# 2021 GMC Sierra 1500 AT4

- Price (advertised): $38,523
- Market price: $45,686
- Deal: Great deal, score 88/100, rank 6 of 23
- Condition: Used
- Mileage: 56,873 mi
- Model year: 2021
- Color: Dark Sky Metallic
- VIN: 1GTU9EET0MZ363844
- Photos: 30
- Dealer: Liberty GMC, Peoria, AZ
- Dealer phone: (623) 977-4000
- Market: Phoenix
- Data as of: 2026-11-13

## Why it ranks where it does

- Advertised at $38,523, $7,163 (15.7%) under its market price of $45,686.
- Market price is what a 2021 GMC Sierra 1500 with 56,873 miles is advertised for around Phoenix.
- 56,873 miles is below the 60,000 typical for its age.
- Ranked 6 of 23 comparable 2021 GMC Sierra 1500 in Phoenix, score 88 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: 4 to 5 of 5 by version
- Frontal crash: 4 of 5
- Side crash: 5 of 5
- Rollover: 4 of 5
- Recall campaigns issued for this model year: 7
- Owner complaints filed with NHTSA for this model year: 608
- A recall campaign covers the model year, not this one car. Check this car's VIN: https://www.nhtsa.gov/recalls?vin=1GTU9EET0MZ363844

## Specs

- Engine: 3.0L 6-Cylinder In-Line
- Transmission: Automatic
- Fuel: diesel
- Stock number: P21483
- First listed: 2026-10-02

## Itemized price

- Retail Price: $37,824
- Documentation Fee: $699
- Liberty Price: $38,523
- Starting Price: $38,523
- Price history: 2026-10-05 $42,594, 2026-10-07 $42,091, 2026-10-15 $40,801, 2026-10-24 $40,674, 2026-10-31 $40,431, 2026-11-01 $40,516, 2026-11-06 $39,160, 2026-11-13 $38,523

## Real alternatives nearby

- Costs less: [2019 GMC Sierra 1500 SLT](https://carfinity.ai/car/2019-gmc-sierra-1500-slt-618985c486eb/) at $36,616, 37,279 mi, AutoNation Chevrolet Gilbert
- Costs less: [2021 GMC Sierra 1500 Elevation](https://carfinity.ai/car/2021-gmc-sierra-1500-elevation-f09432c30ed9/) at $35,285, 42,872 mi, Henry Brown Buick GMC
- Costs less: [2023 GMC Sierra 1500 Elevation](https://carfinity.ai/car/2023-gmc-sierra-1500-elevation-e1f00b027854/) at $35,664, 28,006 mi, courtesychev.com
- A step up: [2020 GMC Sierra 1500 Denali](https://carfinity.ai/car/2020-gmc-sierra-1500-denali-a9cfae704507/) at $41,990, 25,859 mi, Coulter on Camelback
- A step up: [2021 GMC Sierra 1500 Denali](https://carfinity.ai/car/2021-gmc-sierra-1500-denali-1ab06257e74f/) at $42,572, 30,570 mi, billluke.com
- A step up: [2024 GMC Sierra 1500 Elevation](https://carfinity.ai/car/2024-gmc-sierra-1500-elevation-ea813fe297a9/) at $39,697, 20,973 mi, tempehonda.com

- Page: https://carfinity.ai/car/2021-gmc-sierra-1500-at4-c7f575e80e4e/
- See it on the dealer's site: https://carfinity.ai/go/c7f575e80e4e
- More like it: https://carfinity.ai/used/gmc-sierra-1500/phoenix-az/