2015 GMC Canyon Powertrain & Transmission Problems

Ignition locking solenoid fails to release when put into park, resulting in the key stuck in the ignition. I'm then unable to leave the vehicle unattended without threat of theft or battery failure. Dealer has not been able to fix the issue. No warnings or failure indications are observed, other than the key being stuck.

January 25, 2021 - Transfer Case Module Internal Electrical Failure. February 16, 2022 - 4-Wheel Drive Transfer Case Encoder Motor Sticking/Failure. Computer Codes C0396 and C0387.

TL* THE CONTACT OWNS A 2015 GMC CANYON. THE CONTACT STATED WHILE THE VEHICLE WAS STATIONARY, THE SERVICE 4WD WARNING LIGHT ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A LOCAL DEALER NOR INDEPENDENT MECHANIC TO BE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE HOWEVER, NO ADDITIONAL ASSISTANCE WAS PROVIDED. THE FAILURE MILEAGE WAS APPROXIMATELY 44,430.

SERVICE 4WD MESSAGE AGAIN APPEARS. WHEN DRIVING AND SWITCHING INTO 4WD RECEIVED THIS MESSAGE. THIRD TIME, NEEDS "REPROGRAMMING" . FILED COMPLAINT WITH GM ABOUT A DESIGN FLAW AND NO SATISFACTION.

I WAS TAKING OFF FROM A STOP SIGN AND TURNING RIGHT INTO TRAFFIC. ACCELERATION WAS MODERATE WHILE COMPLETING THE TURN WHERE I HAD TO REDUCE THE THROTTLE TO PREVENT THE TIRES FROM SPINNING. THE TRANSMISSION SHIFTED INTO TOO HIGH OF A GEAR AS A RESULT AND DID NOT DOWNSHIFT WHEN 50% PLUS THROTTLE POSITION WAS APPLIED. ENGINE HAD LACK OF POWER. I HAD TO STOMP IT TO THE FLOOR TO GET IT TO DOWNSHIFT. BY THIS TIME TRAFFIC WAS COMING UP ON ME FAST BECAUSE OF THE EXCESSIVE DELAY TRYING TO GET THE TRANSMISSION TO RESPOND. THE TRUCK HAS THE MOST CURRENT SOFTWARE UPDATES BASED ON WHAT THE DEALERSHIP TOLD ME.

VEHICLE STALLS THEN JERKS FORWARD WHEN ACCELERATING AND DECELERATING. JERKING CAUSES BRIEF LOSS OF CONTROL AS VEHICLE LURCHES FORWARD WHILE TRANSMISSION ATTEMPTS TO CATCH UP. THIS OCCURS AT ANY MOMENT WHILE DRIVING (UPHILL, DOWNHILL, TURNING, CITY STREETS AND HIGHWAYS) SEEMS TO OCCUR MOST WHEN SPEEDS ARE UNDER 60 MPH. CAUSES VERY UNSAFE CONDITIONS AND CHECK ENGINE LIGHT GOES ON AND OFF. OCCURRED TODAY AND HAS OCCURRED ALMOST EVERYDAY SINCE I'VE OWNED THE VEHICLE. (2 YEARS)

VEHICLE HAS A BAD SHUDDER WHERE IT IS CAUSING DRIVABILITY ISSUES. THIS OCCURS MAINLY WHEN DRIVING UP AN INCLINE WHEN AT ABOUT 1200 RPM. TRUCK WILL SOMETIMES JERK AND SHAKE AND HAS POOR THROTTLE RESPONSE CAUSING DANGEROUS DRIVING CONDITIONS. THIS HAS HAPPENED SEVERAL TIMES OVER THE COARSE OF ABOUT 3 MONTHS WITH THE LAST INSTANCE OCCURRING TODAY.

TRANSMISSION STARTED SHUDDERING VERY BADLY WHEN TAKING OFF FROM A STOP SIGN UNDER WET CONDITIONS. THIS OCCURRED WHEN THROTTLE WAS REDUCED AFTER THE REAR WHEELS BROKE TRACTION. GM KNOWS ABOUT THE TRANSMISSION ISSUES AND THE DEALERSHIP HAS REFUSED TO REPAIR IT.

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.

WHILE DRIVING WITH VEHICLE IN FOUR WHEEL AUTO THE TRANSFER CASE ENGAGED IN TO 4 WHEEL HIGH AND WOULD NOT DISENGAGE. THIS WOULD BE MORE OF GREAT SAFETY CONCERN IN THE EVENT THAT A DRIVER IS NOT ABLE TO PULL OVER AND STOP. THE VEHICLE WOULD NOT DISENGAGE THE FOUR WHEEL DRIVE AND REQUIRED TO BE TOWED TO DEALERSHIP. THE WORK PERFORMED TO CORRECT THIS ISSUE INDICATED THERE WAS AN EXCESSIVE AMOUNT OF CORROSION IN THE THE CONNECTORS RELATED TO THE "RANGE SELECTOR" AND OTHER RELATED COMPONENTS. THIS APPEARED TO FIX THE ISSUE, HOWEVER THE ISSUE HAS RESURFACED OVER TIME AND AGAIN SEEMS RELATED TO CORROSION. IN MORE RECENT OCCURRENCES THE VEHICLE ENGAGED INTO FOUR WHEEL DRIVE WHILE DRIVING AND IT WAS NOT SET IN FOUR WHEEL AUTO. THIS IS EXTREMELY CONCERING AS I STOPED USING FOUR WHEEL AUTO BECAUSE OF THIS PAST EVENT. AGAIN THIS ENGAGEMENT OF THE FOUR WHEEL DRIVE WHEN THE DRIVER IS NOT ABLE TO RESPOND ACCORDINGLY COULD LEAD TO INJURY.

THE TRANSMISSION CAUSES DANGEROUS DRIVING CONDITIONS. I HAVE THE SAME COMPLAINT AS SEVERAL OTHERS HAVE REPORTED.THE TRANSMISSION FAILS TO DOWNSHIFT AT LOWER SPEEDS CAUSING THE HESITATION WHEN ACCELERATION IS NEEDED. PRESSING DOWN FURTHER ON THE ACCELERATOR WILL LUNGE FORWARD POSSIBLE INTO CROWED ROAD WAY.

THE TRUCK FALLS ON IT'S FACE WHEN ACCELERATING AFTER SLOWING DOWN. THE DEALERSHIP SAYS NOTHING IS WRONG. THIS IS A DANGEROUS SITUATION. I HAVE TALKED WITH OTHER CANYON OWNERS AND THEY HAVE THE SAME PROBLEM.

HAVE 20000 MILES ON TRUCK AND TRANSMISSION STILL DOES ACCELERATE SMOOTHLY.THERE IS HESITATION WHILE TRANSMISSION FIND RIGHT GEAR.WHILE TOWING TRAVEL TRAILER TRANSMISSION WILL ACCELERATE BUT NOT DEACCELERATE TILL I REDUCE SPEED MANUALLY.VERY DANGEROUS.

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.

AUTOMATIC TRANSMISSION. WHEN GOING UP A SLIGHT INCLINE TRANSMISSION STALL ON DOWN SHIFTING.DRIVER MUST FLOAT THE GAS PEDDLE OR PRESS FOR ADDITIONAL ACCELERATION IN ORDER TO CLIMB A SLIGHT INCLINE ON REGULAR ROAD TRAFFIC . INCLINE COULD BE NO MORE THAN 15 DEGREES

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!

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.

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.

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.