2018 GMC TERRAIN Complaints

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.

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

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

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

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.

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

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.