2021 GMC Sierra 2500HD AT4

USB ports, 2 (first row) located on instrument panel

Keyless Open and Start

Seating, heated driver and front outboard passenger

Remote vehicle starter system

Driver memory recalls driver "presets" for power driver seat and outside mirrors

Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability

Steering column, lock control, electrical

Radio, HD

Seat adjuster, passenger 10-way power including lumbar

Seats, ventilated driver and front passenger

Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)

Power outlet, rear auxiliary, 12-volt

Theft-deterrent system, unauthorized entry

Steering wheel, heated

Steering wheel, leather-wrapped

Seats, heated second row outboard seats

Air conditioning, dual-zone automatic climate control

Mirror, inside rearview auto-dimming

USB ports, dual, charge-only (2nd row)

Window, power front, passenger express up/down

Seat adjuster, driver 10-way power including lumbar

SiriusXM Radio

Rear Seat Reminder

USB Ports (Inside Console with bucket seats), 2 also includes 1 SD card reader and auxiliary jack

Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)

Windows, power rear, express down

Audio system feature, 6-speaker system

Bluetooth for phone, connectivity to vehicle infotainment system

Instrument cluster, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure

SiriusXM Radio 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.)

GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details)

Air vents, rear

Steering column, manual Tilt-Wheel and telescoping

Exterior Temperature Display, located in radio display

Compass, located in instrument cluster

Seat trim, Perforated leather-appointed front

Windows, power front, drivers express up/down

Cruise control, steering wheel-mounted

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 under-seat storage, (includes child seat top tether anchor)

Seats, front bucket with center console

Wireless Phone Projection for Apple Carplay and Android Auto

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.)

Premium Floor Liners with removable carpet insert, front

Premium Floor Liners with removable carpet insert, rear

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

Tailgate and bed rail protection caps, top

Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light

Tires, LT275/70R18E all-terrain, blackwall

Fog lamps, LED

Tailgate, GMC MultiPro Tailgate with six functional load/access features

Taillamps, LED signature taillight with LED stop and reverse light

Bumper, front, body-color lower

Mirror caps, high gloss Black

Grille (Painted Black surround with high gloss Black mesh and Black chrome inserts.)

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]) (Molded in color Black.)

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).)

Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel

Wheels, 18" (45.7 cm) machined aluminum wheel with Dark Grey metallic accents

Bumper, rear body-color with bumper CornerSteps

Bed Step, Black integrated on forward portion of bed on driver and passenger side

Cooling, external engine oil cooler

Air filtration monitoring

Steering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue

Hill Descent Control

Pickup bed includes bed assist step

Transmission, 6-speed automatic, heavy-duty

Rear axle, 3.73 ratio (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.)

GVWR, 10,850 lbs. (4921 kg) (Included and only available with TK20943 model and (L8T) 6.6L V8 gas engine with 18" or 20" wheels.)

Recovery hooks, Red

Skid Plates protect the oil pan, front axle and transfer case

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.)

Suspension, Off-Road includes twin-tube shocks

Transfer case, two-speed active, electronic Autotrac with push button control

Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)

Air filter, heavy-duty

Auto-locking rear differential

Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching

MULTI-COLOR 15" DIAGONAL HEAD-UP DISPLAY

LICENSE PLATE KIT FRONT

TRANSMISSION ALLISON 10-SPEED AUTOMATIC

SAFETY ALERT SEAT

JET BLACK WITH KALAHARI ACCENTS PERFORATED FRONT LEATHER SEAT TRIM

WHEELS 20" (50.8 CM) MACHINED ALUMINUM with high gloss Black accents

GVWR 11 550 LBS. (5239 KG)

FRONT AND REAR PARK ASSIST ULTRASONIC

HIGH IDLE SWITCH

DRIVER ALERT PACKAGE I includes (UD5) Front and Rear Park Assist (UKC) Lane Change Alert with Side Blind Zone Alert and (UFG) Rear Cross Traffic Alert (Includes Perimeter Lighting.

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).

WINTER GRILLE COVER

WINDOW POWER REAR SLIDING with rear defogger

UNIVERSAL HOME REMOTE

ENGINE BLOCK HEATER

UPFITTER SWITCH KIT (5) Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter at customer expense. Installation instructions and technical assistance available at www.gmupfitter.com.

AT4 PREFERRED PACKAGE includes (UVN) Bed View Camera (UVS) HD Surround Vision with Two Trailer View Camera Provisions (UG1) Universal Home Remote (A48) rear sliding power window (IOT) 8" diagonal Premium GMC Infotainment with navigation (UQA) Bose Premium Audio System (U01) Roof Marker Lamps and (K4C) Wireless Charging

SUNROOF POWER

SUMMIT WHITE

AUDIO SYSTEM PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 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 greater memory. Includes (PZ8) Hitch Guidance with hitch view.)

LPO AT4 HIGH CLEARANCE STEP (dealer-installed)

SEATS FRONT BUCKET with center console (STD)

AT4 PREFERRED EQUIPMENT GROUP includes standard equipment

REAR CAMERA MIRROR INSIDE REARVIEW AUTO-DIMMING WITH FULL CAMERA DISPLAY

TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multi-color 15" Diagonal Head-Up Display Includes (UHS) 8" Digital Driver information Center.

REAR AXLE 3.42 RATIO

REAR CROSS TRAFFIC ALERT

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.)

AUTOMATIC EMERGENCY BRAKING

HD SURROUND VISION WITH TWO TRAILER VIEW CAMERA PROVISIONS provides the driver with an overhead view of the scene around the vehicle on a center stack display

EXHAUST BRAKE

PICKUP BED includes bed assist step (STD)

DRIVER ALERT PACKAGE II includes (UEU) Forward Collision Alert (UFL) Lane Departure Warning (UHY) Automatic Emergency Braking (TQ5) IntelliBeam and (UE4) Following Distance Indicator Includes (HS1) Safety Alert Seat.

GOOSENECK / 5TH WHEEL PACKAGE includes (Z6A) Gooseneck / 5th Wheel Prep Package. (Includes (UVN) Bed View Camera.

AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package (PQB) Driver Alert Package I (PDJ) Driver Alert II (PYU) 20" (50.8 cm) machined aluminum wheels with high gloss Black accents (CF5) power sunroof (CWM) Technology Package and (VXW) AT4 high clearance step LPO

ALTERNATOR 220 AMPS

LANE DEPARTURE WARNING

TIRES LT275/65R20 ALL-TERRAIN BLACKWALL

FORWARD COLLISION ALERT

Tow Hitch

Running Boards/Side Steps

Locking/Limited Slip Differential

Four Wheel Drive

Tow Hooks

Power Steering

ABS

4-Wheel Disc Brakes

Aluminum Wheels

Tires - Front All-Terrain

Tires - Rear All-Terrain

Conventional Spare Tire

Bed Liner

Daytime Running Lights

Fog Lamps

Heated Mirrors

Power Mirror(s)

Integrated Turn Signal Mirrors

Power Folding Mirrors

Privacy Glass

AM/FM Stereo

MP3 Player

Bluetooth Connection

Auxiliary Audio Input

Smart Device Integration

HD Radio

Satellite Radio

Requires Subscription

Satellite Radio

Requires Subscription

Bluetooth Connection

Bluetooth Connection

Auxiliary Audio Input

Smart Device Integration

WiFi Hotspot

Bucket Seats

Leather Seats

Power Driver Seat

Driver Adjustable Lumbar

Power Passenger Seat

Passenger Adjustable Lumbar

Heated Front Seat(s)

Heated Front Seat(s)

Cooled Front Seat(s)

Mirror Memory

Seat Memory

Heated Rear Seat(s)

Pass-Through Rear Seat

Floor Mats

Floor Mats

Leather Steering Wheel

Heated Steering Wheel

Steering Wheel Audio Controls

Adjustable Steering Wheel

Power Windows

Power Windows

Power Windows

Power Door Locks

Keyless Entry

Power Door Locks

Keyless Start

Remote Engine Start

Cruise Control

Security System

MP3 Player

Auxiliary Audio Input

MP3 Player

Auxiliary Audio Input

Power Outlet

Power Outlet

Climate Control

Multi-Zone A/C

A/C

Rear Defrost

Auto-Dimming Rearview Mirror

Traction Control

Stability Control

Daytime Running Lights

Driver Air Bag

Passenger Air Bag

Front Side Air Bag

Front Head Air Bag

Rear Head Air Bag

Passenger Air Bag Sensor

Telematics

Requires Subscription

Back-Up Camera

Back-Up Camera

Driver Restriction Features

Tire Pressure Monitor