Home · 2012 GMC Terrain · Complaints

What 370 owners told NHTSA about the 2012 GMC Terrain

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (370)Crash / fire / injury (26)Engine (170)Visibility & wipers (81)Transmission & drivetrain (37)Electrical system (33)Fuel system (30)Airbags (27)Body & structure (14)Electronic Stability Control (esc) (13)Speed control (11)Lights (10)

4 of 370 complaints match · Body & structure · crash/fire/injury only · clear filters

Feb 18, 2020AirbagsBody & structureCrash

ON FEB 10, 2020 I WAS INVOLVED IN A SIDE IMPACT CRASH WHEN A LARGE TRUCK FAILED TO STOP AT A RED LIGHT. I TOOK THE VEHICLE IN FOR REPAIRS AS THE FRONT QUARTER PANEL AND WHEEL WERE DAMAGED. THE COLLISION SHOP CALLED TODAY AND STATED THAT ALL FOUR OF MY IMPACT SENSORS ARE "DEAD". HE SAID I WAS VERY LUCKY BECAUSE THERE IS NO WAY I WOULD'VE KNOWN THAT MY AIRBAGS WOULDN'T HAVE DEPLOYED AND I VERY LIKELY WOULD'VE BEEN SERIOUSLY INJURED OR KILLED. THERE WAS NO WARNING LIGHT ON THE DASH, AND NO CODE. THEY FOUND IT BY ACCIDENT ON A MORE INTENSIVE DIAGNOSTIC. THIS IS SCARY BECAUSE HOW MANY OTHER 2012 TERRAIN OWNERS WON'T KNOW UNTIL ONE OF THEIR LOVED ONES ARE INJURED OR KILLED!?!? YOU NEED TO DO SOMETHING ABOUT THIS. I GOT LUCKY BUT YOU HAVE NOW 23 COMPLAINTS ABOUT THESE BAGS NOT DEPLOYING. PLEASE DO SOMETHING!!!

NHTSA ODI 11309913

Jul 2, 2014SuspensionAirbagsBody & structureCrash3 injuries

WE HAD BEGUN TO CROSS AN INTERSECTION AND, WHILE OUR SPEED WAS FROM A DEAD STOP, THE OTHER DRIVER BLEW THROUGH A RED LIGHT AND HIT US AT WHAT WAS PROBABLY THE SPEED LIMIT OF 40MPH. HER CAR STRUCK US IN THE RIGHT FRONT PASSENGER SIDE AND AGAIN ON THE REAR PASSENGER SIDE. WE, MYSELF WHO WAS DRIVING, AND MY WIFE, WHO WAS THE PASSENGER ON THE SIDE HIT, WERE BOTH THROWN HARD TO THE RIGHT AT IMPACT, CAUSING INJURIES TO US BOTH, MOST NOTABLY, MY WIFE. SHE HIT HER HEAD VERY HARD ON EITHER THE PASSENGER DOOR FRAME OR THE PASSENGER WINDOW. NO AIRBAGS DEPLOYED. NO SIDE AIRBAGS, NO FRONT AIRBAGS. NO AIR BAGS DEPLOYED! *TR

NHTSA ODI 10607744

Mar 24, 2013Body & structure1 injury

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

NHTSA ODI 10505055

Jul 18, 2012SuspensionAirbagsBody & structureEngineCrash1 injury

?ON APRIL 16TH OUR SON WAS DRIVING ON FAIRVIEW RD. AND TRAVELING THROUGH A GREEN LIGHT WHEN A CAR THAT RAN A RED LIGHT HIT HIM. ?HIS CAR ? A GMC 2012 TERRAIN WAS HIT MULTIPLE TIMES ? DRIVER'S FRONT END, FRONT END AND SPUN AROUND FROM THE FORCE AND HIT ON THE PASSENGER SIDE. NO AIRBAGS DEPLOYED ?[XXX] WAS IMMEDIATELY CONTACTED BY ON STAR, THEY CALLED POLICE, HIS CAR WAS TOTALED ?ON 4/21 I EMAILED GMC AND ASKED WHAT DEPARTMENT I WOULD CONTACT TO FILE A COMPLAINT ABOUT THE FRONT AND SIDE AIRBAGS NOT DEPLOYING CALL FROM GMC 866-790-5700 EXT. 22745 SAID ON VOICE MAIL ? THE AIRBAG DID NOT DEPLOY AS IT SHOULD HAVE? HE MADE A CASE NUMBER [XXX] GMC HAS SINCE DECLARED THIS WAS A LOW THRESHOLD EVENT - NO NEED FOR AIRBAG DEPLOYMENT - YET THE CAR WAS TOTALED AND OUR SON HAS WHIPLASH AND CONTUSIONS INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI 10466384

Working with the data? Download all 370 complaints as CSV · fetched from NHTSA July 10, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2012 GMC Terrain verdict →