2026 GMC Terrain: problems, recalls and reliability
1 recall and 33 owner complaints on record; the weakest area is forward collision avoidance (16% of complaints).
Data updated weekly · 7 new complaints in the last 90 days · latest recall Feb 2026
All counts are reports filed with NHTSA in the United States - US market only, not worldwide totals.
Common problems
Computed from 33 owner complaints filed with NHTSA for this exact model year.
“a failing telematics module on your 2026 GMC Terrain is causing network corruption, leading to an erratic speedometer and loss of driver assistance systems while driving.”Owner report · Lane Departure · Sep 2026
“The contact owns a 2026 GMC Terrain. The contact stated that while driving 10 MPH and pulling into a parking lot, the vehicle was shifted into drive(D) and the driver's door lock unexpectedly unlocked. The contact stated that on another occasion, a passenger in the front passenger's seat noticed the same failure with the passenger's side door lock. The vehicle was taken to the dealer, where it was not diagnosed or repaired. The contact expressed concern that the failure was hazardous and posed a safety risk because the doors could open while the vehicle was moving. The manufacturer was not made aware of the failure. The failure mileage was approximately 2,500.”Owner report · Latches/Locks/Linkages · Sep 2026
“Avis Rental. Vehicle simply shut down while driving and would not re-start. Vehicle could NOT be put into neutral to move from roadway. Emergency services vehicles had to remain on site awaiting tow vehicle. Very dangerous situation.”Owner report · Electrical System · Sep 2026
Show 7 more owner reports
“When starting to accelerate from a red light. The car in front of us was accelerating faster. Yet our car initiated an emergency braking action at around 15 MPH. It was very jarring and I still have a headache more yhan 1 hour after the incident.”Owner report · Forward Collision Avoidance · Aug 2026
“My vehicle is making a squeaky sound/noise when breaking and getting louder. I took it in for service and they couldn't seem to find the issue. It's coming from the front end of the vehicle”Owner report · Service Brakes · Jul 2026
“The Screen calls my own phone number and hangs up over and over if I just ended a call. I am not able to use any part of the screen afterwards such as my map. It stays like that until I disconnect the Bluetooth and wifi from my phone while trying to drive. Safety issue!”Owner report · Unknown Or Other · Jun 2026
“Shimmy, shake, wobble, after TSB 26-NA-109 repair, replace front springs, vehicle feels less stable at highway speeds. The initial condition, Shimmy, Shake, Wobble, under moderate acceleration, still exists after last repair attempt.”Owner report · Suspension · May 2026
“The contact owns a 2026 GMC Terrain. The contact stated that while attempting to depress the accelerator pedal after coming from a complete stop, the vehicle started wobbling. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed; however, the diagnostic result was unknown. The vehicle was not repaired. The contact associated the failure with Technical Service Bulletin: PIT6466 (Shimmy, Shake or Wobble When Leaving a Stop); however, the VIN was not included in the bulletin. The manufacturer was notified of the failure and informed the contact that there was no recall for the failure, and opened a case. The failure mileage was 5,200.”Owner report · Power Train · Mar 2026
“The contact owns a 2026 GMC Terrain. The contact stated that there was an abnormal clunking sound coming from the front driver’s side suspension while driving over bumps in the roadway, and while braking and turning the steering wheel. No warning lights were illuminated. The vehicle was taken to a local dealer, where a test drive was performed; however, the dealer was unable to determine the cause of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 14.”Owner report · Suspension · Jan 2026
“Purchased NEW 2026 GMC Terrain Elevation, and it came with NO User Manual. I was told by the dealership (Al Serra GMC in Grand Blanc Michigan that i could either purchase one for $50.00+ dollars, PLUS TAX & $25.00 SHIPPING, or d/l it via the infotainment system in the car, WHICH DID NOT WORK! Talk about [XXX] A VIETNAM VET!!! We are both [XXX] old & need a manual, so bought a reproduction of the original via eBay for $50.00. At least GM could reimburse the cost of the manual… INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”Owner report · Unknown Or Other · Jan 2026
When filing, owners marked a crash in 1 of these complaints and injuries in 1 - self-reported to NHTSA, not verified accident statistics.
Recalls - 1 campaign
General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cadillac OPTIQ, Chevrolet Colorado, Equinox EV, GMC Canyon, 2026 Buick Enclave, Envision, Cadillac CT5, Escalade, Escalade ESV, Escalade IQ, Escalade IQL, LYRIQ, VISTIQ, Chevrolet Blazer EV, Corvette Convertible, Corvette Coupe, Corvette Convertible E-Ray, Equinox, Silverado 1500, 2500, 3500, Silverado EV, Suburban 1500, Tahoe, Traverse, GMC Acadia, Hummer EV Pickup, Hummer EV SUV, Sierra 1500, 2500, 3500, Sierra EV, Terrain, Yukon, and Yukon XL vehicles. The radio may not have been set to the correct status to download the electronic owner's manual during production. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, 'Occupant Protection.'
Remedy: Dealers will reset the vehicle radio, which will facilitate automatic download of the electronic owner's manual, free of charge. Owner notification letters were mailed April 16, 2026. Owners may contact GM customer service at 1-866-467-9700, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-333-4223. The manufacturer's number for this recall is N252540430. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 26, 2026.
How other years compare
Counts are not adjusted for time on the road here - see all Terrain years ranked fairly for the age-adjusted comparison.
Check your exact Terrain by VIN
Recalls and equipment differ between individual vehicles. Decode your VIN to see what applies to yours.
Open VIN decoderFrequently asked questions
Is the 2026 GMC Terrain reliable?
NHTSA has 33 owner complaints and 1 recall campaign on record for the 2026 GMC Terrain. The most complained-about area is forward collision avoidance (16% of complaints).
At what mileage do 2026 GMC Terrain problems usually appear?
Half of the complaints that mention mileage were filed at 2,500 miles or less.
Does the 2026 GMC Terrain have open recalls?
1 recall campaign has been issued, the latest concerning equipment. Check your specific vehicle by VIN - recall repairs are free at franchised dealers.
Source: NHTSA recall campaigns and owner complaints (public domain). Counts reflect reports on file and are not a defect rate.