REAL DEALER INVENTORY · ONE PREMIUM MARKETPLACE
Sell My Car
← All vehicles
Sheehan Buick GMC · Lighthouse Point, FL

2020 GMC Sierra 1500 AT4

67,877 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2020
MakeGMC
ModelSierra 1500
TrimAT4
VIN
Stock numberET950A
Mileage67,877 miles
BodyPickup
Engine3.0L 6-cyl turbo
Cylinders6
Displacement3.0L
TransmissionAutomatic
Drivetrain4WD
FuelDiesel
MPG15 city / 19 hwy
ExteriorOnyx Black

Vehicle description

Experience premium performance and rugged capability with this 2020 GMC Sierra 1500 AT4 Crew Cab 4x4. Powered by a robust Duramax 3.0L Diesel Turbo I6 engine paired with a 10-speed automatic transmission, this truck is ready for any adventure. The AT4 off-road tuned suspension, hill descent assist, and electronic hi-lo 4WD selector ensure you conquer tough terrain with confidence. Enjoy top-tier comfort with heated and ventilated leather-trimmed seats, dual-zone automatic climate control, and a heated steering wheel. The GMC Infotainment System features an 8-inch touchscreen with Apple CarPlay, Android Auto, Bluetooth®, and a Wi-Fi hotspot for ultimate connectivity. Convenience features like a MultiPro split-folding tailgate, power-folding mirrors, remote engine start, spray-on bedliner, trailer brake controller, and LED lighting throughout add utility and style. Safety comes standard with rearview camera, lane keeping assist, stability control, and more. Make every drive exceptional in this well-equipped, reliable Sierra 1500 AT4.

Features & options (19)

  • Bluetooth®
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Leather Seats
  • Wireless Phone Charging
  • Blind Spot Monitor
  • Navigation System
  • Parking Assistance
  • Cruise Control
  • DriveType: Four Wheel Drive
  • City: 15 MPG
  • Hwy: 19 MPG
  • Combined: 17 MPG
  • Fuel System: Direct Injection
  • Fuel Tank Capacity: 24 gal
  • Fuel Type: Diesel Fuel
  • Horse Power: 277
  • Rear Wheel: Single

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 250 miles of Lighthouse Point, Florida
Asking price$40,863Dealer asking price · 67,877 mi
Market value$32,682Market value · based on 6 comparable cars
vs. market High price+25.0%High price · based on 6 comparable cars

Where this price sits

Among the highest-priced · 0% of 6 similar listings ask more than this car.

$23,497lowest$40,863highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+25.0%
−25%Market value+25%
High price$8,181 above the market value of $32,682

Price range

$40,863
$23,497$40,863
7th lowest price of 7 similar listings within 250 milesTick marks the market value · range of 6 similar listings

AutosXchange Insights

  • Compared with 6 used 2020 GMC Sierra 1500 AT4 listings within 250 mi.
  • Priced $8,181 above the market value of 6 comparable cars — compare options, condition and history.
  • 7th lowest price of 7 similar listings within 250 miles.
  • Has about 25,000 fewer miles than similar listings.
  • About 9,697 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # ET950A — 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 8, 2026. No price change at this dealership since Nov 8 ($40,863).

$40.6k$40.7k$40.8k$40.9k$41.0k$41.1kNov 8Nov 9Nov 10Nov 11Nov 12

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); 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 2020 Sierra 1500 AT4 · used · any miles · within 250 miles of Lighthouse Point, Florida. All 6 comparable cars for sale, nearest first.

AutosXchange Intel uses current dealer-advertised asking prices, not completed sales or appraisals. It compares the same trim and condition (new or used) where at least three are listed nationwide, and adjusts the expected price for mileage; it is not adjusted for options, condition or accident history. Similar listings are searched within 50, 100 and 250 miles of the dealer first, then the dealer's state, then nationwide. The left gauge spans ±25% of the expected price. How AutosXchange price analysis works

More GMC Sierra 1500 near Lighthouse Point

All years and trims. Nearest first.

2021 GMC Sierra 1500 Elevation vehicle photo2021 GMC Sierra 1500 Elevation103,768 miles · Sheehan Buick GMC · Lighthouse Point, FL · 0 mi away$27,6452022 GMC Sierra 1500 Denali vehicle photo2022 GMC Sierra 1500 Denali50,369 miles · Sheehan Buick GMC · Lighthouse Point, FL · 0 mi away$51,3782024 GMC Sierra 1500 Denali vehicle photo2024 GMC Sierra 1500 Denali37,833 miles · Sheehan Buick GMC · Lighthouse Point, FL · 0 mi away$53,3332024 GMC Sierra 1500 Denali Ultimate vehicle photo2024 GMC Sierra 1500 Denali Ultimate18,918 miles · Sheehan Buick GMC · Lighthouse Point, FL · 0 mi away$65,4732024 GMC Sierra 1500 Denali Ultimate vehicle photo2024 GMC Sierra 1500 Denali Ultimate15,488 miles · Sheehan Buick GMC · Lighthouse Point, FL · 0 mi away$67,0752025 GMC Sierra 3500 HD Denali vehicle photo2025 GMC Sierra 3500 HD Denali1,076 miles · Sheehan Buick GMC · Lighthouse Point, FL · 0 mi away$83,4542026 GMC Sierra 2500 HD Pro vehicle photo2026 GMC Sierra 2500 HD Pro1 miles · Sheehan Buick GMC · Lighthouse Point, FL · 0 mi away$46,7142026 GMC Sierra 2500 HD Pro vehicle photo2026 GMC Sierra 2500 HD Pro1 miles · Sheehan Buick GMC · Lighthouse Point, FL · 0 mi away$46,919