NHTSA Complaint #11164025 — 2015 GMC CANYON

HAD VEHICLE SERVICED UNDER WARRANTY SEVERAL TIMES FOR TRANSMISSION ISSUES. I WAS TOLD BY THE DEALER I HAD THE MOST CURRENT SOFTWARE UPDATES AS OF MARCH OF 2018. VEHICLE CONTINUES TO BEHAVE BADLY UNDER CERTAIN CIRCUMSTANCES. TRANSMISSION DOES NOT DOWNSHIFT PROPERLY IF NEEDING TO ACCELERATE HARD. ENGINE RPM'S REV TO ABOUT 5,000 RPM AND THE TRANSMISSION GOES INTO TOO LOW OF A GEAR, UNTIL THE CORRECT GEAR IS FOUND. THIS CAUSES A DELAY IN RESPONSE THAT CREATES A SAFETY HAZARD. HAD ONLY ONE INSTANCE WHERE THE TRUCK ACCELERATED HARD OUT OF A 90 DEGREE TURN EVEN THOUGH ONLY LIGHT PEDAL WAS USED. TRANSMISSION SHUTTERS UNDER LIGHT LOAD WHEN GOING UP A SLIGHT UPGRADE. DEALERSHIP DOESN'T NOT WANT TO ACKNOWLEDGE THERE IS A PROBLEM. I WAS TOLD I WOULD BE CONTACTED IF FUTURE UPDATES WERE AVAILABLE AND HAVE HEARD ABSOLUTELY NOTHING.