Federal safety data shows 2 recalls and 195 complaints for the 2020 GMC Terrain, a elevated safety profile overall. Check the known issues section below for the most common problem areas.

Recalls

195

Complaints

Crashes

Fires

Recall Findings

20V6680002020-29-10

POWER TRAIN:AUTOMATIC TRANSMISSION

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.

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.

View at NHTSA

23V3390002023-11-05

CHILD SEAT:VEHICLE LATCH ANCHOR

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."

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.

View at NHTSA

Source: National Highway Traffic Safety Administration (NHTSA)

Top Complaint Areas

Of 195 issues reported over 1 model years, service brakes problems are the most common for the 2020 GMC Terrain. A pre-purchase inspection should focus here first.

01Service Brakes35

02Unknown Or Other20

03Service Brakes,engine12

04Engine11

05Fuel/propulsion System10

195 total across 1 model years (2020–2020)Full data at NHTSA.gov

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GMC Terrain Fuel Economy

EPA fuel economy data for all 2020 GMC Terrain trims

23–27mpg combined

21-26city

26-30hwy

$2,300-$3,300/yr

The 2020 GMC Terrain delivers 23 to 27 MPG combined across 4 powertrain combinations. If fuel cost matters to you, pay attention to engine and drivetrain. The spread is significant.

By Trim

Terrain FWD - Automatic 9-spd

27mpg

1.5L 4-cyl Turbo · Front-Wheel Drive

26 city30 hwy~$2,300/yr6/10 Average

Terrain AWD - Automatic 9-spd

26mpg

1.5L 4-cyl Turbo · All-Wheel Drive

25 city28 hwy~$2,350/yr5/10 Average

Terrain FWD - Automatic 9-spd

24mpg

2.0L 4-cyl Turbo · Front-Wheel Drive

22 city28 hwy~$3,150/yr5/10 Average

Terrain AWD - Automatic 9-spd

23mpg

2.0L 4-cyl Turbo · All-Wheel Drive

21 city26 hwy~$3,300/yr5/10 Average

Source: U.S. Environmental Protection Agency (EPA)

SL Trim Buyer Questions

What to know about the 2020 GMC Terrain SL

How does the SL compare to other GMC Terrain trims?

Every GMC Terrain trim targets a different buyer. The 2020 model page compares all available trims side by side.

What should I know about maintaining the 2020 GMC Terrain SL?

The SL shares its core mechanicals with other GMC Terrain trims, so major service intervals are similar. Watch for service brakes issues, the most commonly reported problem area. There are 2 recalls to verify before purchase. The 2020 model page has the details.

What are the best years for the GMC Terrain SL?

Check the price-to-mileage ratio for each GMC Terrain SL year. The last year before a generation change is usually the most refined; the first year after is when resale drops fastest. The GMC Terrain overview compares all years side by side.

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