2020 GMC Terrain: raw data

Every record we hold for this vehicle, as plain tables, with nothing added. The consumer page shows the same records with the maintenance schedule, price ranges and nearby shops around them.

vehicle2020 / gmc / terrain
known issues7 clusters (reviewed 2026-08-20)
complaints195 on file (2019-11-02 → 2026-09-08)
recalls2
investigations0
fars26 occupant deaths, crash years 2010-2024 (legacy-code)
indexedyes
licenseCC BY 4.0 (derived)

Known Issues clusters all years →

Backup camera blue-screen failureBACK OVER PREVENTION11 complaints2024-11 → 2026-06terrain-2020-backup-camera-blue-screen
  • 11701012 The rear backup camera in my 2020 GMC Terrain failed
  • 11658372 My backup camera in my 2020 vehicle has failed twice
  • 11691421 Backup camera not working and has a blue screen
Sunroof drainage leak causing interior water intrusionUNKNOWN OR OTHER7 complaints2023-08 → 2026-08terrain-2020-sunroof-drainage-leak
  • 11756698 During heavy rain, the sunroof on my Terrain leaked badly enough to allow a substantial amount of water into the vehicle
  • 11631628 The contact stated that rain water had leaked from the sunroof drainage into the vehicle causing the floor carpets to become saturated with water and mold had developed inside the vehicle
  • 11541554 After heavy rain the backseat of the car was flooded as well as the rear wheel well likely due to the sunroof not draining properly
Brake vacuum pump failure causing loss of brakingSERVICE BRAKES68 complaints2020-09 → 2026-07terrain-2020-brake-vacuum-pump-failure
  • 11742437 While commuting to work in [XXX], my GMC Terrain experienced a sudden, catastrophic failure of the brake vacuum pump while traveling at highway speeds
  • 11647165 My 2020 GMC Terrain (under 100K miles) was running great until one day, after starting the vehicle, I shifted into reverse and felt soft brakes before the engine suddenly shut off
  • 11689847 On my 2020 GMC terrain the vacuum pump failed and caused my braking system to go out completely
Fuel pump control module failure causing stallingFUEL/PROPULSION SYSTEM16 complaints2023-03 → 2026-08terrain-2020-fuel-pump-control-module-stall
  • 11755525 While driving home from work my 2020 GMC Terrain stalled and turned off
  • 11749649 Vehicle was filled with a full tank of gas, went to crank the car up to go home from work it acted like it wanted to crank but seemed to be getting no gas
  • 11744805 The contact stated that shortly after refueling the vehicle, the vehicle suddenly stalled while accelerating from a stop light
Catastrophic engine failure requiring replacementENGINE11 complaints2021-11 → 2026-03terrain-2020-catastrophic-engine-failure
  • 11724322 Catastrophic engine failure; no warning lights,etc. took place on or about end of January 2026
  • 11633480 The engine in my 2020 GMC Terrain is consuming oil at an alarming rate, burning through a full supply within one hour of operation
  • 11614861 Car was very well maintained 2020 GMC Terrain, no warnings prior to the issues
Intermittent hesitation to accelerate from a stopPOWER TRAIN11 complaints2022-02 → 2026-08terrain-2020-acceleration-hesitation
  • 11731643 Random problems accelerating
  • 11673104 I have been experiencing loss of power when going from a full stop to acceleration
  • 11478874 In January 2022, I purchased a 2020 GMC Terrain from a local GMC certified dealership along with an extended warranty
Instrument cluster and infotainment display blackoutELECTRICAL SYSTEM9 complaints2020-11 → 2025-12terrain-2020-infotainment-display-blackout
  • 11707653 Towards the tail end of a nearly 2.5 hour drive, the Automatic Theft Deterrent System was activated on the interstate
  • 11439538 While driving instrumental panel and infotainment panel completely blacked out for no reason at all
  • 11374234 TWICE WITHIN THE LAST TWO MONTHS MY ENTIRE RADIO SHUT OFF, MY SCREEN WENT BLACK AND SO DID MY GAUGES FOR AT LEAST 20 SECONDS

NHTSA complaints (summary) all years →

countearliest_datelatest_datecrash_flaggedfire_flaggedtop_components
1952019-11-022026-09-0872SERVICE BRAKES:70; ENGINE:57; UNKNOWN OR OTHER:34; POWER TRAIN:27; ELECTRICAL SYSTEM:27

Recalls all years →

campaign_numberreport_received_datecomponentsummaryconsequenceremedy
20V66800029/10/2020POWER TRAIN:AUTOMATIC TRANSMISSIONGeneral 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.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.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.
23V33900011/05/2023CHILD SEAT:VEHICLE LATCH ANCHORGeneral 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."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.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.

Investigations all years →

none listed

FARS occupant deaths all years →

crash_yearsoccupant_deathsmatch_typevpic_recovered
2010-202426legacy-code0

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road.

Cite this

Derived data is CC BY 4.0. Link back to the page you used. Text and BibTeX below.

Wrench.Pro (2026). 2020 GMC Terrain vehicle data [dataset]. https://www.wrench.pro/data/vehicles/2020/gmc/terrain
@misc{wrenchpro_2020_gmc_terrain_2026,
  author = {Wrench.Pro},
  title = {Wrench.Pro vehicle data: 2020 GMC Terrain},
  year = {2026},
  howpublished = {\url{https://www.wrench.pro/data/vehicles/2020/gmc/terrain}},
  note = {Derived from NHTSA public records. CC BY 4.0.}
}

hub · known-issues · methodology · license · research (interpretation)