2018 GMC Terrain complaints

Yesterday morning I noticed a smell of gas around my car. I looked and didn’t see anything. I drove to work. Once I got back to my vehicle after work I could smell gas as I approached my vehicle. I looked under my car and noticed a puddle of gas. I went to the gas station to put enough fuel for me to make it home in my vehicle and as I was putting the gas I noticed a drip under the vehicle. Once I got home and parked my vehicle I looked under the car and there was a rapid and steady drip coming from the fuel tank. The same make, mode and year of my vehicle has been recalled for this.

The turbine shaft in the transmission broke without warning. The part could have failed in an intersection leaving the vehicle in the middle of the road and potentially causing an accident as the vehicle was unable to move under its own power. Luckily it failed going down the interstate and my wife was able to safely coast to the shoulder. Yes, the vehicle was disassembled by the dealer and the broken part discovered. There was no warning that this would happen. The ironic part was that the vehicle was in to the dealer the day before for a emissions recall, a check engine light (emissions related) and a routine maintenance front end alignment and left my wife stranded the next day.

The "Service Brake Assist" issue in other 2018 GMC SUVs is happening in the 2018 GMC Terrain, but it is not part of the recall. Our brakes became EXTREMELY difficult to press right as we were turning onto the on ramp of an expressway. Thankfully we were smart enough to pull over and not get on the highway. Had we done so, I may not have been here to type this complaint. The brakes be come extremely difficult to press and that message shows. Dealership is going to charge me $400 to replace a vacuum pump - they were not interested in the information I have around this issue in other GMC SUVs since it isn't a formal recall on the Terrain. I could have died yesterday due to this braking issue. I've owned this car for 3 months.

MY AUTO STARTED LEAKING SOME KIND OF OIL.NOT SURE WHAT KIND BUT I CAN SEE ACCUMULATION ON DRIVEWAY CONCRETE PAD. HAD MOTOR OIL & FILTER CHANGED IN CASE IT WAS A O-RING OR NOT TIGHT ENOUGH. IT CONTINUES TO LEAK.

MY 2018 GMC TERRAIN SLE HAS 41668 MILES AND HAS BEEN SERVICED AS NEEDED. ANYHOW, SOMETIMES WHEN I AM DRIVING, I CAN FEEL THE POWER TRAIN STALL OUT WHEN DRIVING INTERMITTENTLY. THIS CONCERNS ME AS A SINGLE PARENT WITH A 10 YEAR OLD CHILD THAT GOES EVERYWHERE WITH ME. I JUST WANT MY VEHICLE TO BE SAFE.

BRAKING ASSIST MESSAGE IS APPEARING AND BRAKING IS EXTREMELY HARD AT LOW SPEED. YOU HAVE TO PUSH DOWN HARD ON BRAKE TO GET CAR TO STOP.

TL* THE CONTACT OWNS A 2018 GMC TERRAIN. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE STALLED INTERMITTENTLY WITH THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE CONTACT HAD TAKEN THE VEHICLE TO HILLSDALE BUICK GMC (99 W CARLETON RD, M-99, HILLSDALE, MI 49242) ON MULTIPLE OCCASIONS TO HAVE MULTIPLE REPAIRS PERFORMED ON THE VEHICLE INCLUDING THE REPLACEMENT OF THE ECM, SEVERAL FUEL INJECTORS, AND MULTIPLE COMPUTER UPDATES PERFORMED HOWEVER, THE FAILURE PERSISTED AFTER EACH VISIT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND REFERRED THE CONTACT TO NHTSA FOR ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 90,000.

WHEN RESTARTING AFTER VEHICLE "AUTO STOP" I AM GETTING "SERVICE BRAKE ASSIST" AND OCCASIONALLY "SERVICE ESC" WARNINGS. THESE WARNINGS WERE ASSOCIATED WITH BRAKE FAILURE IN GM SUV'S AND PICKUPS AND WERE SUBJECT TO A RECALL. NO SUCH RECALL EXISTS FOR THE TERRAIN. I HAVEN'T YET EXPERIENCED A BRAKE FAILURE BUT GM SEEMS TO WANT TO WAIT UNTIL I DO TO FIX THE PROBLEM.

MY 2018 GMC TERRAIN BRAKES DID NOT WORK WHEN COMING TO A STOP AT STOP LIGHTS WHICH CAUSED ME TO REAR END THE CAR IN FRONT OF ME. THERE WAS NO WARNING ON MY SUV NOR DID I RECEIVE A RECALL ON THIS MATTER. THIS HAPPENED TWICE TO ME IN THIS SAME VEHICLE WHERE THE BRAKES DID NOT RESPOND AT A LOW SPEED CAUSING AN ACCIDENT. THIS ACCIDENT JUST HAPPENED TO CAUSE DAMAGE TO MY VEHICLE AND THE CAR IN FRONT OF ME.

THE SERVICE STABILITRAK LIGHT CONTINUES TO COME ON. WHEN IT DOES, ALMOST ALL OF THE LIGHTS ON THE DASH LIGHT UP AND THE CAR PUTS ITSELF IN NEUTRAL AND SHUTS OFF. THIS HAS HAPPENED 5 TIMES IN THE PAST TWO WEEKS. TWICE WITH MY [XXX] IN THE CAR. PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). THE CAR WAS PURCHASED 12/23/2020 AND IT FIRST SHUT OFF WITH THE SERVICE STABILITRAK WARNING 12/31/2020. I'VE TAKEN IT TO THE DEALERSHIP FOR REPAIR. THEY REPLACED THE FRONT RIGHT WHEEL SENSOR TODAY AND IMMEDIATELY AFTER LEAVING THEIR LOT, IT SHUT OFF TWICE. I DID A SEARCH ON THE VIN AND FOUND THAT THIS VEHICLE HAD ISSUES AT 11K MILES AND 27K MILES. NOW AGAIN AT 55K MILES. THE CAR JUST SHUTS ITSELF OFF WHILE DRIVING. FIRST TIME IT HAPPENED, I WAS ROUNDING A CORNER IN HIGH TRAFFIC AND IN MID TURN, THE CAR SHUT OFF. I WAS ALMOST HIT BY SEVERAL CARS. THIS VEHICLE IS DANGEROUS. IT HAPPENED ONCE WHILE ON THE HIGHWAY WITH MY 15 MONTH OLD IN THE CAR AND TODAY IT HAPPENED TWICE WITH HER IN THE CAR.

CAR SHUTS OFF COMPLETELY AT A STOP AND NO POWER AT ALL UNTILL IT IS JUMP STARTED.

TL* THE CONTACT OWNS A 2018 GMC TERRAIN. THE CONTACT STATED THAT WHILE PULLING INTO A BUILDING PARKING WHILE DEPRESSING THE BRAKE PEDAL, THE VEHICLE ACCELERATED, THE CONTACT TURNED THE STEERING WHEEL AND MISSED HITTING THE BUILDING. THE CONTACT STATED THAT SHE WAS NOT ABLE TO CONTROL THE VEHICLE WHILE DEPRESSING THE BRAKE PEDAL, AS A RESULT, THE CONTACT CRASHED INTO A POST. IN ADDITION, THE CONTACT STATED THAT SHE SHIFTED INTO PARK, THE VEHICLE CONTINUE TO ROLLED. THE CONTACT ENGAGED THE EMERGENCY BRAKE AND THE VEHICLE CAME TO A STOP. THE CONTACT STATED THAT SHE DID NOT NOTICED ANY WARNING LIGHTS ILLUMINATED BECAUSE THE FAILURE OCCURRED FAST. THE CONTACT DID NOT SUSTAINED INJURIES. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO DON MOORE CHEVROLET BUICK GMC, 3232 VILLA POINT, OWENSBORO, KY 42303 (270) 215-1953, BUT WAS NOT YET DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND PROVIDED A CASE NUMBER. THE FAILURE MILEAGE WAS APPROXIMATELY 15,000. THE VIN WAS NOT AVAILABLE.

DRIVING 50MPH ON AN OVERPASS, SUNROOF EXPLODED.

THE VACUUM PUMP FAILED FOR THE SECOND TIME IN LESS THAN TWELVE MONTHS. BOTH TIMES THERE WAS NO BRAKES AT ALL WHEN THEY FAILED. BOTH REPAIRS WERE PERFORMED BY GMC DEALERS. FAILURES HAPPENED WHILE THE TERRAIN WAS BEING DRIVEN.

THE CAR KEEPS REVVING AND DOESN'T SHIFT INTO GEAR. YOU HAVE TO LIFT YOUR FOOT OFF THE GAS PEDAL AND GIVE IT A FEW SECONDS AND THEM PRESS IT AGAIN. HOWEVER WHEN YOU PRESS THE GAS AGAIN THE CAR JUMPS INTO GEAR CAUSING THE STEERING WHEEL TO JERK EITHER LEFT OR RIGHT. IT EITHER REVS TOO HIGH OR IT FEELS LIKE IT DOWNSHIFTS. THIS LAST TIME, 9/8/20, I JUST REVERSED OUT OF MY DRIVEWAY ONTO MY RESIDENTIAL STREET, GOING ABOUT 18 MPH WHEN THE CAR WOULD NOT SHIFT INTO 2ND GEAR. WHEN IT JERKED INTO GEAR IT JERKED THE STEERING WHEEL AND IT CAUSED ME TO HIT A PARKED CAR JUST 4 DOORS DOWN FROM MY HOUSE, CAUSING $6000 WORTH OF DAMAGE TO MY TERRAIN LIKELY TOTALING THE 2010 COROLLA I HIT. I HAVE HAD A CLEAN DRIVING RECORD FOR 30 YEARS UNTIL NOW. GMC WILL NOT OWN FAULT AND NOW MY INSURANCE WILL GO UP AS WELL FOR SOMETHING THAT REALLY WAS NOT MY FAULT.

MY 2018 GMC TERRAIN HAS MAJOR ISSUES THAT ALMOST CAUSED ME TO HIT A WALL ON THE EXPRESSWAY DUE TO A BRAKE ASSIST ISSUE THAT OTHER OWNERS HAVE A ISSUE WITH AND GMC HAS DONE NOTHING TO HELP THE BUYERS , WHERE CAN WE THE BUYERS GET HELP WITH ISSUES GMC IS WELL AWARE OF??

I PURCHASED A BRAND NEW 2018 GMC TERRAIN (VIN NO. [XXX]) TWO YEARS AGO. THE VEHICLE HAS APPROXIMATELY 50,000 MILES ON IT. ON AUGUST 6, 2020, MY HUSBAND AND I WERE TRAVELING WITH OUR 2-YEAR-OLD SON TO ATTEND AN OUT-OF-STATE FUNERAL. TRAVELING AROUND 75 MPH ON THE HIGHWAY, THE BRAKES FAILED US. THE PEDAL BECAME ENTIRELY STIFF MAKING IT NEARLY IMPOSSIBLE TO SLOW DOWN AND STOP. IT TOOK CONSIDERABLE FORCE TO BRING THE VEHICLE TO A STOP. REMIND YOU, I WAS TRAVELING WITH MY 2-YEAR-OLD SON. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

RADIO PLAYS RANDOM RADIO STATIONS AND WILL NOT ALLOW RADIO TO BE TURNED OFF WHEN VEHICLE IS TURNED OFF ( NO POWER TO THE VEHICLE, DOORS ARE OPENED AND THE FOB IS OVER 500 FT AWAY). RADIO SCREEN FLASHES TO A BLANK SCREEN. DOES NOT READ CONTACT INFORMATION FOR CELLPHONE CONNECTED TO VEHICLE. WILL NOT ALLOW PHONE CALLS TO BE MADE AND WILL CONTINUE TO PLAY MUSIC THROUGH RADIO AND CAR SPEAKERS WHILE PHONE IS ENGAGED IN A TELEPHONE CALL ( ONCE CALL IS ABLE TO BE PLACED). ANDROID AUTO FEATURE STOPPED WORKING. VEHICLE WILL SLIP OUT OF GEAR AND RANDOMLY PUT SELF INTO AN OVERDRIVE. VEHICLE WILL NOT ACCELERATE DESPITE GAS PETAL BEING ALMOST TO THE FLOOR AND THEN WILL JUMP RAPIDLY AND ACCELERATE QUICKLY. VEHICLE SMELLS LIKE RUBBER IS BURNING UNDER THE HOOD AT VARIOUS TIMES.

I WAS SITTING AT A RED LIGHT IN THE LEFT HAND TURN LANE. A TRUCK RAN THEIR RED LIGHT HITTING ANOTHER TRUCK SENDING BOTH OF THEM CRASHING INTO MY VEHICLE. THE FIRST TRUCK STRUCK THE FRONT BUMPER AT THE HEADLIGHT & SKID ALL THE WAY DOWN THE SIDE OF THE VEHICLE THEN THE OTHER TRUCK WAS SLAMMED INTO THE SIDE OF MY VEHICLE. ALL THE DAMAGE WAS ON THE DRIVER SIDE OF THE CAR. MY CAR WAS MOVED OVER INTO THE NEXT LANE BUT NO AIR BAGS WENT OFF. THIS HAPPENED ON A HWY WHERE THE SPEED LIMIT IS 65. THE TRUCK RUNNING THE RED LIGHT WAS GOING AT LEAST THAT FAST AND NEVER HIT THEIR BRAKES. *TR

MY 2018 TERRAIN HAS 51138 MILES. WHILE DRIVING ON THE INTERSTATE MY BRAKE SYSTEM LOCKED AND I WAS UNABLE TO STOP. I HAD TO COAST TO A SAFE SPEED AND PULL MY PARK BRAKE TO COME TO A STOP. BECAUSE MY BUMPER TO BUMPER WARRANTY IS OUT THE DEALERSHIP IS CHARGING ME. THE VACUUM PUMP IS OUT. EVEN THE TECHNICIAN ACKNOWLEDGED THE PART WAS DEFECTIVE AND ACKNOWLEDGED IT HAPPENED REALLY EARLY ON IN MY VEHICLES MILEAGE BUT IS STILL SAYING IT IS MY COST TO REPLACE. I ASKED REPEATEDLY FOR THE PART NUMBER SO I COULD COMPARE THAT PART NUMBER TO THE PART THAT WAS RECALLED ON THE 2018 GMC TRUCKS AND THE DEALERSHIP AND GM REFUSED TO GIVE ME THE PART NUMBER. *TR

RECALL ON THE ENGINE BLOCK HEATER. THE DEALERSHIP IS UNABLE TO GET THE PART TO REPLACE. I TOOK IN OVER 6 MONTHS AGO AND STILL HAVE NOTHING.

WHEN THE SIDE CURTAIN AIRBAG WENT OFF IT BURNED A HOLE THROUGH MY DAUGHTER'S COAT AND SHIRT CAUSING 2ND-3RD DEGREE BURNS.

THE NEW AUTO STOP THAT SHUTS OFF THE MOTOR WHEN YOU'RE AT A RED LIGHT DOESN'T WORK PROPERLY. SOMETIMES IT SHUTS OFF, BUT MOST OF THE TIME IT DOESN'T BEEN TO THE DEALER TWO TIMES AND THE RADIO WILL NOT COME ON AT TIMES EVEN THOUGH GM HAS PERFORMED UPDATES ON THESE PROBLEMS. THE PROBLEMS STILL EXIST

MY CAR JUST COMPLETELY SHUT DOWN OUT OF NOWHERE. IT HAS HAPPENED TWICE WHEN I WAS SLOWING FOR TRAFFIC AND WHEN I WAS IN A PARKING LOT. THE FIRST TIME I COULDN'T GET OUT OF THE CAR BECAUSE THE DOOR WOULDN'T UNLOCK. THEN THE POWER CAME ON BUT THE CAR WOULD NOT TURN OVER. IT HAS PUSH BUTTON GEAR SHIFTS AND WOULD NOT GO INTO NEUTRAL. I HAD TO CALL THE POLICE TO ASSIST UNTIL THE CAR WAS TOWED BECAUSE I WAS ON A VERY BUSY AND DANGEROUS STREET. I HONESTLY WAS SCARED SOMEONE WAS GOING TO SLAM INTO ME. THE SECOND TIME I WAS LOOKING FOR A PARKING SPOT AND IT STOPPED. LUCKILY I ALWAYS KEEP THE DOORS UNLOCKED SINCE FIRST INCIDENT HAD TO BE TOWED BOTH TIMES. AS OF TODAY IT IS STILL AT THE DEALER TRYING TO BE FIXED FOR A SECOND TIME. THEY 'THOUGHT' THEY FIXED IT THE FIRST TIME BUT IT HAPPENED AGAIN. THE DEALER HAS HAD MY CAR SINCE OCTOBER 17. THEY CLAIM THEY KNOW WHAT IT IS. THEY REPLACE SOME ENGINE MODULE AND ARE NOW WAITING ON A PUSH BUTTON FOR THE GEAR SHIFT.

SCREEN WENT BLACK AND WARNING CHIMES AND SEAT VIBRATION DID NOT GO OFF WHEN BACKING UP. HAD TO FILE A CLAIM WITH INSURANCE TO FIX MY DENTED BUMPER. I ALSO EXPERIENCE ISSUES WITH THE AUDIO BUTTONS ON THE STEERING WHEEL. I AM NOT ABLE TO CHANGE THE SONG IN I AM ON APPLE PLAY AND THERE IS ALWAYS A DELAY WHEN CHANGING RADIO STATIONS.

THE SCREEN ON THE DASH WHICH INCLUDES THE RADIO AND BACK UP CAMERA GOES WHITE AT RANDOM TIMES AND DOES NOT WORK. I HAVE HAD THE RADIO/SCREEN REPLACED AND IT STILL DOES IT. I HAVE HAD MANY UPDATES WITH THE SCREEN.

I ENTERED THE VEHICLE AND SAT IN THE FRONT PASSENGER SEAT. WHEN I SAT DOWN AND STARTED TO PUT ON MY SEAT BELT, I HEARD A LOUD POP AND THE SEAT BECAME UNSTABLE AND ROCKED BACK AND FORTH. THIS OCCURRED BEFORE THE VEHICLE WAS IN MOTION. I LOOKED UNDER THE SEAT AND NOTICED A BOLT HAD SNAPPED ON THE BOTTOM SEAT FRAME.

TL* THE CONTACT OWNS A 2018 GMC TERRAIN. ON SEVERAL OCCASIONS, WHILE ATTEMPTING TO ACCELERATE FROM A STOP SIGN, THE VEHICLE STALLED. THE VEHICLE WOULD RESTART AFTER SEVERAL MINUTES AND THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO TASCA BUICK (510 E NASA BLVD, MELBOURNE, FL 32901, (321) 247-7124) WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION NEEDED TO BE REPLACED; HOWEVER, THE PART WAS ON BACKORDER. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 10,000.

WHEN VEERING OR STEERING INTO ANOTHER LANE, LEFT OR RIGHT, THE SAFETY ALERTS, I.E. THE TUG OF THE STEERING WHEEL AND VIBRATION OF SEAT, ARE NOT WORKING PROPERLY. FOR THE FIRST YEAR OF OWNERSHIP OF THIS VEHICLE, THIS FEATURE WORKED FINE. HOWEVER, IN THE PAST FEW MONTHS, IT HAS QUIT WORKING OR WORKS SPORATICALLY BUT WHEN WORKING SPORATICALLY, DOES NOT WORK AS IT SHOULD. THE DEALERSHIP WHERE I PURCHASED IT IS UNABLE TO FIX IT STATING THAT IN "UPDATING" THE PROGRAMMING IN MY CAR, THIS FEATURE WAS WEAKENED (DILIBERATELY BECAUSE GMC INTENDED TO WEAKEN THE FEATURE STATING THE REASON WAS BECAUSE SOME DRIVERS WERE USING THIS FEATURE AS AN AUTO-DRIVE). I BOUGHT THIS VEHICLE, ONE OF THE REASONS BEING THAT IT OFFERED THIS FEATURE AND NOW THE FEATURE DOESN'T WORK THE WAY IT DID WHEN I BOUGHT IT.

WHILE DRIVING, THE INFOTAINMENT SYSTEM GOES BLACK, NO AUDIO - THEN REBOOTS AFTER A MINUTE OR TWO. I HAVE DETECTED A BURNING SMELL AS WELL, BUT CANNOT DETERMINE IF IT IS COMING FROM MY VEHICLE OR OUTSIDE. THIS HAS HAPPENED 5 TIMES AND THE DEALER IS TELLING ME THEY CAN NOT REPLICATE OR FIND ANYTHING WRONG. VERY FRUSTRATING!!! THIS HAS HAPPENED SHORTLY AFTER LEAVING HOME, WHILE DRIVING ON CITY ROADS, AFTER DRIVING A WHILE, ON THE HIGHWAY, STOPPED AT A RED LIGHT. THERE IS SO SPECIFIC TIME OR FREQUENCY THAT THIS OCCURS. THIS FIRST HAPPENED WITHIN 300 MILES OF WHEN I FIRST LEASED, UP TO A WEEK AGO SUNDAY, JULY 7. TOTAL OF 5 TIMES IN THE PAST 10 MONTHS!

I WAS NOTIFIED OF MY DEALER OF RECALL N192217490. WHICH IS A SERIOUS ISSUE AND IT'S NOT ON YOUR LIST WONDERING WHY YOUR LIST IS LACKING YOU'RE SUPPOSED TO BE THE AUTHORITY ON RECALLS BUT YET ON STAR NOTIFIED MY DEALER OF THIS RECALL AND IT'S A TRANSMISSION ISSUE OR CLUTCH ISSUE WHICH IS SERIOUS WHY IS IT NOT ON YOUR LIST HOW CAN I TRUST YOUR COMPANY TO HAVE A THOROUGH LISTING OF ALL RECALLS WHEN THIS WIND IS NOT EVEN ON CAN'T WAIT TO HEAR YOUR EXPLANATION

TL* THE CONTACT OWNS A 2018 GMC TERRAIN. WHILE DRIVING 80 MPH, THE REAR PASSENGER TIRE SHOOK AND VIBRATED LOUDLY. THE CONTACT TOOK THE VEHICLE TO ED BOZARTH CHEVROLET (2001 S HAVANA ST, AURORA, CO 80014, (720) 746-2716) WHERE IT WAS DIAGNOSED THAT THE TIRES WERE FAULTY. BOTH REAR TIRES WERE REPLACED, BUT THE FAILURE CONTINUED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS UNKNOWN.

WAS LEAVING A PARKING SPOT. VEHICLE REVERSED FINE, PUT IT IN DRIVE AND IT BEGAN TO JERK AND DID NOT ACCELERATE PROPERLY. MADE IT TO THE NEXT AISLE TO PARK IT AND GET OUT OF WAY. ONCE PARKED, SHUT OFF VEHICLE. STARTED IT. REVERSED IT AND IT WOULD ONLY REV UP, DID NOT REVERSE. PUT IT IN DRIVE AND IT JERKED FORWARD, HARD AND KEPT JERKING AS I PULLED FORWARD. PARKED IT AGAIN AND TURNED IT OFF. CALLED DEALERSHIP, WHO CALLED A TOW SERVICE TO TOW IT TO THEM. ATTEMPTED TO SHOW TOW GUY THE ISSUE AT HIS REQUEST, UPON HIS ARRIVAL, PUT IT IN REVERSE AND IT REVVED UP BRIEFLY THEN JERKED INTO REVERSE. HAD TO MOVE VEHICLE TO CLEAR AREA TO GET IT ON THE TOW TRUCK SO I PUT IT IN DRIVE AND IT BEGAN TO JERK CONSTANTLY AND BARELY ACCELERATING AS I DROVE AND FELT AND SOUNDED LIKE IT WAS GOING TO SHUT OFF (BUT DIDN'T) BEFORE I MADE IT TO WHERE I COULD PARK AGAIN. LUCKILY I WAS IN A PARKING LOT AND NOT ON THE ROAD. I'VE HAD THIS VEHICLE EXACTLY A MONTH. VERY SCARY.

BOUGHT BRAND NEW. AT 14,000 MILES ALL 4 ROTORS ARE PITTED WITH GROOVES. DEALER TOOK THEM APART AND FOUND NOTHING THAT COULD CAUSE IT. SAID THEY WERE "WEATHERED". TOOK IT TO 2 OTHER PLACES AND SAID IT WAS A MANUFACTURE DEFECT. DEALER WONT REPLACE BECAUSE BUMPER TO BUMPER WONT COVER IT. ITS A DEFECT DIDNT NOTICE UNTIL ANOTHER DEALER DID THE OIL CHANGE. THE DEALER IN FEBRUARY SAID THEY WERENT LIKE THAT IN FEBRUARY.

THE VEHICLE WAS IN MOTION MAKING A RIGHT HAND TURN AND IN THE TURN THE OPERATOR LOST CONTROL OF THE VEHICLE CAUSING HER TO STRIKE A CURB THEN HEAD FOR ONCOMING TRAFFIC. WHEN IT WAS ALL SAID AND DONE IT LOOKED LIKE THE BALL JOINT HAD FAILED CAUSING THE LOSS OF CONTROL. A BYSTANDER SAID HE HEARD A LOUD POP AND LOOKED UP AND WITNESSED THE VEHICLE SLIDE INTO THE CURB AND THEN SEE THE FRONT LEFT TIRE LOCK UP AND THE VEHICLE COME TO A STOP.

TRANSMISSION FAILS TO DOWN SHIFT AFTER ACCELERATING IN TRAFFIC. RPM LEGAL 2200 RPM AT 40 MPH FOR OVER A MILE BEFORE DROPPING TO CORRECT 1200 RPM FOR THAT SPEED.

WHILE THE VEHICLE IS IN DRIVE IT LOSES PROPULSION WITHOUT NOTICE. THE VEHICLE STAYS IN DRIVE. THE VEHICLES RPM INCREASE AS YOUR FOOT IS ON THE ACCELERATOR BUT THE VEHICLE DOESN'T CONTINUE TO MOVE. THE ONLY WAY TO REGAIN PROPULSION IS TO COMPLETELY SHUT THE VEHICLE OFF AND THEN START UP AGAIN.

TRANSMISSION LOCKS UP AND WILL NOT SHIFT INTO HIGHER GEAR. THIS HAS HAPPENED SEVERAL TIMES WHILE DRIVING.

REAR DOOR ELECTRIC LOCKING SYSTEM DOES NOT WORK. ALSO COULD NOT ENTRR CAR AFTER CAR WASH AS ALL OTHER DOORS WERE INOPERABLE.

WIRING HARNESS NOT WEATHER SEALED N SHORTED OUT AFTER DEALER WASHED CAR ON DELIVERY

THE CAR AUTOMATIC BRAKING SYSTEM LOCKED UP AS DRIVING ON HIGHWAY. COULD NOT GET CAR TO MOVE.

TL* THE CONTACT OWNS A 2018 GMC TERRAIN. WHEN DRIVING DOWNHILL, THE VEHICLE STALLED AND WOULD NOT ACCELERATE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT PULLED THE VEHICLE OVER AND HAD IT TOWED TO ANCHOR BUICK GMC (1 AUTOMOTIVE BLVD, ELKTON, MD 21921, (443) 406-4623) WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION CLUTCH NEEDED TO BE REPAIRED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 4,200.

WHILE DRIVING ON A SNOW- COVERED ROAD WITH ANY AMOUNT OF SNOW, THE SNOW GETS PACKED INSIDE OF THE WHEELS AND THROWS THE WHEEL BALANCE OFF CAUSING THE STEERING WHEEL TO SHIMMY BADLY AT HIGHWAY SPEEDS. I HAVE TO REMOVE THE SNOW PACK EVVERY DAY, AND I BELIEVE THAT THIS IS AN AERODYNAMIC DESIGN FLAW WITH THE WHEELS WHERE THE SNOW DOESN'T GET BLOWN OUT OF THE WHEEL WHILE THE CAR IS IN MOTION.

I GOT A DIAGNOSTIC ALERT: SERVICE THE ENGING AND TRANSMISSION SYSTEM IN YOUR 2018 TERRAIN WITHIN 7 DAYS. THE CODE WAS P050F. I HAVE A LITTLE OVER 10,000 MILES ON HERE.

I HAVE AROUND 6 TO 7 MONTH WITH THE VEHICLE AND SINCE DAY ONE IT MADE A WEARD NOISE IN THE ENGINE TRANSMISSION AREA AND THE VEHICLE DOESNT RESPOND AND PERFORM WELL I TOOK IT TO THE DEALERSHIP AND AT FIRST THEY STATED IT WAS SOMETHING WITH THE TRANSMISSION AND THEN THEY STARTED GIVING ME MANYDIFERENT EXCUSES AND THAT IT WAS NORMAL BUT STILL THE SUV WOULDNT RESPOND I CALLED GM AND THEY OPENED A TICKET BUT AFTER THAT THEY SAID THEY COULD NOT DO ANYTHING ABOUT IT IN OTHER WORDS THEY TOLD ME I HAD TO DEAL WITH THE ISSUE. YESTURDAY FEB 26,2019 THE SUV STARTED HAVING WORST PROBLEMS AS TO WHERE IT WOULD NOT RUN MOR THEN 33 MILES A HOUR IT STARTED SHAKING RPMS GOING WILD THE VEHICLE ONLY HAS 5500 MILES ON IT. I DONT KNOW WHAT TO DO OUT OF THIS TIME I HAVE WITH IT THE VEHICLE HAS BEEN MORE TIMED AT THE DEALERSHIP THAN WITH ME

WHEN I DRIVE MY CAR AFTER COMING OUT OF REVERSE THE CAR REVS UP BETWEEN 35 AND 45 RPMS. THIS IS WHEN IT IS GOING ABOUT 25 MPH. WHEN I REMOVE MY FOOT FROM THE GAS THE CAR JERKS VIOLENTLY FORWARD AND RPMS DROP TO 25RMS. WHEN I GIVE IT SOME GAS THE RPMS GO UP AGAIN TO THE 35-45 RPM. THE ONLY WAY TO GET THIS TO STOP IS TO PULL OVER, PUT THE CAR IN PARK, TURN OFF THE CAR AND OPEN THE DOOR. I LET IT SIT FOR ABOUT 10 MIN AND THEN TURN IT BACK ON AND DRIVE. I HAVE BROUGHT IT TO THE DEALER SEVERAL TIMES AND THEY KEEP TELLING ME THERE IS NOTHING WRONG THAT WHEN THEY PLUG IT IN EVERYTHING COMES BACK FINE. I HAVE HAD OTHER PEOPLE IN THE CAR AND IT HAS HAPPENED WITH WITNESSES SO I AM NOT IMAGINING IT. THIS IS A BRAND NEW VEHICLE AND STARTED HAPPENING A FEW DAYS AFTER I GOT IT. THE DATE I AM GIVING OF WHEN IT HAPPENED IS THE LATEST ONE - IT STARTED 8/18.

CONTINUE TO EXPERIENCE RADIO RESETTING (COMPLETELY SHUTTING DOWN AND RESETTING GIVING YOU THE GMC LOGO) AS YOU DRIVE DOWN THE ROAD, WITH PHONE CONNECTED WITH USB AND WITHOUT. CONTINUE TO EXPERIENCE USB NOT PRODUCING ENOUGH POWER TO MY PHONE TO RUN WAZE FROM THE USB PORT UNDER THE RADIO. PHONE CALLS WILL FADE IN AND OUT BETWEEN THE RADIO AND THE PHONE CALL...BEING CONNECTED VIA BLUETOOTH TO THE TRUCK. CONTINUE NOT BEING ABLE TO ANSWER THE CALLS VIA BLUETOOTH. TRUCK HAS BEEN INTO 2 DIFFERENT DEALERSHIPS....BOTH HAVE "RESET" THE SYSTEM...BUT IT CONTINUES TO DO THE SAME THINGS...OR SOMETHING NEW EVERY WEEK. PARTS HAVE BEEN ORDERED TO REPLACE USB PORT...STILL WAITING. BOUGHT THE CAR NEW....BEEN ONGOING...BEEN IN THE DEALERSHIPS 10-15 TIMES NOW. NO SOLUTION

MY VEHICLE HAS BEEN MAKING A NOISE EVERY SINCE THE DAY OF PURCHASE. IT STARTED AS A VAGUE SOUND AND HAS SINCE GOTTEN WORSE. THE NOISE IS COMING FROM THE REAR EXHAUST. AT CERTAIN SPEEDS OF TRAVEL THE NOISE GETS WORSE. I HAVE DONE A VISIBILITY CHECK OF THE REAR EXHAUST PIPE AND NOTICED THE ASSEMBLED EXHAUST WHERE IT WAS WELDED IS LOOSE AND SHAKING. I'M NOT FOR SURE IF THIS IS WHERE THE NOISE IS COMING FROM BUT IT COULD USE SOME INVESTIGATION. I PURCHASED MY VEHICLE WITH NO MILEAGE ABOUT 5 MONTHS AGO FROM HENNESSY GMC IN MORROW GEORGIA.

THE NAVIGATION/MEDIA CENTER WILL EITHER GO COMPLETELY BLACK OR COMPLETELY WHITE SCREEN EVEN WHEN BACKING UP YOU LOSE THE CAMERA AND CAN'T SHUT OFF THE RADIO. IF THE SCREEN GOES WHITE DURING EVENING DRIVING THE REFLECTION OF THE WINDSHIELD IS SO SEVERE I CAN'T DRIVE AND THE SYSTEM WILL NOT SHUT OFF WHEN THE POWER BUTTON IS DEPRESSED. I HAVE TAKEN IT TO DEALERSHIP, THEY REPLACED THE RADIO ONCE. IT IS DOING IT AGAIN LESS THAN A MONTH LATER. GMC SAID THEY KNOW ABOUT THIS ISSUE WITH THE VEHICLE BUT DO NOT KNOW WHY OR HAVE A FIX. IN THE MEAN TIME I AM TO DRIVE MY VEHICLE SINCE THEY DO NOT SEE THIS AS A SAFETY CONCERN. I HAVE ATTACHED A PHOTO FROM YESTERDAY I WAS IN THE PROCESS OF BACKING UP WHEN THE WHOLE SCREEN WENT BLACK. I WAS BACKING OUT OF MY DRIVEWAY ONTO A CITY STREET. WHEN WE GOT TO OUR DESTINATION AND SHUT THE CAR OFF THE RADIO STAYED ON EVEN ONCE WE EXITED THE VEHICLE AND SHUT AND LOCKED THE DOORS. I AM WORRIED ABOUT THE POTENTIAL OF A FIRE HAZARD AS WELL.

MY VEHICLE IS STALLING AND STUTTERING WHILE TRYING TO ACCELERATE. IT ALSO DOES THE SAME WHEN DECELERATING. THE TRUCK WILL JERK AND STUTTER. ALSO MAKING NOISE LIKE A VACUUM CLEANER WHILE THIS IS GOING ON. I JUST PURCHASED THIS VEHICLE IN SEPTEMBER 2018 AND IT HAS BEEN GOING ON SINCE NOVEMBER 2018