Vehicle Summary

Condition: Used
Certified: Yes
Mileage: 81,220
Engine: Turbocharged Diesel V8 6.6L/
Transmission: 10-Speed Automatic
Drivetrain: 4WD
Exterior Color: Pacific Blue Metallic
Interior Color: Jet Black with Kalahari accents
City MPG:
Highway MPG:

Vehicle Highlights

Vehicle Details

This 2021 GMC Sierra 3500HD AT4 is a serious work truck built for demanding tasks. Finished in blue with a Jet Black interior featuring Kalahari accents and perforated leather trim, this crew cab standard bed model delivers the performance and capability you need. Powered by a Duramax 6.6L V8 turbodiesel engine paired with a 10-speed automatic transmission and 4WD, it's engineered for heavy hauling and towing. - Gooseneck/5th wheel package with integrated trailer brake controller - Duramax 6.6L V8 turbodiesel with 220-amp alternator - 20" machined aluminum wheels - Trailer tire pressure monitor sensors with hitch guidance and camera system - Off-road suspension with 2-speed active transfer case - Heated and ventilated leather front seats with 10-way power adjustment - Apple CarPlay and Android Auto with premium GMC infotainment system - SiriusXM satellite radio with 4G LTE Wi-Fi hotspot - Hill descent control with electronic stability control - Bed-mounted 120-volt power outlet and rear view camera This truck carries 81,220 miles and is ready to put in serious work. Schedule your test drive today and experience the Sierra 3500HD AT4 firsthand.

Emissions, california state requirements
Gvwr, 12,100 lbs. (5488 kg) with single rear wheels
At4 preferred equipment group
Tires, lt275/65r20 all-terrain, blackwall
Seats, front bucket with center console
Audio system, premium gmc infotainment system with 8" diagonal color touch-screen
Engine block heater
Gooseneck / 5th wheel prep package
Winter grille cover
Bed view camera
Gooseneck/5th Wheel Package
Preferred Equipment Group 4SB
6 Speakers
AM/FM radio: SiriusXM with 360L
Premium audio system: Premium GMC Infotainment System
SiriusXM w/360L
Air Conditioning
Electric Rear-Window Defogger
Rear window defroster
120-Volt Bed Mounted Power Outlet
Driver Memory
Power driver seat
Power Front Windows w/Driver Express Up/Down
Power steering
Remote keyless entry
Steering wheel mounted audio controls
Off-Road Suspension
Traction control
ABS brakes
Dual front side impact airbags
Front anti-roll bar
Keyless Open & Start
Occupant sensing airbag
Power Door Locks
Red Recovery Hooks
Electronic Stability Control
Delay-off headlights
Fully automatic headlights
Security system
Speed control
220 Amp Alternator
Exhaust Brake
Auto-dimming door mirrors
Front License Plate Kit
LED Cargo Area Lighting
Power door mirrors
Rear step bumper
Spray-On Pickup Bed Liner w/AT4 Logo
Winter Grille Cover
2 USB Ports Inside Console
4.2" Diagonal Color Display Driver Info Center
Apple CarPlay/Android Auto
Bed View Camera w/2 Trailer Camera Provisions
Compass Located In Instrument Cluster
Driver vanity mirror
Front reading lights
HD Rear Vision Camera
Illuminated entry
Outside temperature display
Passenger vanity mirror
Prem Rear Floor Liners w/Removable Carpet Insert
Rear seat center armrest
Telescoping steering wheel
Trip computer
Wireless Phone Projection
10-Way Power Passenger Seat Adjuster w/Lumbar
Front Bucket Seats
Heated Driver & Front Outboard Passenger Seats
Heated rear seats
Power passenger seat
Ventilated Driver & Front Passenger Seats
Passenger door bin
In-Vehicle Trailering System App
Trailer Tire Pressure Monitor Sensors
20" Machined Aluminum Wheels
Deep-Tinted Glass
3.42 Rear Axle Ratio
GOOSENECK / 5TH WHEEL PREP PACKAGE -- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
AT4 PREFERRED EQUIPMENT GROUP includes standard equipment
LICENSE PLATE KIT FRONT
WINTER GRILLE COVER
TRANSMISSION ALLISON 10-SPEED AUTOMATIC
TIRES LT275/65R20 ALL-TERRAIN BLACKWALL
GOOSENECK / 5TH WHEEL PACKAGE includes (Z6A) Gooseneck / 5th Wheel Prep Package. (Includes (UVN) Bed View Camera.
TRAILER TIRE PRESSURE MONITOR SENSORS includes set of 4 sensors. Sensor functionality requires (U1D) In-vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories
ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (445 hp [332 kW] @ 2800 rpm 910 lb-ft of torque [1220 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
EXHAUST BRAKE
Tow Hitch
Locking/Limited Slip Differential
Tow Hooks
ABS
Aluminum Wheels
Tires - Rear All-Terrain
Bed Liner
Fog Lamps
Power Mirror(s)
Power Folding Mirrors
Integrated Tailgate Step
MP3 Capability
Auxiliary Audio Input
Satellite Radio
Satellite Radio
HD Radio
Bluetooth Connection
Bucket Seats
Leather Seats
Driver Adjustable Lumbar
Passenger Adjustable Lumbar
Rear Bench Seat
Heated Front Seat(s)
Heated Rear Seat(s)
Seat Memory
Floor Mats
Heated Steering Wheel
Steering Wheel Audio Controls
Power Windows
Remote Engine Start
Power Door Locks
Cruise Control
Power Outlet
Auxiliary Audio Input
Auxiliary Audio Input
Climate Control
Rear Defrost
Traction Control
Daytime Running Lights
Passenger Air Bag
Front Head Air Bag
Passenger Air Bag Sensor
Requires Subscription
Back-Up Camera
Tire Pressure Monitor

Transmission, allison 10-speed automatic
Rear axle, 3.42 ratio
Wheels, 20" (50.8 cm) machined aluminum
Pacific blue metallic
Jet black with kalahari accents, perforated front leather seating surfaces
Gooseneck / 5th wheel package
Alternator, 220 amps
Exhaust brake
License plate kit, front
Trailer tire pressure monitor sensors
Gooseneck/5th Wheel Prep Package
X31 Off-Road Package
6-Speaker Audio System Feature
HD Radio
Radio: AM/FM w/Premium GMC Infotainment System
Steering Wheel Audio Controls
Automatic temperature control
Front dual zone A/C
12-Volt Rear Auxiliary Power Outlet
120-Volt Instrument Panel Power Outlet
Memory seat
Power Front Passenger Windows w/Express Up/Down
Power Rear Windows w/Express Down
Power windows
Remote Vehicle Starter System
Manual Tilt-Wheel/Telescoping Steering Column
Speed-sensing steering
4-Wheel Disc Brakes
Dual front impact airbags
Electrical Lock Control Steering Column
Front wheel independent suspension
Low tire pressure warning
Overhead airbag
Pickup Bed
Brake assist
Hill Descent Control
Front fog lights
Panic alarm
Unauthorized Entry Theft-Deterrent System
2-Speed Active Transfer Case
Engine Block Heater
Heavy-Duty 80 Amp Battery
Bumpers: body-color
Heated door mirrors
Painted Blk Surround Grille w/High Gloss Blk Mesh
ProGrade Trailering System
Rear Wheelhouse Liners
Turn signal indicator mirrors
2 USB Ports (First Row)
2nd Row Dual USB Charge-Only Ports
4G LTE Wi-Fi Hotspot Capable
Auto-dimming Rear-View mirror
Compass
Driver door bin
Floor-Mounted Center Console
GMC Connected Access Capable
Heated steering wheel
OnStar & GMC Connected Services Capable
Overhead console
Prem Front Floor Liners w/Removable Carpet Insert
Rear reading lights
Tachometer
Tilt steering wheel
Voltmeter
10-Way Power Driver Seat Adjuster w/Lumbar
2nd Row Heated Outboard Seats
Front Center Armrest
Heated front seats
Perforated Leather-Appointed Front Seat Trim
Split folding rear seat
Ventilated front seats
Hitch Guidance w/Hitch View
Integrated Trailer Brake Controller
18" Machined Aluminum Wheels
Alloy wheels
Variably intermittent wipers
3.73 Rear Axle Ratio
REAR AXLE 3.42 RATIO
ENGINE BLOCK HEATER
JET BLACK WITH KALAHARI ACCENTS PERFORATED FRONT LEATHER SEATING SURFACES
ALTERNATOR 220 AMPS
AUDIO SYSTEM PREMIUM GMC INFOTAINMENT SYSTEM WITH 8" DIAGONAL COLOR TOUCH-SCREEN includes multi-touch display AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones advanced voice recognition in-vehicle apps personalized profiles for infotainment and vehicle settings (STD) (Includes (PZ8) Hitch Guidance with hitch view.)
BED VIEW CAMERA camera in the CHMSL to show a view of the cargo bed display located in entertainment screen includes Two Trailer Camera Provisions
SEATS FRONT BUCKET WITH CENTER CONSOLE (STD)
GVWR 12 100 LBS. (5488 KG) WITH SINGLE REAR WHEELS
WHEELS 20" (50.8 CM) MACHINED ALUMINUM with high gloss Black accents
PACIFIC BLUE METALLIC
Running Boards/Side Steps
Four Wheel Drive
Power Steering
4-Wheel Disc Brakes
Tires - Front All-Terrain
Conventional Spare Tire
Daytime Running Lights
Heated Mirrors
Integrated Turn Signal Mirrors
Privacy Glass
AM/FM Stereo
Bluetooth Connection
Smart Device Integration
Requires Subscription
Requires Subscription
Bluetooth Connection
Smart Device Integration
WiFi Hotspot
Power Driver Seat
Power Passenger Seat
Pass-Through Rear Seat
Heated Front Seat(s)
Cooled Front Seat(s)
Mirror Memory
Floor Mats
Leather Steering Wheel
Adjustable Steering Wheel
Power Windows
Power Door Locks
Keyless Entry
Keyless Start
Security System
MP3 Capability
MP3 Capability
Power Outlet
Multi-Zone A/C
Auto-Dimming Rearview Mirror
Stability Control
Driver Air Bag
Front Side Air Bag
Rear Head Air Bag
Telematics
Back-Up Camera
Driver Restriction Features

4G LTE Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
Air vents, rear
Audio system feature, 6-speaker system
Bluetooth for phone connectivity to vehicle infotainment system
Compass, located in instrument cluster
Defogger, rear-window electric
Driver Information Center, 4.2" diagonal color display includes driver personalization
Exterior Temperature Display located in radio display
GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details.)
In-vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module (Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed.)
Keyless Open and Start
Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
Premium Floor Liners with removable carpet insert, front
Remote vehicle starter system
Seat adjuster, passenger 10-way power including lumbar
Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width underseat storage, (includes child seat top tether anchor)
Seats, front bucket with center console
Seats, ventilated driver and front passenger
SiriusXM with 360L Equipped with SiriusXM with 360L. Enjoy a trial subscription of the All Access package for the full 360L experience, with a greater variety of SiriusXM content, a more personalized experience and easier navigation. With the All Access package, you can also enjoy your favorites everywhere you go, with the SiriusXM app, online and at home on compatible connected devices. (IMPORTANT: The SiriusXM radio trial package is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. If you decide to continue service after your trial, the subscription plan you choose will automatically renew thereafter and you will be charged according to your chosen payment method at then-current rates. Fees and taxes apply. See the SiriusXM Customer Agreement at www.siriusxm.com for complete terms and how to cancel. All fees, content, features, and availability are subject to change. GM connected vehicle services vary by vehicle model and require active service plan, working electrical system, cell reception and GPS signal. See onstar.com for details and limitations.)
Steering column, manual Tilt-Wheel and telescoping
Steering wheel, heated
Theft-deterrent system, unauthorized entry
USB ports, 2 (first row) located on instrument panel
Window, power front, drivers express up/down
Windows, power rear, express down

Air conditioning, dual-zone automatic climate control
Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
Audio system, Premium GMC Infotainment System with 8" diagonal color touch-screen includes multi-touch display, AM/FM stereo, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings (Includes (PZ8) Hitch Guidance with hitch view.)
Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
Cruise control, steering wheel-mounted
Door locks, power
Driver memory, recalls driver "presets" for power driver seat and outside mirrors
Floor covering, color-keyed carpeting
HD Radio
Instrument cluster, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
Mirror, inside rearview auto-dimming
Power outlet, front auxiliary, 12-volt
Power outlet, rear auxiliary, 12-volt
Premium Floor Liners with removable carpet insert, rear
Seat adjuster, driver 10-way power including lumbar
Seat trim, Perforated Front Leather seating surfaces
Seating, heated driver and front outboard passenger
Seats, heated second row outboard seats
SiriusXM Radio
Steering column, lock control, electrical
Steering wheel audio controls
Steering wheel, leather-wrapped
USB Ports (Inside Console with bucket seats), 2 also includes 1 SD card reader and auxiliary jack
USB ports, dual, charge-only (2nd row)
Window, power front, passenger express up/down
Wireless phone projection for Apple CarPlay and Android Auto

Air filter, heavy-duty
Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
Cooling, auxiliary external transmission oil cooler
Four wheel drive
GVWR, 11,350 lbs. (5148 kg) with single rear wheels (Included and only available with TK30743 model and (L8T) 6.6L V8 gas engine. Requires single rear wheels.)
Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
Skid Plates protect the oil pan, front axle and transfer case
Suspension, Off-Road includes twin-tube shocks
Transfer case, two-speed active electronic Autotrac with push button control

Air filtration monitoring
Auto-locking rear differential
Brake lining wear indicator
Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
Cooling, external engine oil cooler
Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
Pickup bed includes bed assist step
Recovery hooks, Red
Steering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
Trailer brake controller, integrated
Transmission, 6-speed automatic, heavy-duty

Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
HD Rear Vision Camera
Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
OnStar and GMC connected services capable (Terms and limitations apply. See onstar.com or dealer for details.)
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
Tire Pressure Monitoring System with Tire Fill Alert (does not apply to spare tire)

Daytime Running Lamps LED signature lighting
Hill Descent Control
Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
Rear Seat Reminder
Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver

Bed Liner, Spray-on Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (AT4 logo replaces GMC logo. Not available with any Ship Thrus EXCEPT (VSH), (VTV), (TCH) or (TCE).)
Bumper, front, body-color lower
Cargo tie downs (12), fixed, rated at 500 lbs per corner
Door handles, body-color
Glass, deep-tinted
Headlamps, LED reflector (high intensity) with LED turn signals and LED signature Daytime Running Lamps
LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger) lower convex mirrors, turn signal indicators, puddle lamps, perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm])
Single Rear Wheels
Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
Taillamps, LED signature taillight with LED stop and reverse light
Tire, spare LT275/70R18 all-terrain, blackwall
Wheelhouse liners, rear

Bed Step, Black integrated on forward portion of bed on driver and passenger side
Bumper, rear body-color with bumper CornerSteps
CornerStep, rear bumper
Fog lamps, LED
Grille, Painted Black surround with high gloss Black mesh and Black chrome inserts
Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
Mirror caps, high gloss Black
Moldings, beltline, Black
Tailgate and bed rail protection caps, top
Tailgate, GMC MultiPro Tailgate with six functional load/access features
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
Tires, LT275/70R18E all-terrain, blackwall
Wheels, 18" (45.7 cm) machined aluminum wheel with Dark Grey metallic accents