Trim Report

GMC Terrain AT42026

Includes:TERRAIN|AT4
$15,795
Starting From
3,117
Active Listings
—
Avg Mileage

Sourced from 3,117 active dealer listings as of

Min $15,795
Max $48,409
From $15,795
Fresh

AT4 Market Overview

All Trims Combined
From$22,792
$23K–$63K
9,330 listings25,011 avg miles
AT4
From$15,795
3,117 listings|$16K–$48K
Denali
From$1,500
2,906 listings|$2K–$63K
Elevation
From$16,980
5,180 listings|$17K–$42K
SLE
From$625
3,681 listings|$625–$37K
SLT
From$900
2,675 listings|$900–$42K

2026 GMC Terrain AT4 Pricing

Price Trend

Building price history...

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Where to Find GMC Terrain AT4

Location data for all 2026 GMC Terrain trims combined

42States

11% of the market sits in Michigan, though listings span 42 states. Expand your search and you'll find more options at better prices.

GMC Terrain Safety & Reliability

Safety data for all 2026 GMC Terrain trims

Elevated

The 2026 GMC Terrain has a elevated safety risk profile with 0 recall campaigns and 15 NHTSA complaints. Before buying, verify that all recalls have been completed. It's free at any dealer.

0
Recalls
15
Complaints
0
Crashes
1
Fires

Source: National Highway Traffic Safety Administration (NHTSA)

Top Complaint Areas

Across 1 model years, 15 owners have filed complaints about the 2026 GMC Terrain. UNKNOWN OR OTHER issues top the list, so ask the seller about this area specifically during your inspection.

01Unknown Or Other5
02Power Train2
03Visibility/wiper1
04Suspension1
05Steering,suspension,wheels1
15 total across 1 model years (2026–2026)Full data at NHTSA.gov
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GMC Terrain Fuel Economy

EPA fuel economy data for all 2026 GMC Terrain trims

25–27mpg combined
·
24-26city
·
26-28hwy
·
$1,600-$1,750/yr

Across 3 configurations, the 2026 GMC Terrain returns 25–27 MPG combined. Choose the thriftier option if you're commuting; the sportier setup if you're not counting gallons.

By Trim
Terrain FWD - Automatic (variable gear ratios)
27mpg
1.5L 4-cyl Turbo · Front-Wheel Drive
26 city28 hwy~$1,600/yr5/10 Average
Terrain AWD - Automatic 8-spd
25mpg
1.5L 4-cyl Turbo · All-Wheel Drive
24 city28 hwy~$1,750/yr5/10 Average
Terrain AWD Denali/AT4 - Automatic 8-spd
25mpg
1.5L 4-cyl Turbo · All-Wheel Drive
24 city26 hwy~$1,750/yr5/10 Average

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

AT4 Trim Buyer Questions

What to know about the 2026 GMC Terrain AT4

How does the AT4 compare to other GMC Terrain trims?

Every GMC Terrain trim targets a different buyer. The 2026 model page compares all available trims side by side.

What should I know about maintaining the 2026 GMC Terrain AT4?

The AT4 shares its core mechanicals with other GMC Terrain trims, so major service intervals are similar. Watch for unknown or other issues, the most commonly reported problem area. The 2026 model page has the details.

What are the best years for the GMC Terrain AT4?

Check the price-to-mileage ratio for each GMC Terrain AT4 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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