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2026 GMC Terrain

AT4 AWD

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What the AT4 adds over the Elevation

Spec	Elevation	AT4
Curb weight (maximum)	3446 lbs	3687 lbs
Curb weight (minimum)	3446 lbs	3687 lbs
Torque	184 lb-ft	203 lb-ft
Fuel tank capacity	14.8 gal	15.6 gal
Ground clearance	7.7 in	7.9 in
Gross vehicle weight rating	4630 lbs	4850 lbs
MPG (city)	26 mpg	24 mpg
MPG (combined)	27 mpg	25 mpg
MPG (highway)	28 mpg	26 mpg
Overall height	66.1 in	66.5 in
Overall length	181 in	181.4 in
Front suspension type	McPherson Strut	McPherson Strut with Hydraulic Rebound Stops
Tire size	17 AWT	17 AT
Final drive ratio	5.8	3.5
Transmission type	cvt	automatic

Standard here, not on the base trim: 17-in. standard wheels (Elevation + AT4), McPherson Strut with Hydraulic Rebound Stops front suspension (AT4), Off-road tuned suspension (AT4 standard)

Specifications

Source: manufacturer press kit

Brakes

Front brake diameter	300 mm
Front brake type	Vented Disc
Rear brake diameter	288 mm
Rear brake type	solid disc

Cargo

Cargo volume behind 1st row	63.5 cu-ft
Cargo volume behind 2nd row	29.8 cu-ft

Dimensions Exterior

Ground clearance	7.9 in
Overall height	66.5 in
Overall length	181.4 in
Overall width	74.5 in
Wheelbase	107.5 in

Engine Basics

Aspiration	twin turbo
Cylinder count	4
Fuel injection system	gdi mpi
Engine type (full description)	1.5L Turbocharged 4-Cylinder
Valve configuration	Dual overhead camshafts; four valves/cylinder

Engine Output

Horsepower	175 hp
Torque	203 lb-ft

Fuel Economy

MPG (city)	24 mpg
MPG (combined)	25 mpg
MPG (highway)	26 mpg

Fuel System

Fuel tank capacity

15.6 gal

Headroom

Front headroom	40 in
Second-row headroom	39.2 in

Legroom

Front legroom	40.6 in
Second-row legroom	39.2 in

Seating

Passenger seating capacity

Shoulder Room

Front shoulder room	57.7 in
Second-row shoulder room	55.7 in

Steering

Steering type	Dual pinion rack electric power steering
Turning radius (curb-to-curb)	18.6 ft

Suspension

Front suspension type	McPherson Strut with Hydraulic Rebound Stops
Rear suspension type	Four-link Independent

Tires

Tire size

17 AT

Transmission

Final drive ratio	3.5
Transmission speeds	8
Transmission type	automatic

Weights

Curb weight (maximum)	3687 lbs
Curb weight (minimum)	3687 lbs
Gross vehicle weight rating	4850 lbs

Wheels

Wheel diameter

17 in

Standard & optional equipment

Source: manufacturer press kit

Safety1 std · 0 opt

Four Wheel Disc with E-boost ABS/ESC

Exterior1 std · 0 opt

17-in. standard wheels (Elevation + AT4)

Powertrain2 std · 0 opt

All Wheel Drive (AWD)
1.5L Turbocharged 4-Cylinder engine, 175 hp [131.3 kW] @ 5800 rpm (AWD), 8-speed automatic

Chassis4 std · 0 opt

Dual pinion rack electric power steering
Four-link Independent rear suspension
McPherson Strut with Hydraulic Rebound Stops front suspension (AT4)
Off-road tuned suspension (AT4 standard)

Ranked by what shoppers ask about first; standard equipment before options.

Transcribed from the manufacturer's official press kit for the 2026 Terrain. Confirm with the window sticker for a specific unit.

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Common questions about the AT4

Source: EPA, NHTSA and manufacturer press kits

What does the 2026 GMC Terrain AT4 add over the Elevation?

Against the Elevation, 3 features become standard that the Elevation does not and 15 published specifications differ. Both lists are on this page, taken from the manufacturer's own press material.