There are 10 owner-reported body & structure complaints for the 2012 GMC Terrainin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED THAT RAIN ENTERED THE VEHICLE AND SOAKED THE DRIVER AND PASSENGER SIDE FLOOR. THE VEHICLE WAS TAKEN TO PENSKE BUICK GMC OF CERRITOS (18400 STUDEBAKER RD, CERRITOS, CA 90703), BUT THEY WERE UNABLE TO DIAGNOSE WHERE THE RAIN WAS ENTERING. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 86,644. *TT*JB
TO WHOM IT MAY CONCERN: PLEASE NOTE THAT I HAVE OBSERVED MY VEHICLE A PROFOUND AMOUNT OF WATER ENTERING THE VEHICLE SOMEWHERE WITHIN, AT, OR IN VICINITY OF THE FRONT PASSENGER SIDE OF THE VEHICLE AND DRIVER'S SIDE (FRONT). THIS OCCURS DURING RAIN-FALL. MY VEHICLE BEGAN DISPLAYING AN ODOR AND SHOWING WHITE-YELLOWISH COLORED MATTER IN THE CARPET AREA. THE WATER IS NOW DEVELOPED INTO A PUDDLE ON THE PASSENGER - SIDE AND CARPET SOAKED ON THE DRIVER'S SIDE (THE LOST OF FOOTING ON THE DRIVER'S SIDE, MAKES IT SOMETIMES DIFFICULT WHEN DRIVING, AND SHIFTING MY FOOT FROM THE ACCELERATOR TO (AND) BRAKING (TO STEER, AND PERFORMING TURNING MANEUVERS). I HAVE RESEARCHED AND NOTED SEVERAL CONSUMER CHAT PAGES, IN WHICH CONSUMERS HAVE DISCUSSIONS EXPERIENCING THE PROBLEM OF WATER LEAKING INTO THEIR GMC TERRAIN, AND OTHER GMC VEHICLES.
TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED THAT THE LIFTGATE FAILED TO FUNCTION PROPERLY AND WOULD LOWER VERY QUICKLY WHEN ACTIVATED. NORMAN GALE BUICK GMC (973-267-1100, 1247 NJ-10, CEDAR KNOLLS, NJ 07927) WAS CONTACTED, BUT THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 66,867.
MY GRANDDAUGHTER AND I WERE PARKED OUTSIDE A GROCERY STORE. WE CAME OUT WITH SEVERAL BAGS AND MY GRANDDAUGHTER OPENED THE BACK LIFT GATE. IT WENT UP AND THEN CAME BACK DOWN AGAIN. IT DIDN'T STAY UP. I TRIED TO OPEN IT AGAIN WITH MY KEY AND IT DID THE SAME THING. WENT UP, HESITATED AND CAME BACK DOWN AGAIN. I STOPPED OPENING THE GATE AND PUT BAGS INSIDE. I TOOK HER HOME THEN DROVE HOME MYSELF. I SHOWED MY HUSBAND WHAT THE BACK GATE WAS DOING. I CALLED THE FORD DEALER I BOUGHT MY TERRAIN FROM LAST YEAR (FEBRUARY 2017) AND GOT APPOINTMENT FOR SERVICE TODAY. THE FORD SERVICE CALLED THE CHEVROLET SERVICE AND REFERRED ME TO THEM FOR SERVICE. I TOOK THE CAR TO THE CHEVROLET DEALER WHO CHECKED IF MY CAR WAS ON ANY RECALL, SHE SAID THE VIN WAS NOT INCLUDED IN ANY RECALLS, BUT WE BOUGHT AN EXTENDED WARRANTY WHICH MAY COVER THE COSTS. HOWEVER, I HAVE TO PAY THE FIRST $200 OF ANY SERVICE REPAIRS. I DON'T BELIEVE THE BACK GATE SHOULD STOP WORKING WHEN THE REST OF MY CAR WORKS FINE. IS THERE ANYTHING I CAN DO TO GET HELP TO REPAIR MY CAR'S BACK GATE?
WHEN TRYING TO OPEN THE REAR LIFTGATE THE DOOR WILL OPEN COMPLETELY THEN QUICKLY CLOSE HALFWAY, OPEN COMPLETELY AGAIN, THEN QUICKLY CLOSE SHUT MAKING IT IMPOSSIBLE TO SAFELY PUT ANYTHING INTO OR REMOVE FROM THE TRUNK OF THE CAR. THERE IS A RECALL FOR THIS ISSUE ON THE ACADIA'S ALREADY.
TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED THAT THE LIFTGATE FAILED TO FUNCTION PROPERLY. THE CONTACT STATED THAT THE TRUNK FAILED TO REMAIN OPEN AND CLOSED INDEPENDENTLY. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 76,325.
TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED THAT THERE WAS SEVERE CORROSION ON THE REAR DRIVER SIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE TECHNICIAN DIAGNOSED THE DOOR WAS INCORRECTLY SEALED AND NEEDED TO BE REPLACED. NO REPAIRS WERE MADE TO THE VEHICLE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 60,000.
MY DASH IS CRACKING FOR NO APPARENT REASON. IT'S TO A POINT NOW OF NEEDING REPLACED AND HAS RAISED MY SAFETY CONCERN FOR MYSELF AND PASSENGER IF I WAS TO COME INVOLVED IN A CRASH BY BROKEN LARGE PLASTIC FRAGMENTS.
ON 8/2/12 I PURCHASED MY GMC TERRAIN BRAND NEW IN ASHLAND CITY, TN. I MOVED TO WEST PALM BEACH IN OCTOBER 2012. THE CURRENT MILES ON THE VEHICLE ARE 44,039. I GOT AN OIL CHANGE, FILTER AND MULTI-POINT INSPECTION ON 10/24/13 BY THE LOCAL GMC DEALER. ON 10/23/13 I TOOK MY VEHICLE IN TO HAVE A RECALL REPAIRED AT SCHUMACHER BUICK/GMC. THE RECALL # IS 12312. A MONTH LATER THE VEHICLE WOULD LUNGE SHARPLY FORWARD WHILE DRIVING AND A HEAVY SHAKING VIBRATION (BOTH WHILE DRIVING AND AT A STOP) BELOW MY FEET IN THE VEHICLE (FLOOR BOARD). I TOOK THE VEHICLE TO SCHUMACHER BUICK/GMC 3031 OKEECHOBEE BLVD, ON 11/11/13 AND IT REMAINED UNTIL 11/15/14 AND THE PROBLEM WAS NOT IDENTIFIED. I RETURNED THE VEHICLE FOR THE SAME PROBLEM ON 12/21/13 (SAME DEALER) AND IT WAS PICKED UP ON 12/31/13. THE FIRST SERVICE ADVISOR WAS ROB DEAL HE TOLD ME THAT THE VEHICLE SHIFTS ITS DRIVABILITY TO THE DRIVER AND NOTHING WAS WRONG. I TOOK MY VEHICLE BACK A SECOND TIME FOR THE SAME PROBLEM THIS TIME (IT WAS GETTING WORST) MY REP WAS "[XXX]". HE SAID IT WAS THE "ECO" BUTTON IN THE CAR, IF PUSHED MAKES THE CAR RUN ROUGH." ON MARCH 7, 2014, I CONTACTED GMC CORPORATE OFFICE AND SPOKE TO SHERRY AND REQUESTED A FULL ANALYSIS OF MY CAR. THIS TIME I WENT TO ANOTHER GMC DEALER LOCALLY (LAKE PARK SCHUMACHER) AND MY SERVICE TECH WAS [XXX]. PER [XXX] IT IS A TRANSMISSION ISSUE -LEFT ON MY VOICEMAIL AND SAVED" SPECIFICALLY HE SAID IT WAS THE "CONTROL PRESSURE VALVE CAUSING IT TO LUNGE FORWARD AND IT WAS IMPROPER." HE SAID IT WAS "UNCOMMON TO SEE THIS ISSUE." THE REASON I TOOK THE VEHICLE IN IS THAT I ALMOST REAR ENDED TWO PEOPLE WHILE DRIVING DUE TO THE VEHICLES LUNGES AND HAVE MY BODY JOLTED INTO THE GLASS THE FORCE WAS SO STRONG WITH THE LUNGE. I FEAR FOR MY SAFETY AND THAT OF MY 12 YEAR OLD DAUGHTER IN THIS CAR. I WAS CONTACTED ON 3/13/14 THAT THE VEHICLE WAS READY FOR PICK-UP AND IT HAD BEEN FIXED. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
THE DATA I ENTERED FOR "FAILURE MILEAGE" AND "SPEED AT TIME OF INCIDENT" SHOULD NOT BE USED AS CONCRETE DATA BECAUSE FOR THE MOST PART FROM ROLLING UP VERY SLOW DRIVING WOULD BE MORE ACCURATE (WITHOUT GIVING GAS). I AM 47, AND DRIVING SINCE 18. I AM A MECHANIC, WORKED TELEPHONE, DATA, PRESENTLY A NURSE. I HAVE DRIVEN MANY CARS. I HAVE OWNED, OR CO-OWNED A LEAST 15 CARS. I AM ALWAYS ON THE ROAD IN ALL CONDITIONS. ALL MY PAST PROFESSIONS REQUIRED PLENTY DRIVING. I HAVE DRIVEN THE ABOVE MENTIONED VEHICLE FOR LITTLE OVER 2 MONTHS. THERE IS A SIGNIFICANT BLIND SPOT TO THE FRONT RIGHT- WHERE THE FRONT MIRROR JOIN THE FRONT RIGHT DOOR STRUCTURE. TO TURN RIGHT FROM A STOP SIGN, OR A STOP LIGHT, IS DANGEROUS. THE VERTICAL SHAFT (RIGHT SIDE EDGE OF THE WIND-SHIELD VIEWED FROM DRIVERS SEAT) COUPLED WITH THE LARGE MIRROR MAKE FOR A SIGNIFICANT BLIND SPOT. I HAVE HAD TWO OCCASIONS OF NEAR MISSES (I MAKING A RIGHT TURN FROM STANDING / PEDESTRIAN ON SIDEWALK TO MY RIGHT ATTEMPTING TO CROSS STREET / PEDESTRIAN CROSSING DRIVERS RIGHT TO LEFT). FINALLY IT HAPPENED; SHE WAS 71 YRS OLD. I HAVE TESTED MY THEORY OVER AND OVER. I AM CHANGING THE CAR. IT BLOCKS TOO MUCH MASS. I CAN BLOCK-OUT THE ENTIRE FRONT TIRE OF A CITY BUS IF IT IS TO MY RIGHT AT A RED LIGHT OR STOP SIGN; THAT IS SIGNIFICANT. AS THE DRIVER SCANS FROM LEFT TO RIGHT BEFORE A RIGHT TURN, AND AS THE PEDESTRIAN MOVES TO CROSS, THE PEDESTRIAN CAN DISAPPEAR OUT OF VIEW- NOW THAT IS DANGEROUS (MEANWHILE THE PEDESTRIAN IS THINKING THAT THE DRIVER SEES HIM/HER AND EXPECTS THE DRIVER TO EVENTUALLY STOP). BUT, AT THE SAME TIME DRIVER NEVER SEES PEDESTRIAN DUE TO THAT FRONT BLIND SPOT. NOW,AS DRIVER LIFTS OFF BRAKES AND ROLLS FORWARD, THE DANGER COMES AS BOTH DRIVER AND PEDESTRIAN ARCH TO PERPENDICULAR TO EACH OTHER. THE BLIND SPOT TRAVELS WITH DRIVER. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026