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Arrowhead Cadillac · Glendale, AZ

2021 GMC Sierra 1500 AT4

42,691 miles · truck · Price dropped $1,573

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2021
MakeGMC
ModelSierra 1500
TrimAT4
Stock number90452A
Mileage42,691 miles
BodyPickup
EngineEngine: 6.2L, EcoTec3 V-8, DI, Dynamic Fuel Mgt, V V T
Cylinders8
Displacement6.2L
Horsepower420
TransmissionAutomatic
Drivetrain4WD
FuelGasoline
MPG14 city / 19 hwy
ExteriorOnyx Black
InteriorJET BLACK WITH KALAHARI ACCENTS, PERFORATED LEATHE
Doors4

Vehicle description

Experience the power and versatility of the 2021 GMC Sierra 1500 AT4 with its robust 6.2L V8 engine and advanced off-road capabilities designed for demanding drivers. This Onyx Black 4D Crew Cab truck combines rugged performance with refined comfort. Under the hood, the Ecotec3 6.2L V8 engine pairs with a smooth 10-speed automatic transmission and four-wheel drive, supported by a locking limited-slip differential for enhanced traction on any terrain. Tow hooks and a tow hitch make hauling heavy loads effortless, while aluminum wheels and 4-wheel disc brakes ensure reliable stopping power. Inside, the Sierra AT4 offers premium features tailored for driver convenience and comfort. Heated and cooled bucket seats with power adjustments and lumbar support accommodate both driver and passenger, complemented by seat memory and pass-through rear seating. The heated steering wheel wrapped in leather adds a touch of luxury, alongside adjustable steering and mirror memory. Climate control with multi-zone A/C keeps everyone comfortable, while keyless entry and remote engine start provide modern ease. Safety remains a priority with daytime running lights, multiple airbags including front side and rear head airbags, stability and traction control, and a backup camera for confident maneuvering. Additional exterior features like fog lamps, heated power folding mirrors, privacy glass, and an integrated tailgate step enhance functionality and style. Be sure to call or visit Arrowhead Cadillac to discover more. Your new favorite vehicle awaits - don't let someone else drive it home! ‌

Features & options (4)

  • Max seating capacity
  • Fuel System
  • Fuel tank capacity
  • Horsepower

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 50 miles of Glendale, Arizona
Asking price$43,327Dealer asking price · 42,691 mi
Market value$39,768Market value · based on 4 comparable cars
vs. market High price+8.9%High price · based on 4 comparable cars

Where this price sits

Among the highest-priced · 25% of 4 similar listings ask more than this car.

$32,405lowest$43,500highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+8.9%
−25%Market value+25%
High price$3,559 above the market value of $39,768

Price range

$43,327
$32,405$43,500
4th lowest price of 5 similar listings within 50 milesTick marks the market value · range of 4 similar listings

AutosXchange Insights

  • Compared with 4 used 2021 GMC Sierra 1500 AT4 listings within 50 mi.
  • Priced $3,559 above the market value of 4 comparable cars — compare options, condition and history.
  • 4th lowest price of 5 similar listings within 50 miles.
  • Has about 21,000 fewer miles than similar listings.
  • About 7,115 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # 90452A — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 5, 2026. 2 price changes at this dealership: $45,499 → $43,327 (−$2,172).

$42k$43k$44k$45k$46kNov 5Nov 6Nov 8Nov 9Nov 10Nov 11−$599 Nov 6−$1,573 Nov 10

AutosXchange Intel Hub: Price changes for this model in Arizona · This model in the Intel Hub · Market movers in Arizona

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 11); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2021 Sierra 1500 AT4 · used · any miles · within 50 miles of Glendale, Arizona. All 4 comparable cars for sale, nearest first.

More GMC Sierra 1500 near Glendale

All years and trims. Nearest first.