Transmission shudder, hard shifting, and failure
POWER TRAIN
21 NHTSA complaints · 2017-07 → 2024-11
“On July 5, 2024 while traveling and towing our 5th wheel (7,200lbs) with our 2017 GMC 2500 6.0L GAS engine (with the 6L90 transmission) and without any previous warnings or signals the check engine light illuminated and approximately 10 mins later the vehicle went into limp mode”
“HAVE HAD THIS INTO THE DEALER AT THE FIRST OIL CHANGE AND COMPLAINED ABOUT TRANSMISSION SHIFTING ISSUES AND IT BEING UNSAFE TO DRIVE. COMPLAINTS ARE: HARD SHIFT, IT CLUNKS BOTH UPSHIFTING AND DOWNSHIFTING. GOING AROUND CORNERS FROM A STOP THE TRUCK WILL EITHER FALL ON ITS FACE”
“MY 2017 GMC SIERRA SHUTTERS AND JERKS WHEN GOING INTO AND OUT OF 1ST GEAR AND GOING AROUND CORNERS WHEN IT CHANGES GEARS. ESPECIALLY WHEN COLD. DOES NOT HAPPEN ALL THE TIME. AT TIMES IT HAS JERKED INTO AN INTERSECTIONAND WAS SCRY. MY WIFE WILL NOT DRIVE THIS VEHICLE. HAVE HAD IT”