Gmc SIERRA DENALI transmission problems
20 complaint narratives mention transmission terms.
Key facts
247 owner complaints analyzed
1 distinct recall campaigns
49,800 mi median reported failure mileage
Scope: 2002 to 2020 model years. Data snapshot: . 210 complaints include usable failure mileage.
Transmission and shifting evidence
20 of 247 complaints match this topic (8.1%). The keyword filter can include complaints that mention a transmission without reporting its failure. View matching rules.
Owner report 10611180 · 2014-07-17 (July 17, 2014)
I WAS DRIVING DOWN ROUTE 24 IN LEWES, DELAWARE APPROACHING A YELLOW LIGHT WHEN THE CAR IN FRONT OF ME STOPPED. I APPLIED THE BRAKES AND THEY COMPLETELY FAILED DESPITE PUTTING THE PEDDLE ALL THE WAY TO THE FLOOR. I WAS FORCED TO VEER ONTO THE SHOULDER THEN INTO A FARMERS FIELD IN ORDER TO SLOW THE TRUCK DOWN ENOUGH TO FORCE IT INTO PARK. APPARENTLY THE HYDRAULIC BRAKE LINES ON THESE TRUCKS ARE COMPLETELY EXPOSED TO THE ELEMENTS AND HAVE A HISTORY OF FAILING. ONCE THAT HAPPENS, THE REAR CALIPERS LOCK UP AND THERE ARE NO BRAKES AT ALL SWITCH CAN C…
Owner-reported narrative. 108,000 miles reported. Look up ODI 10611180 at NHTSA ↗
Owner report 10746325 · 2015-08-05 (August 5, 2015)
ON JULY 29, 2015, WHILE DRIVING AT APPROXIMATELY 45 MPH, THE VEHICLE SUDDENLY DOWNSHIFTED ITSELF INTO FIRST GEAR CAUSING THE VEHICLE TO SLOW DOWN SUDDENLY WITH NO NOTICE. I WAS ABLE TO GET THE VEHICLE OFF THE ROAD AND INTO A GAS STATION. AFTER THE FACT THE CHECK ENGINE LIGHT WAS ILLUMINATED. THE VEHICLE WAS TOWED TO THE DEALERSHIP. I WAS TOLD THE TCM (TRANSMISSION CONTROL MODULE) NEEDED REPLACING AND THAT THERE IS A KNOWN ISSUE WITH THIS YEAR TRUCK. THIS IS A VERY DANGEROUS SITUATION TO HAVE YOUR VEHICLE SUDDENLY SLOW DOWN WHILE DRIVING AT…
Owner-reported narrative. 60,000 miles reported. Look up ODI 10746325 at NHTSA ↗
Owner report 11337567 · 2020-07-05 (July 5, 2020)
IN 2017 BEFORE MY VEHICLE COMPLETING TWO YEARS FROM THE DATE OF PURCHASE AT (70,000 KM) THE VEHICLE START SHUDDERING WHEN ACCELERATING AT LOW SPEED, WHEN THE SERVICE WAS DUE I TOOK THE VEHICLE TO DEALER FOR SERVICE & COMPLAINED ABOUT THE SHUDDERING ISSUE, AFTER DIAGNOSING THE VEHICLE THEY SAID THAT THEY HAVE TO REPLACE THE TORQUE CONVERTER, SO THEY DID REPLACE THE TORQUE CONVERTER UNDER WARRANTY AFTER FIXING THE TORQUE CONVERTER ISSUE I FOUND TRACE OF OIL IN FRONT DRIVER SIDE & AGAIN WHEN THE SERVICE WAS DUE I COMPLAINED ABOUT THE LEAK, AFTE…
Owner-reported narrative. 43,750 miles reported. Look up ODI 11337567 at NHTSA ↗
Owner report 11180690 · 2019-02-17 (February 17, 2019)
WHEN COMING TO A STOP, APPLYING A STEADY AMOUNT OF BRAKE PRESSURE THE TRANSMISSION SHIFTS AND LOSES ALL FORMS OF ENGINE BRAKING CAUSING THE TRUCK TO SPEED UP AND OVERSHOOTS THE STOPSIGN.
Owner-reported narrative. 55,000 miles reported. Look up ODI 11180690 at NHTSA ↗
Owner report 11287131 · 2019-12-05 (December 5, 2019)
TRANSMISSION IS NOT ABLE TO BE FIXED. THREE REPAIRS AND GM CAN'T FIX. TRANSMISSION JERKS, SLIPS, CLUNKS. UNCOMFORABLE TO DRIVE. I AM STUCK WITH SUBPAR VEHICLE. GM HAS BEEN HORRIBLE TO WORK WITH. 17 RECALLS? WHY CANT GM MAKE A SOLID RELIABLE VEHICLE AFTER 100 YEARS IN BUSINESS?
Owner-reported narrative. 3,977 miles reported. Look up ODI 11287131 at NHTSA ↗