2015 GMC Canyon

TRUCK TRANSMISSION CAUSES DANGEROUS DRIVING CONDITIONS I HAVE SAME COMPLAINT AS SEVERAL OTHERS IN THE NHTSA CUSTOMER COMPLAINT SECTION. BASICALLY THE TRANSMISSION FAILS TO DOWNSHIFT AT LOWER SPEEDS CAUSING THE VEHICLE TO HESITATE WHEN ACCELERATION IS NEEDED UNTIL IT DOWNSHIFTS APPROPRIATELY. PRESSING DOWN HARD ON THE ACCELERATOR WILL RESULT IN A DOWNSHIFT, BUT THIS IS A POTENTIALLY DANGEROUS MANEUVER IN CROWED ROAD CONDITIONS.

WHILE DRIVING AT A STEADY SPEED, WHEN ATTEMPTING TO LIGHTLY OR MODERATELY ACCELERATE, A LACK OF POWER IS NOTICED DUE TO TORQUE CONVERTER LOCKUP. ENGINE COMES CLOSE TO STALLING OUT. IN MAY 2016, I WAS INFORMED GM ENGINEERING WAS AWARE OF THE PROBLEM WERE WORKING ON A SOLUTION. DURING A FOLLOWUP VISIT IN SEPTEMBER 2016, I WAS INFORMED THAT GM NO LONGER CONSIDERED IT A PROBLEM AND WERE NO LONGER WORKING ON A SOLUTION. GM TAC # 8-2110571583. THERE HAS NOT BEEN A SPECIFIC ACCIDENT RELATED TO A LACK OF ACCELERATION WHEN EXPECTING TO ACCELERATE, THERE REMAINS THE POTENTIAL ESPECIALLY WHEN MERGING INTO FREEWAY TRAFFIC DURING PEAK TRAVEL TIMES. THE GM DISTRICT SERVICE MGR DROVE THE TRUCK AND INFORMED ME THAT THERE WAS NO ISSUE AS HE DROVE THE SAME VEHICLE TYPE AND HAD THE SAME PERFORMANCE. PER RECENT GM MARKETING, THE 2017 GMC CANYON FEATURES A COMPLETELY RE-DESIGNED TRANSMISSION. I BELIEVE THIS ISSUE WITH THE TRANSMISSION IS A SAFETY ISSUE CAUSED BY A POORLY DESIGNED TRANSMISSION.

I HAVE SAME COMPLAINT AS SEVERAL OTHERS IN THE NHTSA CUSTOMER COMPLAINT SECTION. BASICALLY THE TRANSMISSION FAILS TO DOWNSHIFT AT LOWER SPEEDS CAUSING THE VEHICLE TO HESITATE WHEN ACCELERATION IS NEEDED UNTIL IT DOWNSHIFTS APPROPRIATELY. PRESSING DOWN HARD ON THE ACCELERATOR WILL RESULT IN A DOWNSHIFT, BUT THIS IS A POTENTIALLY DANGEROUS MANEUVER IN CROWED ROAD CONDITIONS. I HAVE ALSO GONE TO MANUAL TRANSMISSION MODE BUT THIS IS ALSO POTENTIALLY DANGEROUS IN CROWDED CONDITIONS AND CERTAINLY INCONVENIENT. SEEMS THE VOLUME OF THIS COMPLAINT WARRANTS A GMC RESPONSE.

THE TRANSMISSION DOES NOT DOWN SHIFT WHEN CLIMBING A SMALL HILL IN NORMAL TRAFFIC AT NORMAL SPEEDS. I CONSTANTLY HAVE TO USE THE MANUAL TRANSMISSION TO MAKE THE TRUCK DOWNSHIFT OR I HAVE TO PRESS ON THE GRASS IN ORDER TO BRING THE RPM UP A LITTLE HIGHER USING MORE FUEL THAN REQUIRED. THIS IN ITSELF IS DANGEROUS SINCE I AM IN THEN MIDDLE OF TRAFFIC. WHEN I PURCHASED THE TRUCK NONE OF THE RECALL WERE ON CARAFE NOR DID THE DEALER INFORM ME THAT THIS VEHICLE TYPE AND MODEL HAS ALREADY HAD SEVERAL RECALLS AFFECTING ITS PERFORMANCE AND SAFETY. THERE IS ALSO SOMETHING WRONG WITH THE DEFROST SYSTEM WHETHER ITS ON HEAT OR COOL. THERE IS A RATTLING NOISE THAT CAN BE HEARD OVER THE FAN NOISE WHEN THE VEHICLE AIR CONDITIONER IS SWITCH TO THE DEFROST MODE. I AM TRULY DISAPPOINTED AND VERY CONCERNED FOR MY SAFETY. GM SHOULD HAVE PULLED THIS VEHICLE OFF THE MARKET!

VEHICLE WILL NOT DOWN SHIFT WHEN SLOWING FROM A HIGHER SPEED AND THEN NEEDING TO ACCELERATE. VEHICLE WILL "CHUG" AND SQUAT UNTIL IT EVENTUALLY DOWN SHIFTS, OFTEN TIMES THROUGH TWO OR MORE GEARS CAUSING OVER ACCELERATION AND OVER REVVING OF ENGINE. COUPLE OF TIMES WHEN COMING TO FULL STOP AT STOP SIGN, VEHICLE STAYS IN 5TH OR 6TH GEAR UPON ACCELERATION FOR A FEW SECONDS AND THEN JUMPS GEARS TO PICK UP SPEED. DRIVING ON CRUISE IN MODERATE HILLS, VEHICLE WILL NOT DOWN SHIFT SOON ENOUGH UNTIL EVENTUALLY ENOUGH SPEED IS LOST THAT VEHICLE DOWN SHIFTS MULTIPLE GEARS FROM APPROXIMATELY 1800 RPM TO WELL OVER 3000. PROBLEM MANIFESTS ITSELF IN BOTH CITY AND HIGHWAY DRIVING.

TRANSMISSION DOES NOT SHIFT PROPERLY WILL NOT DOWN SHIFT HESITATING AND FEELS LIKE TRUCK IS MISFIRING RUFF SHIFTS CLUNKING SOUND PROBLEMS START AT ABOUT 20 MPH WHEN TRYING TO SPEED UP IN TRAFFIC TRUCK WILL NOT DOWN SHIFT OR WILL DOWNSHIFT TO VIOLENTLY CAUSING TRUCK TO LUNDGE FORWARD AND NEARLY REAR-END CAR IN FRONT THIS IS DANGEROUS AND COULD CAUSE AN ACCIDENT GM SEEMS TO BE IGNORING THIS PROBLEM EVEN THOUGH THERE SEEMS TO BE QUITE A FEW PEOPLE WITH THE SAME COMPLAINT

AT LOW SPEEDS, DOESN'T MATTER IF YOU ARE TURNING OR GOING STRAIGHT, THE TRANSMISSION WILL NOT SHIFT PROPERLY WHEN APPLYING PRESSURE TO THE GAS PEDAL. IT FEELS LIKE YOU ARE DRIVING A MANUAL TRANSMISSION IN 4TH GEAR WHEN IT SHOULD BE IN 2ND. WHEN IT DOES SHIFT, IT WILL DROP TWO GEARS AND YOU COULD BE ON TOP OF THE CAR IN FRONT OF YOU. THE CANYON'S TRANSMISSION IS NOT PREDICTABLE AND COULD PUT YOU IN A DANGEROUS POSITION IN TRAFFIC. HAVE HAD THE VEHICLE AT THE DEALER WHERE THEY APPLIED AN UPDATE PER A GM BULLETIN, HELPED SOME BUT STILL HAVE THE PROBLEM. TRANSMISSION MAKES A TERRIBLE GRINDING/HOWLING NOISE AT LOW SPEED. GM SAYS THIS IS A NORMAL CHARACTERISTIC OF THIS TRUCK, I SAY IT IS DANGEROUS. GM NEEDS TO BETTER ADDRESS THIS PROBLEM THAN THEY HAVE. THIS HAPPENS EVERYDAY THE TRUCK IS DRIVEN.

WHILE DRIVING AT LOW SPEEDS THE TRANSMISSION SEEMS TO FLOAT BETWEEN GEARS AS IF TRYING TO FIND THE PROPER GEAR. NORMALLY IT TAKES SO LONG THAT I HAVE TO PUSH DOWN ON THE GAS TO FORCE THE TRUCK TO SHIFT. IT DOES TO A LOWER GEAR WHICH MAKES IT JUMP FROM THE EXCESS POWER. AT HIGH SPEEDS, PRESSING ON THE GAS PEDAL IS NON RESPONSIVE AS THE TRANSMISSION CONTINUES TO LOOK FOR THE RIGHT GEAR. A MANUAL FIX FOR SAFETY PURPOSES (ESPECIALLY IN TRAFFIC AND NEED AN ANSWER FROM MY TRANSMISSION) IS TO CHANGE IT TO MANUAL SHIFTING WHERE I CONTROL THE GEARS. THIS IS A BAND AID FIX AT THE MOMENT AND IS QUITE INTERESTING THAT I AM ABLE TO SHIFT MY VEHICLE BETTER THAN A COMPUTER. PLEASE LOOK INTO THIS ISSUE. I AM GOING TO TAKE IT TO THE DEALERSHIP BUT AS I READ IN THE NUMEROUS REPORTS FROM OTHER 2015 CANYON OWNERS....GMC IS NOT ADMITTING OR DOES NOT HAVE A FIX. THIS ISSUE OCCURS ALL THE TIME SO SELECTING A DATE OF WHEN THIS ISSUE HAPPENED IS NOT EFFECTIVE.