NHTSA Complaint #11246588 — 2016 CHEVROLET COLORADO

THE TRANSMISSION IS EXTREMELY SLOW TO DOWNSHIFT. AS YOU CONTINUE TO PUSH THE GAS PEDAL, IT WILL FINALLY DOWNSHIFT, SOMETIMES TWO GEARS, AND SUDDENLY ACCELERATE. WHEN ON CRUISE CONTROL, YOU LOOSE ABOUT FOUR MPH BEFORE IT FINALLY DOWNSHIFTS, AGAIN SOMETIMES DOWNSHIFTING TWO GEARS. IN TRAFFIC, THE CAR BEHIND YOU DOESN'T ANTICIPATE THE LOSS OF SPEED AND THEN YOU SUDDENLY ACCELERATE. IT HAPPENS AT ALL SPEEDS, BUT IS PARTICULARLY UNSAFE AT LOW SPEEDS WITH THE SUDDEN ACCELERATION. THIS IS PROBABLY A SOFTWARE PROBLEM AS THE TRANSMISSION SHIFTS MUCH MORE NORMALLY IF YOU PUT IT IN 'TOW/HAUL' MODE. THE DEALER SAYS THIS IS 'NORMAL' AND GM CALLS IT ' TORQUE MANAGEMENT '. IT IS ESPECIALLY UNSAFE IN SLICK CONDITIONS OR RAINY ROADS. BTW, I HAVE A 2017 IMPALA WITH THE SAME SIX SPEED AND V-6, AND IT DOES NOT EXHIBIT THIS RELUCTANCE TO DOWNSHIFT. THANK YOU.