# 2020 GMC Terrain SLT

- Price (advertised): $13,916
- Market price: $13,600
- Deal: Fair price, score 43/100, rank 4 of 10
- Condition: Used
- Mileage: 110,129 mi
- Model year: 2020
- Color: Graphite Gray
- Drivetrain: Front-Wheel Drive
- VIN: 3GKALPEX5LL171123
- Photos: 30
- Dealer: Mercedes-Benz of McKinney, McKinney, TX
- Dealer phone: (844) 302-4009
- Market: Dallas
- Data as of: 2026-11-12

## Why it ranks where it does

- Advertised at $13,916, $316 over its market price of $13,600.
- Market price is what a 2020 GMC Terrain with 110,129 miles is advertised for around Dallas.
- 110,129 miles is above the 72,000 typical for its age.
- Ranked 4 of 10 comparable 2020 GMC Terrain in Dallas, score 43 out of 100.

Price is the dealer's advertised price, before tax, title and registration. Confirm price and availability with the dealer.

## Safety and recalls

- NHTSA overall safety rating: 5 of 5
- Frontal crash: 5 of 5
- Side crash: 5 of 5
- Rollover: 4 of 5
- Recall campaigns issued for this model year: 2
- Owner complaints filed with NHTSA for this model year: 198
- A recall campaign covers the model year, not this one car. Check this car's VIN: https://www.nhtsa.gov/recalls?vin=3GKALPEX5LL171123

## Specs

- Engine: 2.0L 4-Cylinder In-Line
- Transmission: Automatic
- Fuel: gas
- Stock number: TLL171123
- First listed: 2026-09-28

## Itemized price

- Price: $13,096
- Documentary Fee: $220
- Transparent PriceNo Hidden Fees: $13,316
- Price history: 2026-09-28 $16,219, 2026-10-10 $15,718, 2026-10-20 $14,618, 2026-10-26 $14,217, 2026-11-06 $13,916, 2026-11-13 $13,316

## Real alternatives nearby

- Costs less: [2017 GMC Terrain SLE-1](https://carfinity.ai/car/2017-gmc-terrain-sle-1-b742ace2f9e1/) at $11,985, 69,977 mi, Grubbs Acura
- Costs less: [2018 GMC Terrain SLE](https://carfinity.ai/car/2018-gmc-terrain-sle-637d223fd7b6/) at $12,888, 105,268 mi, freemangrapevine.com
- Costs less: [2020 GMC Terrain SLE](https://carfinity.ai/car/2020-gmc-terrain-sle-ae7ed8260606/) at $12,123, 131,199 mi, mylegacychevroletgmc.com
- A step up: [2017 GMC Terrain SLT](https://carfinity.ai/car/2017-gmc-terrain-slt-9fdac66b559f/) at $14,799, 69,085 mi, freemangrapevine.com
- A step up: [2020 GMC Terrain SLE](https://carfinity.ai/car/2020-gmc-terrain-sle-6f067cec8d7c/) at $15,507, 77,338 mi, hileymazdafortworth.com
- A step up: [2020 GMC Terrain SLE](https://carfinity.ai/car/2020-gmc-terrain-sle-db072cc88bbd/) at $15,324, 95,000 mi, Clay Cooley Chrysler Dodge Jeep RAM Dallas

- Page: https://carfinity.ai/car/2020-gmc-terrain-slt-c2ede97a4014/
- See it on the dealer's site: https://carfinity.ai/go/c2ede97a4014
- More like it: https://carfinity.ai/used/gmc-terrain/dallas-tx/
