOLE CUP HOLDER WITH SUCH INTENSITY IT'S HARD TO FOCUS ON THE ROAD EVEN WITH SUNGLASSES ON.

THE AUTO STOP FEATURE ON MY TRUCK IS DANGEROUS! THERE IS NO WAY TO PERMANENTLY DISABLE IT. WHEN PULLING INTO TRAFFIC FROM A STOP, THERE IS A SIGNIFICANT DELAY FOR THE CAR TO RESTART AND GET MOVING! I HAVE ALMOST BEEN IN SEVERAL ACCIDENTS BECAUSE OF THIS. FORGET THE $20 IN GAS THIS JUNK MIGHT SAVE SOMEONE OVER A YEAR! IT IS DANGEROUS

RETURNED HOME AFTER SOME SHOPPING. PARKED TRUCK IN DRIVE WAY. APPROXIMATELY 5 MINUTES AFTER RETURNING HOME MY WIFE SAW TRUCK SMOKING FROM UNDER THE HOOD. WITHIN ANOTHER MINUTE OR TWO THERE WERE VISIBLE FLAMES COMING FROM THE BACK EDGE OF THE HOOD. WE CALLED 911. WITHIN 5 MINUTES THE ENTIRE FRONT END OF THE TRUCK WAS ENGULFED IN FLAMES. THE FIRE DEPARTMENT ARRIVED AND PUT OUT THE FIRE BUT THE ENTIRE FRONT AND CAB OF THE TRUCK WAS DESTROYED. FIRE INVESTIGATORS DETERMINED FIRE STARTED AT BACK OF ENGINE COMPARTMENT NEAR BATTERY. VEHICLE WAS STOPPED PARKED IN OFF CONDITION. IN MY DRIVEWAY. NO MECHANICAL PROBLEMS WERE NOTICED ON RIDE HOME AND THERE WERE NO PANEL ALERTS FOR PROBLEMS.

TRANSMISSION SHIFTS HARD WHEN SHIFTING UP AND WHEN DOWNSHIFTING. VEHICLE JERKS WHEN GOING SPEEDS <40 AFTER COMING OFF HIGHWAY AT HIGHWAY SPEEDS >70.