There are 4 owner-reported steering complaints for the 2015 GMC Terrainin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
THIS HAS HAPPENED SEVERAL TIME IN THE CITY CROSSING AN INTERSECTION USUALLY AT SLOW SPEED BRAKING AND TURNING AND ALL THE SUDDEN I LOSE EVERYTHING. NO STEERING ELECTRICAL AND BRAKING. THE PARK ASSIST WILL SOMETIMES START GOING OFF LIKE CRAZY JUST BEFORE IT HAPPENS, BUT NOT ALL THE TIME. PUT IN PARK AND OPEN THE DOOR IT COMES BACK ON. THEN SAYS ROLL DOWN DRIVERS SIDE WINDOW AND THEN BACK UP. AT ON TIME I DID HAVE IT HAPPEN ON THE HIGHWAY. I WAS GETTING READY TO PASS AND GIVING IT GAS AND EVERYTHING SHUT DOWN FOR A SPLIT SECOND AND THEN TOOK OFF AGAIN. THIS PROBLEM IS GOING TO GET SOMEONE KILLED.
INTERMITTENT POWER STEERING FAILURE TURNING AT LOW SPEEDS. ALMOST HIT A CAR WHILE TURNING IN A ROAD DUE TO LACK OF POWER STEERING WORKING PROPERLY.
IN 2 DAYS, THE VEHICLE HAS STALLED ON ME. I WAS IN THE PARKING LOT AND ANOTHER CAR ALMOST HIT ME SINCE THE CAR SLOWED DOWN AND THE STEERING WHEEL GOT HARD THEN SHUT OFF. TODAY, I ALMOST GOT HIT AGAIN AFTER STOPPING AT A STOP SIGN GOING INTO A TURN I ALMOST HIT SOMEONE AND A CAR ALMOST HIT ME.
WHILE MAKING A RIGHT TURN AT THE BOTTOM OF A FREEWAY OFFRAMP THE KEYS ON THE KEYRING ATTACHED TO THE KEY IN THE IGNITION GOT STUCK IN THE STEERING WHEEL. THIS BRIEFLY PREVENTED ME FROM EXITING THE TURN, AND THEN WHEN THE KEYS BROKE FREE THE CAR HAD TURNED ITSELF OFF!! I HAD NO POWER STEERING, NO POWER BREAKS AND NO HEADLIGHTS. I WAS ON A SLIGHT DOWNGRADE AND WAS ABLE TO COAST TO THE NEXT BLOCK WHERE I TURNED RIGHT OUT OF TRAFFIC BEFORE COMING TO A FULL STOP. I WAS THEN ABLE TO RESTART THE CAR AFTER PUTTING INTO NEUTRAL (OR PARK, DON'T REMEMBER). THE KEYCHAIN THAT GOT STUCK WAS FROM ENTERPRISE RENTAL AND HAD 2 KEY-FOBS ON IT PLUS A PLASTIC ID TAG ON A SMALL WIRE RING. THIS, COMBINED WITH THE POOR PLACEMENT OF THE IGNITION SWITCH, HAS RESULTED IN MY HITTING THE KEYS WITH MY HANDS WHILE STEERING SEVERAL TIMES SINCE RENTING THE CAR 5 DAYS AGO. THE IGNITION SWITCH IS LOCATED VERY CLOSE TO THE WHEEL AND THE IGNITION KEY WHICH STICKS OUT OF THE LARGE KEY-FOB IS VERY CLOSE TO THE STEERING WHEEL EVEN WITHOUT OTHER KEYS ON THE RING. TESTING THIS IN MY DRIVEWAY IT IS VERY EASY TO TURN THE CAR OFF WHILE IN DRIVE. VERY SCARY! *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 26, 2026