2015 GMC CANYON Complaints

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

REAR BRAKE SQUEAK AND LONG STOPPING DISTANCE. ANTI-LOCKING FUNCTION DOES NOT ENGAGE AND THE BRAKING SYSTEM DOES NOT SKID/LOCK UP THE TIRES IN AN EMERGENCY STOP. REAR PADS DO NOT MATCH SIZE OF THE REAR DISCS. RUSTY DUST BUILD UP. GM HAS ATTEMPTED TO FIX 3X AND INDICATES THAT THERE IS NO FIX FOR THE ISSUE. SQUEAKING ON EVERY STOP WILL NOT ALLOW DRIVER TO DISCERN IF THE PADS ARE WORN OR NOT.

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.

BRAKES SQUEAK ON EVERY STOP. WILL NOT BE ABLE TO DETERMINE WHEN THE PADS NEED CHANGED SINCE THE SQUEAK IS SAME AS THE PAD WORN INDICATORS. ALSO VEHICLE WILL NOT STOP WITH ANTILOCK BRAKES OR SKID THE TIRES. IT STOPS, BUT IS MUSHY.

THE TRUCK CHUGS AND HESITATES RANDOMLY WHEN A DOWN SHIFT IS REQUIRED. GENERALLY THIS RANDOM HESITATION IS JUST ANNOYING. AT TIMES THE VEHICLE WILL NOT DOWNSHIFT FOR A CONSIDERABLE TIME. WHEN MAKING MANEUVERS IN AND AROUND TRAFFIC THE TRUCKS POOR SHIFTING CAUSES THE TRUCK TO JERK AND NOT ACCELERATE. WHEN THE TRUCK WILL EVENTUALLY DOES DOWN SHIFT THE GAS PEDAL MUST BE ALL THE WAY AT THE FLOOR AND ACCELERATES AT FULL SPEED. BULLETIN PIP5342A SUPPOSEDLY ADDRESSES THE CONCERN BUT SAYS IT IS NORMAL. GM TELLS THE DEALER NOT TO ATTEMPT TO FIX. I HAVE HAD MULTIPLE TIMES WHERE THIS PROBLEM HAS PUT ME AT RISK FOR AN ACCIDENT.

AT ABOUT 20,000 MILES THE AIR BAG LIGHT INTERMITTENTLY STARTED COMING ON WHILE DRIVING BUT WOULD BE RESET WHEN THE TRUCK WAS RESTARTED. AT ABOUT 26,000 THE AIRBAG LIGHT CAME ON THIS TIME PERMANENTLY. I TOOK THE TRUCK TO THE DEALER AND WAS TOLD THE AIR BAG SENSOR NEEDS TO BE REPLACE. THE PART WAS ORDERED AND NOW IT HAS BEEN A WEEK LATER AND THE PART STILL HAS NOT HAS BEEN RECEIVED.

I WOULD JUST LIKE TO ADD MY TRUCK TO THE COMPLAINTS. I AM AT 24000KM ON MY CANYON AND THE TRANSMISSION STILL HASN'T LEARNED ANYTHING. THE TRANSMISSION PROBLEMS ARE THE EXACT SAME AS THE OTHER COMPLAINTS ON HERE. ITS HORRIBLE AND UNSAFE DRIVING THIS TRUCK EVERYDAY IN THE CITY. THIS ISSUE NEEDS TO BE TAKEN CARE OF BEFORE AN ACCIDENT DOES HAPPEN. ISSUE: TRANSMISSION PROGRAMING

VEHICLE UPSHIFTS TOO EARLY AT LOW SPEEDS REQUIRING ADDITIONAL ACCELERATOR INPUT THEN DOWNSHIFTS 2 GEARS TO COMPENSATE. THIS HAPPENS REGULARLY WHEN GOING AROUND 15-20 MILES AN HOUR UPHILL OR WHILE MAKING RIGHT TURNS WHILE VEHICLE IS IN MOTION. WHEN THE VEHICLE IS SEARCHING FOR THE CORRECT GEAR THE ACCELERATOR PEDAL IS NUMB FOR AT LEAST 2 SECONDS REQUIRING AT LEAST 90 PERCENT THROTTLE THEN IT FINALLY PICKS A LOW GEAR AND VIOLENTLY THROWS THE DRIVER AND PASSENGERS BACK AND ROARS TO LIFE. THE 2 OR MORE SECONDS OF HESITATION COULD BE VERY DANGEROUS IN AN EMERGENCY SITUATION WHEN QUICK ACCELERATION IS NEEDED. MY CONCERNS WERE VOICED TO BOWSER BUICK GMC ON 02/02/2015 DURING MY FIRST OIL CHANGE. THEY INFORMED ME THAT GMC IS WORKING ON PROGRAMMING FOR THE SIERRA RIGHT NOW AND WHEN IT'S SATISFACTORY, THEY WILL IMPLEMENT IT ON THE CANYONS. NO REPAIR ATTEMPTS WERE MADE TO ADDRESS THIS CONCERN. THEY REFUSED TO MAKE ANY REPAIRS AND SAID THAT I WAS ADDED TO A LIST OF OTHERS WITH SIMILAR COMPLAINTS.