Auto Source · Banning, CA

2021 GMC Sierra 1500 AT4

120,056 miles · truck

1 / 27 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2021

MakeGMC

ModelSierra 1500

Trim4x4 AT4 4dr Crew Cab 5.8 ft. SB

VIN3GTU9EET5MG265179

Stock numberJT56

Mileage120,056 miles

EngineDuramax 3.0L Diesel Turbo I6 277hp 460ft. lbs.

Cylinders6

Displacement3.0L

Horsepower277

TransmissionAutomatic 10-Speed

Drivetrain4WD

FuelDiesel

MPG22 city / 26 hwy

ExteriorWhite

InteriorBlack

Features & options (132)

Bumper Detail - Rear Integrated Corner Step
Exhaust - Dual Tip
Pickup Bed Light - Led
Pickup Bed Liner - Spray-On
Skid Plate(S) - Powertrain
Tailgate - Lift Assist
Tailgate - Multi-Function Split-Folding
Tailgate - Power Locking
Tailgate - Power Open
Tailgate - Removable
Tailgate - Step
Active Grille Shutters
Door Handle Color - Body-Color
Exhaust Tip Color - Polished Aluminum
Fender Lip Moldings - Black
Front Bumper Color - Body-Color
Grille Color - Black
Grille Color - Body-Color Surround
Mirror Color - Black
Rear Bumper Color - Body-Color
Skid Plate(S) - Front
Window Trim - Black
Air Filtration
Armrests - Rear Center With Cupholders
Armrests - Rear Folding
Floor Mat Material - Rubber/Vinyl
Floor Material - Carpet
Floor Mats - Front
Floor Mats - Rear
Front Air Conditioning - Automatic Climate Control
Front Air Conditioning Zones - Dual
Heated Steering Wheel
Rear Vents - Second Row
Steering Wheel Trim - Leather
Assist Handle - Front
Assist Handle - Rear
Capless Fuel Filler System
Center Console - Front Console With Armrest And Storage
Cruise Control
Cupholders - Front
Cupholders - Rear
Easy Entry - Power Driver Seat
Memorized Settings - 2 Driver
Memorized Settings - Driver Seat
Memorized Settings - Side Mirrors
Multi-Function Remote - Panic Alarm
Multi-Function Remote - Proximity Entry System
Multi-Function Remote - Vehicle And Key Memory
One-Touch Windows - 4
Power Outlet(S) - 115v Cargo Area
Power Outlet(S) - 115v Front
Power Outlet(S) - 12v Front
Power Outlet(S) - 12v Rear
Power Outlet(S) - Usb Front
Power Outlet(S) - Usb Rear
Power Steering
Power Windows - Lockout Button
Push-Button Start
Reading Lights - Front
Rearview Mirror - Auto-Dimming
Remote Engine Start/Cabin Preconditioning
Steering Wheel - Tilt And Telescopic
Steering Wheel Mounted Controls - Audio
Steering Wheel Mounted Controls - Cruise Control
Steering Wheel Mounted Controls - Multi-Function
Steering Wheel Mounted Controls - Phone
Steering Wheel Mounted Controls - Voice Control
Storage - Door Pockets
Storage - Front Seatback
Storage - Under Rear Seats
Vanity Mirrors - Dual Illuminating
4wd Selector - Electronic Hi-Lo
4wd Type - Part Time W/ On Demand Setting
Front Brake Type - Ventilated Disc
Front Shock Type - Monotube
Front Spring Type - Coil
Front Struts
Front Suspension Type - Upper And Lower Control Arms
Hill Holder Control
Off-Road Driving Assist - Hill Descent
Pickup Bed Cargo Management - Tie-Down Anchors
Rear Brake Type - Ventilated Disc
Rear Shock Type - Monotube
Rear Spring Type - Leaf
Trailer Stability Control
Tuned Suspension - Off-Road
Abs - 4-Wheel
Axle Ratio - 3.23
Braking Assist
Drive Mode Selector
Electronic Brakeforce Distribution
Front Brake Diameter - 13.6
Front Brake Width - 1.18
Front Stabilizer Bar - Diameter 33 Mm
Front Suspension Classification - Independent
Locking Differential - Rear
Power Brakes
Rear Brake Diameter - 14.2
Rear Brake Width - 0.79
Rear Suspension Classification - Solid Live Axle
Rear Suspension Type - Multi-Leaf
Roll Stability Control
Stability Control
Tow Hooks - Front
Tow/Haul Mode
Traction Control
Trailer Brake Controller
Trailer Hitch
Trailer Wiring - 4-Pin
Trailer Wiring - 7-Pin
Alternator - 170 Amps
Auto Start/Stop
Battery - Heavy Duty
Battery - Maintenance-Free
Battery Rating - 730 Cca
Battery Saver
Connected In-Car Apps - App Marketplace Integration
Connected In-Car Apps - Google Pois
Connected In-Car Apps - Google Search
Driver Assistance App - Roadside Assistance
Electronic Messaging Assistance - Voice Operated
Gauge - Oil Pressure
Gauge - Tachometer
Hands-Free Phone Call Integration - Voice Operated
Infotainment - Gmc Infotainment System
Infotainment Screen Size - 8 In.
Instrument Cluster Screen Size - 4.2 In.
Powertrain Hour Meter
Radio - Voice Operated
Satellite Communications - Voice Guided Directions
Smart Device App Compatibility - Mygmc With Connected Access
Smart Device

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 100 miles of Banning, California

Asking price$30,897Dealer asking price · 120,056 mi

Market median$40,917Median of 3 similar listings

vs. market Good price-24.5%Well below similar listings

Where this price sits

Among the lowest-priced · 100% of 3 similar listings ask more than this car.

Median $40,917

This car$30,897

$30,897lowest$65,000highest

Middle 50% of asking pricesMedianThis car

Price vs. median

−25%Median+25%

Well below similar listings$10,020 below the median of $40,917

Price range

$30,897$65,000

Lowest price of 4 similar listings within 100 milesTick marks the median · range of 3 similar listings

AutosXchange Insights

Compared with 3 used 2021 GMC Sierra 1500 AT4-family listings within 100 mi.
Priced $10,020 below the median of 3 similar listings within 100 miles of Banning, California.
Not adjusted for mileage (too few of these listings have mileage close to this car's).
Fewer than 3 other AT4 SB listings are live nationwide, so AT4-family trims are compared.
Lowest price of 4 similar listings within 100 miles.
Has about 59,000 more miles than similar listings.
About 20,009 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # JT56 — mention it when you call or text.

Price history

Price tracked by AutosXchange since Nov 6, 2026. No price change at this dealership since Nov 6 ($30,897).

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 8); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

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Tap a vehicle to open its full listing, dealer details, photos and asking price.

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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