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U.S. public vehicle records

2012 Gmc TERRAIN problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

364 owner complaints analyzed

4 distinct recall campaigns

81,534 mi median reported failure mileage

Scope: 2012 model year. Data snapshot: . 259 complaints include usable failure mileage.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 169 of 364 complaints (46.4%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Engine operation4913.5%
Transmission and shifting318.5%
Electrical and battery issues205.5%
Braking behavior154.1%
Steering behavior123.3%
Fuel system concerns61.6%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Engine
169
Visibility/Wiper
74
Power Train
37
Unknown Or Other
37
Electrical System
30
Fuel/Propulsion System
28
Air Bags
25
Electronic Stability Control (Esc)
13
Component breakdown data
CategoryCount
Engine169
Visibility/Wiper74
Power Train37
Unknown Or Other37
Electrical System30
Fuel/Propulsion System28
Air Bags25
Electronic Stability Control (Esc)13

Engine: 169; Visibility/Wiper: 74; Power Train: 37; Unknown Or Other: 37; Electrical System: 30; Fuel/Propulsion System: 28; Air Bags: 25; Electronic Stability Control (Esc): 13

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
26
25,000 to 49,999
26
50,000 to 74,999
58
75,000 to 99,999
69
100,000 to 149,999
70
150,000 and above
10
Reported problems by failure mileage data
CategoryCount
Under 25,00026
25,000 to 49,99926
50,000 to 74,99958
75,000 to 99,99969
100,000 to 149,99970
150,000 and above10

Under 25,000: 26; 25,000 to 49,999: 26; 50,000 to 74,999: 58; 75,000 to 99,999: 69; 100,000 to 149,999: 70; 150,000 and above: 10

100,000 to 149,999 miles has the most reports with usable mileage (70). 105 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2011
1
2012
9
2013
8
2014
6
2015
14
2016
22
2017
47
2018
56
2019
67
2020
33
2021
33
2022
26
2023
16
2024
15
2025
8
2026
3
Complaints over time data
CategoryCount
20111
20129
20138
20146
201514
201622
201747
201856
201967
202033
202133
202226
202316
202415
20258
20263

2011: 1; 2012: 9; 2013: 8; 2014: 6; 2015: 14; 2016: 22; 2017: 47; 2018: 56; 2019: 67; 2020: 33; 2021: 33; 2022: 26; 2023: 16; 2024: 15; 2025: 8; 2026: 3

Pattern summary

Engine leads the component reports. Engine operation appears in 49 complaint narratives. Transmission and shifting appears in 31 complaint narratives. Electrical and battery issues appears in 20 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 10438162 · 2011-12-02 (December 2, 2011)

TL * THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT WAS DRIVING 5 MPH WHEN THE VEHICLE STALLED AND THE CHECK ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO THE DEALER AND THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 3,600.

Owner-reported narrative. 3,600 miles reported. Look up ODI 10438162 at NHTSA ↗

Owner report 10484500 · 2012-11-13 (November 13, 2012)

TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED THAT HE WAS DRIVING APPROXIMATELY 60-70 MPH WHEN HE HEARD A LOUD NOISE AS THE VEHICLE STALLED. THE CONTACT WAS ABLE TO PULL OFF THE ROAD. AFTER INSPECTING THE VEHICLE, HE FOUND THAT THE FUEL LINE WAS FRACTURED AND ALL OF THE GASOLINE SPILLED OUT FROM THE VEHICLE AND ONTO THE HIGHWAY. THE POLICE WERE CONTACTED AND A REPORT WAS FILED. THE VEHICLE WAS TOWED TO THE DEALER FOR DIAGNOSIS WHERE THE CONTACT WAS ADVISED THAT THE FUEL LINE NEEDED TO BE REPLACED. THE FUEL LINE WAS REPLACED. THE …

Owner-reported narrative. 12,000 miles reported. Look up ODI 10484500 at NHTSA ↗

Owner report 10532218 · 2013-07-28 (July 28, 2013)

VEHICLE'S TRANSMISSION SLIPS AND DOES NOT RESPOND TO AN ACCELERATION AFTER A RAPID DECELERATION OF AT LEAST 40 MPH. THE VEHICLE WILL JERK IN RESPONSE TO YOUR ATTEMPT TO ACCELERATE AND THEN WILL RESPOND. THIS CAN LEAD TO A DANGEROUS SITUATION IF YOU ARE ATTEMPTING TO AVOID A COLLISION BY ACCELERATING TO GET OUT OF THE WAY. *TR

Owner-reported narrative. 18,900 miles reported. Look up ODI 10532218 at NHTSA ↗

Owner report 10549025 · 2013-10-23 (October 23, 2013)

THE VEHICLE HAS BEEN IN THE SHOP FOR 10 TO 12 TIMES DUE TO FAILURE WITH THE ENGINE MISFIRING AS WELL AS TRACTION CONTROL LIGHTS AND STABILITY TRAC AS WELL AS TRANSMISSION NOT SHIFTING RIGHT AND LOSS OF POWER WHILE DRIVING ON MAJOR HIGHWAYS AND BROUGHT INTO THE DEALERSHIP WHERE THEY TELL ME THEY CAN FIND OR MAKE THE PROBLEM REAPPEAR. BUT HAVE SHOWN THE DEALERSHIP SERVICE DEPARTMENT VIDEO AND HAVE HAD 3 GENERAL MOTOR TECHS THAT THEY HIRED FROM HP AND BEEN TOLD THE VEHICLE IS SAFE AND THAT THERE WILL BE NO MORE PROBLEMS BUT HAVE BEEN IN THE VEHICL…

Owner-reported narrative. 17,956 miles reported. Look up ODI 10549025 at NHTSA ↗

Owner report 10816714 · 2015-12-29 (December 29, 2015)

WIPERS IN "ON" POSITION, WIPER MOTOR AUDIBLY RUNNING, NEITHER WIPER BLADE WOULD MOVE ACROSS WINDSHIELD, BOTH REMAIN STATIONARY. CAN MANUALLY MOVE BOTH BLADES FREELY, NO BINDING, IN UNISON VALIDATING LINKAGE BETWEEN THE TWO BLADE ARMS WERE STILL CONNECTED. SUSPECTED MOTOR SHAFT/SPLINE CONNECTING TO THE "BLADE TRANSMISSION" WAS DISCONNECTED, STRIPPED, OR FELL OFF. TO ENSURE NOT AN ELECTRICAL ISSUE, REMOVED 25 AMP FUSE (NO. 29) FROM ENGINE COMPARTMENT FUSE BUSS AND INSPECTED FUSE. FUSE INTACT AND IN LIKE NEW CONDITION. REINSTALLED THE FUSE RE…

Owner-reported narrative. 30 miles reported. Look up ODI 10816714 at NHTSA ↗

Owner report 10822455 · 2016-01-27 (January 27, 2016)

I PURCHASED MY 2012 GMC TERRAIN FROM CLAY COOLEY IN IRVING, TX ON 01/05/2015 WITH AN EXTENDED SERVICE CONTRACT. I HAVE HAD ISSUES WITH THIS VEHICLE EVER SINCE. I TOOK THE VEHICLE IN FOR SERVICE AND WAS TOLD THE SERVICE CONTRACT WOULD NOT COVER MY ISSUE AND THAT THE ISSUE WAS CAUSED BY LACK OF MAINTENANCE, WHICH IS NOT THE CASE AS I MAINTAIN THE OIL IN THIS VEHICLE AND EVEN HAD TO PURCHASE A NEW BATTERY FOR THE VEHICLE RECENTLY. I AM ATTACHING A PICTURE OF THE CONDITION OF THE BATTERY SHORTLY AFTER THE VEHICLE WAS SOLD TO ME TO WHERE I CONTACTED…

Owner-reported narrative. 68,000 miles reported. Look up ODI 10822455 at NHTSA ↗

Owner report 10505055 · 2013-03-24 (March 24, 2013)

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…

Owner-reported narrative. 10 miles reported. Look up ODI 10505055 at NHTSA ↗

Owner report 10845653 · 2016-03-08 (March 8, 2016)

SUMMARY: I HAD TO DECIDE TO BRAKE OR SHOOT THROUGH A YELLOW LIGHT, GOING ABOUT 35 MPH, I BRAKED! ALL OF A SUDDEN I HEARD A CLUNK AND THEN ALARM DING FROM THE DASH AS WELL AS MESSAGE "SERVICE STABILTRAK" THEN "REDUCED ENGINE POWER". I WAS UNABLE TO GO ANY FASTER THAN 25MPH. I DROVE IN THIS MODE FOR ABOUT 2 MILES TAKING THE BACK STREETS TO MY DESTINATION. AT DESTINATION SHUT VEHICLE OFF TO SEE IF THIS WOULD RESET SOMETHING, IT DID! IT WAS SUPER SCARY. SO NOW TERRIFIED TO BRAKE HARD.

Owner-reported narrative. 45,000 miles reported. Look up ODI 10845653 at NHTSA ↗

Owner report 10466485 · 2012-07-18 (July 18, 2012)

PURCHASED 2012 GMC TERRAIN IN JUNE 2012. SHORTLY AFTER PURCHASE I NOTICED THE STEERING IS VERY STIFF AND MAKES GRINDING SOUND WHEN TURNING STEERING WHEEL. HAD TO DEALER SINCE AND THEY SAID IT WAS DUE TO THE TIRES PRESSURE. THEY SAID THEY PUT IN CORRECT TIRE PRESSURE AND SAID IT SHOULD CORRECT PROBLEM. IT DIDN'T SO I TOOK BACK TO DEALER AND THEY TEST DROVE IT AND SAID THEY NOTICED ALSO HOW STIFF THE STEERING IS. WAS TOLD THAT OTHER MODELS SAME YEAR AND MODE STEERING WERE STIFF. DID NOTHING AT THAT TIME AND TOLD TO KEEP DRIVING AND SEE IF…

Owner-reported narrative. Look up ODI 10466485 at NHTSA ↗

Owner report 10583703 · 2014-04-19 (April 19, 2014)

I INADVERTENTLY VEERED OFF SIDE ROADWAY, (VA HIGHWAY 220) COLLIDING WITH A TREE/ROADSIDE SHRUBS, ETC (WAS KNOCKED UNCONSCIOUS AS FOREHEAD HIT STEERING WHEEL ON INITIAL IMPACT). AIRBAGS DID NOT DEPLOY ALLOWING ME TO SUSTAIN A HEAD INJURY THAT KNOCKED ME UNCONSCIOUS... FOREHEAD WAS GASHED WITH SIGNIFICANT BLEEDING. I WAS TRANSPORTED BY AMBULANCE IN UNCONSCIOUS STATE. DAMAGE TO VEHICLE IS IN EXCESS OF $8,000 SO FAR AS VEHICLE STILL IN REPAIR SHOP WITH MASSIVE FRONT END DAMAGE THAT AFFECTS STEERING LINKAGE, ETC. THE IMPACT OF VEHICLE AGAINST FOL…

Owner-reported narrative. 19,895 miles reported. Look up ODI 10583703 at NHTSA ↗

Owner report 10994499 · 2017-06-12 (June 12, 2017)

I RECENTLY RECEIVED A LETTER FROM GMC INFORMING ME THAT VEHICLES WERE BUILT INCORRECTLY, THAT THE FUEL COMPOSITION SENSOR MAY BE MOUNTED BELOW THE FRAME, EXPOSING THE SENSOR AND FUEL LINES TO ROAD DEBRIS, WHICH MAY RESULT IN THE FUEL LINE EMITTING FUEL ODOR, WEEPING, OR LEAKING. IN ADDITION, THE VEHICLE MAY EXPERIENCE ENGINE STUMBLE, LOSS OF POWER AND STALL WHILE DRIVING. IT DID NOT PROVIDE A PICTURE OF THE FUEL COMPOSITION SENSOR, NOR DID IT PROVIDE INFORMATION AS TO WHERE IT IS LOCATED. I WAS TOLD BY THE CUSTOMER ASSISTANCE CENTER THIS WAS IN…

Owner-reported narrative. 41,400 miles reported. Look up ODI 10994499 at NHTSA ↗

Owner report 11073892 · 2018-02-20 (February 20, 2018)

AS I WAS DRIVING DOWN THE ROAD AT 55 MPH HOUR MY SUV BEGAN TO SHAKE EXTREMELY AND WAS THROTTLING AT VERY HIGH RPM'S AND THE SUV THRASH TO SUDDEN HALT AND CONTINUED TO SHAKE AND IDLE VERY HIGH AND LOUD. I TRIED TO HIT THE GAS TO GET MYSELF OFF THE ROAD AS I WAS ON A 2 LANE HIGHWAY WITH MY 4 YEAR OLD SON IN THE CAR, AND THE ENGINE REVVED AND THE RPM'S SPIKED BUT I WENT NOT MORE THAN 15 MPH, AT THE SAME TIME THE FOLLOWING ERRORS APPEARED ON MY SCREEN: 1) SERVICE STABAILI TRAK 2) ENGINE POWER IS REDUCED SLOWLY I WAS ABLE TO SAFELY GET THE CAR …

Owner-reported narrative. 98,000 miles reported. Look up ODI 11073892 at NHTSA ↗