NHTSA Complaint #10811142 — 2015 GMC CANYON

VEHICLE SHIFTING LAGS AND HESITATES THEN ENGAGES ABRUPTLY CAUSING UNSAFE ACCELERATION. SPECIFICALLY ENTERING AN ON-RAMP. WHEN TRYING TO MERGE INTO TRAFFIC FROM A SLOWER RAMP SPEED TO JOIN HIGHWAY SPEEDS THE VEHICLE STRUGGLES TO FIND THE PROPER GEAR. IN ORDER TO OFFSET THIS PROBLEM THE DRIVER NEEDS TO DEPRESS THE ACCELERATOR FURTHER TO HELP THE TRANSMISSION DOWNSHIFT TO A LOWER GEAR. HOWEVER, DOING SO WHILE THE TRANSMISSION IS SEARCHING FOR THE PROPER GEAR CAUSES THE VEHICLE TO SUDDENLY LURCH FORWARD WITH MORE FORCE AND ACCELERATION THEN IS REQUIRED OR SAFE. I HAVE BROUGHT MY TRUCK INTO THE DEALERSHIP TWICE FOR THIS ISSUE AND WAS TOLD THAT GM STATES THAT THIS IS THE NORMAL OPERATING CONDITIONS OF THE TRUCK. I FEEL THIS IS NOT AN ADEQUATE RESPONSE AND CERTAINLY DOES NOTHING TO ADDRESS THE SAFETY ISSUE OF A TRANSMISSION THAT DISENGAGES TO SEARCH FOR A PROPER GEAR AND THEN REENGAGES ABRUPTLY CAUSING THE DRIVER TO MAKE UNNECESSARY AND UNSAFE ADJUSTMENTS TO KEEP THE VEHICLE UNDER CONTROL.