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2020 GMC Terrain

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2020 GMC Terrain do not stand out strongly from the model-year median of 182.

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When problems were reported

Mileage at the reported incident

Limited mileage data: 40 of 195 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Service Brakes. Review the 63 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 57 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 27 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

7 crash reports2 fire reports3 injury reports

Steering complaints

3 reports
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Mileage unknown · Mar 7, 2026
EngineService BrakesSteering

I was driving 55 miles an hour on an Expressway. And suddenly my truck just shut off.The brake became very hard unable to break very scary situation for me and my children. Engine power was reduced and would not start, many errors came up. The vacuum pump failed, which also caused the cam shafts to fail.The vacuum pump exploded …

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I was driving 55 miles an hour on an Expressway. And suddenly my truck just shut off.The brake became very hard unable to break very scary situation for me and my children. Engine power was reduced and would not start, many errors came up. The vacuum pump failed, which also caused the cam shafts to fail.The vacuum pump exploded into pieces and sent metal into my engine.

NHTSA ODI #11722686

Mileage unknown · Feb 7, 2023
Fuel/propulsion SystemService BrakesSteering

Service brake assists light flashes on dashboard . Steering wheel locks up and jerk’s loose suddenly when making a right turn, in these moments when the steering wheel jerks loose ;hands are off taken off the steering wheel otherwise injury can occur. Battery life 2 -yrs old is not performing optimally. Can not hold a sufficie…

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Service brake assists light flashes on dashboard . Steering wheel locks up and jerk’s loose suddenly when making a right turn, in these moments when the steering wheel jerks loose ;hands are off taken off the steering wheel otherwise injury can occur. Battery life 2 -yrs old is not performing optimally. Can not hold a sufficient charge and ESC light flashes. Vdnt valve leaks discovered.

NHTSA ODI #11506056

2,400 miles · Feb 16, 2021
Power TrainSteeringSuspension

THIS VEHICLE IS UNSAFE DUE TO A VIOLENT SIDE TO SIDE WOBBLE IN THE FRONT END MUCH LIKE THE JEEP DEATH WOBBLE. THIS HAPPENS CONSTANTLY ANYWHERE FROM 30MPH - 70MPH USUALLY AFTER HITTING A SMALL BUMP OR WHEN TURNING HARD. THE TURNING ASPECT IS WHERE IT HAS BECOME VERY DANGEROUS ON SLIPPERY SURFACES AS THE CAR THEN SLIDES OUT. I …

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THIS VEHICLE IS UNSAFE DUE TO A VIOLENT SIDE TO SIDE WOBBLE IN THE FRONT END MUCH LIKE THE JEEP DEATH WOBBLE. THIS HAPPENS CONSTANTLY ANYWHERE FROM 30MPH - 70MPH USUALLY AFTER HITTING A SMALL BUMP OR WHEN TURNING HARD. THE TURNING ASPECT IS WHERE IT HAS BECOME VERY DANGEROUS ON SLIPPERY SURFACES AS THE CAR THEN SLIDES OUT. I LIVE IN THE MOUNTAINS WHERE THIS IS A NORMAL OCCURANCE. I AM ACTUALLY AFRAID TO DRIVE THIS VEHICLE ANY LONGER. THE DEALERS HAVE CONFIRMED THE ISSUE, BUT STATES THAT GM DOES NOT HAVE A FIX FOR THIS AS OF NOW. I HAVE HEARD THIS IS AFFECTING ONLY THE AWD TERRAINS AND EQUINOX PLATFORMS. GM HAS BEEN UNRESPONSIVE TRYING TO GET AN ANSWER OR GETTING THIS FIXED. THE CAR HAS BEEN INTO MULTIPLE DEALERSHIPS SEVERAL TIMES FOR THIS SAME ISSUE AND HAS BEEN HAPPENING SINCE THE CAR TURNED ABOUT 2400 MILES AND HAS BEEN HAPPENING MORE FREQUENTLY SINCE THEN FOR THE PAST 6000 MILES.

NHTSA ODI #11396428

Official recalls

2

23V339000 · Child Seat:vehicle Latch Anchor

May 11, 2023

General Motors, LLC (GM) is recalling certain 2020-2023 Chevrolet Equinox and GMC Terrain vehicles. The four rear-seat lower child seat LATCH anchorage bars may have excessive powder coating, which could prevent a child seat from being installed with the anchorage bars. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."

Consequence & remedy

Consequence: The inability to install a child seat with the LATCH anchorage bars could result in an unsecured child seat, increasing the risk of injury in a crash.

Remedy: Owners are advised to install child seats using the vehicle's rear seat belts until the remedy is complete. Dealers will inspect the latch anchorage bars, and remove and replace the finish, as necessary, free of charge. Owner notification letters were mailed June 2, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N232403240.

20V668000 · Power Train:automatic Transmission

Oct 29, 2020

General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.

Consequence & remedy

Consequence: Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.

Remedy: GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.