Jul 2, 2018Transmission & drivetrain
THIS TRUCK IS A 3500 HD. I WAS PULLING A CAMPER ON A 1100 MILE TRIP. WITH 50 MILES LEFT I NOTICED THAT THE TRUCK WAS LEAKING TRANSMISSION FLUID FROM UNDER THE TRANSMISSION COOLER. UPON FURTHER INVESTIGATION I FOUND THAT THE RETURN HOSE FROM THE TRANS COOLER WAS POSITIONED SO THE IT RUBBED ON A FRAME COMPONENT WHICH CAUSED A HOLE TO RUB IN THE ALUMINUM TRANS COOLANT RETURN LINE. I NOTICED THIS WHEN THE TRUCK WAS PARKED RUNNING AT A REST AREA FOR AN HOUR BUT IT WAS OBVIOUSLY AN ONGOING ISSUE. HAD I NOT NOTICED IT WHEN I DID THIS CONDITION COULD HAVE CAUSED CATASTROPHIC FAILURE OF THE TRANSMISSION. THE DEALER SAYS THERE IS NO RECALL AND IT IS NOT UNDER WARRANTY. I CONSIDER THIS TO BE A SERIOUS DESIGN FLAW AND A MAJOR SAFETY ISSUE. I WAS ABLE TO GET TO MY DELIVERY STOP AND GET THE LINE PATCHED. IT IS AT THE DEALER FOR REPAIRS RIGHT NOW.
NHTSA ODI 11105117
Feb 23, 2018Transmission & drivetrain
TRANSMISSION HARSH 1-2 SHIFT WHEN IT IS UNDER LIGHT THROTTLE AND SOMETIME DOES NOT SHIFT OR MAKE NOSE. GMC DEALER ARE AWARE ABOUT THIS ISSUES ON ALL GM TRUCK MODEL OF 2015 TO 2017 WITH 8SPED TRANSMISSION SINCE APRIL 2017. I HAVE ATTACHED DOCUMENTS GIVEN BY DEALER.
NHTSA ODI 11074484
Oct 25, 2017SteeringTransmission & drivetrainWheels
VIBRATION 65+ MPH, FELT IN STEERING WHEEL AND SEAT. STEERING WHEELS QUIVERS AT 65+ MPH. TRUCK FEELS VERY UNSTABLE AT HIGHWAY SPEEDS. DEALER STATES IT'S NORMAL.
NHTSA ODI 11039665
Jul 27, 2017Transmission & drivetrain
TL* THE CONTACT OWNS A 2017 GMC SIERRA. WHILE DRIVING APPROXIMATELY 5 MPH, THE VEHICLE FAILED TO SHIFT OUT OF GEAR AND THERE WAS A DELAY OF THREE TO FOUR SECONDS BEFORE SHIFTING INTO SECOND GEAR. THE FAILURE RECURRED EVERY MORNING. THE VEHICLE WAS TAKEN TO THE DEALER (JIM CAUSLEY, LOCATED AT 38111 GRATIOT AVE, CLINTON TOWNSHIP, MI 48036) WHERE IT WAS CONFIRMED THAT GM WAS AWARE OF THE ISSUE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT THAT THERE WAS NO RECALL ON HIS VIN. NO FURTHER ASSISTANCE WAS OFFERED. THE APPROXIMATE FAILURE MILEAGE WAS 4,500. UPDATED 11/13/17 *BF *TR
NHTSA ODI 11011130