2012 GMC TERRAIN Complaints

EXCESSIVE ENGINE OIL CONSUMPTION 2 QUARTERS PER EVERY 3000 MILES. VEHICLE IS NOW 71K MILES I CHANGED THE OIL 3 WEEKS AGO AND IT WAS MISSING 2.5 QUARTERS OF OIL I HAVE DRIVEN THE CAR AROUND 800 MILES AFTER THE OIL CHANGE AND IS HALF WAY ON THE DEEP STICK AM AFRAID IF I KEEP DRIVING IT FOR 3 TO 4K MILES IT WILL BE VERY LOW ON OIL AGAIN AND I PURCHASED THIS CAR 7 MONTHS AGO FRO THE DEALERSHIP AND IT HAD 55K MILES AT THE TIME I ALWAYS NOTICED TO BE LOW OF MOTOR OIL AND I THOUGHT IT WAS NORMAL BUT IT'S GETTING WORSE BY THE TIME GOING BY. I THINK IS TOO SOON TO BE BURNING MOTOR OIL AT THOSE LOW MILES.

I HAVE HAD THIS CAR FOR LESS THAN A YEAR, BOUGHT FROM A DEALER, AND I HAVE CHECKED THE BACKGROUND TO WHICH THERE HAVE NOT BEEN ANY TYPE OF ACCIDENT OR DAMAGE FROM WHAT WAS PROVIDED TO ME. IT RANDOMLY STARTED SHAKING UNCONTROLLABLY AND SHUTTING OFF WHILE I WAS DRIVING. NOW MIND YOU, AS A PREGNANT WOMAN DRIVING ON THE HIGHWAY, THIS IS NOT SAFE. MY ENGINE LIGHT TURNED ON. THOUGH I COULD HAVE GOTTEN IN AN ACCIDENT, BY THE GRACE OF GOD PEOPLE MOVED OUT THE WAY AND ALLOWED ME TO GET OFF AND TO THE SIDE.

TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE SUDDENLY LOST ACCELERATION POWER. THE CONTACT ALSO STATED THAT WHILE AT A STOP THE ENGINE STALLED. THE FAILURE OCCURRED ON TWO DIFFERENT OCCASIONS. THE VEHICLE WAS TOWED TO THE DEALER BOTH THE TIMES WHERE IT WAS DIAGNOSED THAT THE ENTIRE ENGINE AND THE TRANSMISSION NEEDED TO BE REPLACED. THE CONTACT STATED THAT ONLY THE ENGINE WAS REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 106,122.

THE VEHICLE HAS EXCESSIVE OIL CONSUMPTION. I HAVE TO ADD 3 QTS BETWEEN EVERY OIL CHANGE TO BRING IT BACK TO THE CORRECT LEVEL. I KNOW WHEN IT NEEDS THIS BECAUSE THE VALVE TRAIN GETS VERY LOUD AS IT IS STARVED FOR LUBRICATION. IT ALSO WILL HAVE IRREGULAR RPM LEVELS FROM TIME TO TIME AS WELL AS HARD STARTS. VEHICLE HAS 40K MILES ON IT. I HAVE BEEN HAVING TO DO THIS FOR THE LAST 10-12K MILES UNTIL I HEARD OF THIS BULLETIN. *TR

OIL CONSUMPTION ISSUE: I REALIZED ABOUT 3 MONTHS AGO THAT MY CAR ENGINE WOULD SHAKE A BIT ON START UP AND DURING IDLE. I TOOK IT INTO THE DEALERSHIP FOR A DIAGNOSTIC TEST AND WAS TOLD THAT THERE WAS VERY LITTLE OIL IN THE CAR AND THAT IT WAS BURNT. I WAS VERY SURPRISED BECAUSE I HAVE NEVER HAD AN ISSUE LIKE THIS BEFORE. SO WE GOT AN OIL CHANGE AND THAT WAS THAT. ENGINE STILL SHOOK ON IDLE AND DURING STARTUP. 5000 MILES LATER I REALIZE THAT IT IS TIME FOR AN OIL CHANGE AND CHECK THE DIP STICK AND FIND THAT NOTHING APPEARS ON IT, INDICATING THAT IT IS SHORT AT LEAST 1.25 QUARTS. I FILL IT UP WITH 0.5 QUARTS AND STILL NOTHING ON THE DIP STICK. I HAVE LOOKED ONLINE AND SEEN THAT MANY OTHERS HAVE HAD THIS ISSUE OF OIL CONSUMPTION WITH 2010-2013 TERRAINS AND THAT THERE IS A BULLETIN ON IT (BELOW): HTTP://GM.OEMDTC.COM/1893/EXCESSIVE-OIL-CONSUMPTION-2010-2013-BUICK-CHEVROLET-GMC#COMMENT-1224 I CALL THE DEALERSHIP AND THE GMC CUSTOMER SERVICE LINE, CHECK MY VIN AND THEY SAY THERE ARE NO RECALLS ON MY CAR. WHAT AM I TO DO? THIS IS AN ONGOING ISSUE THAT MANY OTHERS HAVE COMPLAINED ABOUT IN BULLETINS AND ON THE WEBSITE ABOVE. I FEEL THAT THIS ISSUE HAS DONE ITS DAMAGE ON THE ENGINE AND IS GOING TO COST ME THOUSANDS TO REPAIR. *TR

TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED THAT THE AIR CONDITIONING WAS NOT WORKING AND LEAKED INSIDE THE VEHICLE ON BOTH SIDES DURING THE SUMMER MONTHS. THE CONTACT ALSO STATED THAT THE HEATER DID NOT WORK IN THE WINTER. THE VEHICLE WAS DIAGNOSED BY AN INDEPENDENT MECHANIC WHO COULD NOT DETERMINE THE NATURE OF THE FAILURE. THE MANUFACTURER WAS NOT NOTIFIED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 27,000.

1.) MY WINDOWS WILL NOT DEFROST. WHEN I'M DRIVING ON A CURVY HIGHWAY TO AND FROM WORK AT NIGHT IT DOGS UP SO BAD THAT I CAN'T SEE ANYTHING IN FRONT OF ME. I'VE ALMOST GOTTEN IN A DOZEN CAR ACCIDENT BECAUSE OF THIS ISSUE. 2.) CAR SMELLS LIKE MOLD IS COMING OUT OF VENT 3.) MY CAR MAKES A TERRIBLE SOUND WHEN I ACCELERATE FROM 0-30MPH. *TR

ON THE 2.4L ECOTEC ENGINE, THE PCV ORIFICE IN THE INTAKE MANIFOLD BECOMES CLOGGED WHICH CAUSES OIL TO BE PULLED INTO THE ENGINE COMBUSTION CHAMBER AND BURNED. THIS CAUSES AN EXCESS BUILD UP OF CARBON INSIDE THE ENGINE AND ON THE SPARK PLUGS WHICH IN TURN CAUSES THE VEHICLE TO IDLE ROUGHLY AND STALL OUT WHILE SITTING IDLE, SUCH AS AT A STOP LIGHT. GM HAS ISSUED A SPECIAL COVERAGE SERVICE BULLETIN (#: 14882) BUT ONLY FOR SPECIFIC VIN'S. IT HAS BECOME KNOWN THAT THERE ARE MANY OTHER VEHICLES THAT FALL UNDER THE YEAR GROUPS STATED BY GM IN THEIR SERVICE BULLETIN, EVEN IF IT'S A VIN THAT THEY DEEM IS SAFE FROM THE PROBLEM, BUT THEY REFUSE TO RECALL THE VEHICLES EVEN IF THEY ARE AFFECTED BY THE KNOWN PROBLEM. THIS IS A SAFETY ISSUE THAT CAUSES THE VEHICLE TO DIE WHILE TRYING TO LEAVE FROM A STATIONARY POSITION ONCE THE ENGINE HAS WARMED UP, FOR EXAMPLE PASSING THROUGH AN INTERSECTION AFTER A RED LIGHT. *TR

TL* THE CONTACT OWNS A 2012 GMC TERRAIN. WHILE DRIVING APPROXIMATELY 35 MPH, THERE WAS AN ABNORMAL NOISE COMING FROM THE ENGINE AND THE VEHICLE STARTED TO DECELERATE. THE CONTACT COASTED INTO A PARKING LOT AND NOTICED AN OIL ODOR AROUND THE VEHICLE. THE CONTACT NOTICED THAT THE VEHICLE WAS LEAKING OIL ALL OVER THE PARKING LOT. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE PCV VALVE WAS FROZEN AND WAS NOT CIRCULATING CAUSED BY EXCESSIVE PRESSURE LEAKING OUT OIL. THE INTAKE MANIFOLD AND CAM COVER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 11,000. THE CONSUMER REQUESTED AN UPDATE OF THE INVESTIGATION CONCERNING THE VEHICLE'S PCV VALVE. *JS

TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED THAT THE WINDSHIELD WIPER TRANSMISSION ON THE DRIVER SIDE WAS CORRODED AND FAILED TO WORK. IT WAS DIFFICULT TO DRIVE THE VEHICLE SAFELY. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DETERMINED THAT IT WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 16V582000 (VISIBILITY). THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 95,000.