THE SPECS GUIDE

2021 GMC Terrain

Find your trim. See what changes.

Compare recorded engines, drivetrains and specifications, then open the VIN pattern that matches your car.

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Choose up to three VIN patterns. Each column describes one recorded pattern.

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Specification SLT · AWD 3GKALVEV-M SLE · FWD 3GKALMEV-M SLT · FWD 3GKALPEV-M
Engine 1.5L 4-cyl 1.5L 4-cyl 1.5L 4-cyl
Drivetrain All-wheel drive Front-wheel drive Front-wheel drive
Transmission Automatic Automatic Automatic
Fuel Gasoline Gasoline Gasoline
Body Sport Utility Vehicle [SUV] Sport Utility Vehicle [SUV] Sport Utility Vehicle [SUV]
Seats 5 5 5
Doors 4-door 4-door 4-door
Median asking price $18,990 $17,495 $18,307
Price observations 319 225 215
Price sample updated Oct 11, 2026 Oct 11, 2026 Oct 11, 2026

Missing data does not mean a feature is absent. Prices are advertised asking prices for each pattern’s own sample, not completed sale prices or a trim-wide average.

EXPLORE THE LINEUP

Find your Terrain

Grouped by recorded trim, with engine and drive variants underneath. Open a variant to see every source pattern.

2021 Terrain

Denali

1 VIN pattern
1.5L 4-cyl · Gasoline · Front-wheel drive · Automatic 1 pattern · View specs
3GKALSEV-M → 166 VINs in our data

Sport Utility Vehicle [SUV] · 5 seats

No qualifying asking-price sample for this pattern.

2021 Terrain

SL

1 VIN pattern
1.5L 4-cyl · Gasoline · Front-wheel drive · Automatic 1 pattern · View specs
3GKALLEV-M → 12 VINs in our data

Sport Utility Vehicle [SUV] · 5 seats

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

2021 Terrain

SLE

2 VIN patterns
1.5L 4-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
3GKALTEV-M → 7,347 VINs in our data

Sport Utility Vehicle [SUV] · 5 seats

$18,495 median asking price

224 price observations · Updated Oct 11, 2026

1.5L 4-cyl · Gasoline · Front-wheel drive · Automatic 1 pattern · View specs
3GKALMEV-M → 9,118 VINs in our data

Sport Utility Vehicle [SUV] · 5 seats

$17,495 median asking price

225 price observations · Updated Oct 11, 2026

2021 Terrain

SLT

4 VIN patterns
1.5L 4-cyl · Gasoline · All-wheel drive · Automatic 1 pattern · View specs
3GKALVEV-M → 9,961 VINs in our data

Sport Utility Vehicle [SUV] · 5 seats

$18,990 median asking price

319 price observations · Updated Oct 11, 2026

1.5L 4-cyl · Gasoline · Front-wheel drive · Automatic 1 pattern · View specs
3GKALPEV-M → 8,444 VINs in our data

Sport Utility Vehicle [SUV] · 5 seats

$18,307 median asking price

215 price observations · Updated Oct 11, 2026

Engine not recorded · Drive not recorded 1 pattern · View specs
1GKALPEV-M → 1 VINs in our data

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

Engine not recorded · Front-wheel drive · Automatic 1 pattern · View specs
3GKALPVE-M → 1 VINs in our data

Sport Utility Vehicle [SUV] · 5 seats

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

Source: manufacturer specifications decoded through NHTSA vPIC, alongside VIN and listing records in our dataset. Trim groups are for browsing; shared labels do not establish identical equipment. Confirm options on the specific vehicle.

THE MARKET VIEW

What are 2021 Terrains listed for?

Explore model-year asking prices and available market history.

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BEFORE YOU CHOOSE

Go beyond the spec sheet

Equipment, fuel economy and safety results can vary with the vehicle’s engine, drivetrain and options.

Fuel economy

Match the engine and drivetrain to an EPA entry. A model-year fuel estimate may describe a different variant from yours.

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