2025 GMC SIERRA 3500HD AT4

• StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
• Hill Descent Control
• 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.)
• Front and Rear Park Assist, ultrasonic
• Bed View Camera camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen, includes Two Trailer Camera Provisions
• Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
• Trailer Camera Provisions and trailer viewing software
• Rear Cross Traffic Alert
• Trailer Side Blind Zone Alert
• Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
• Safety Alert Seat
• 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
• Seat Belt Adjustable Guide Loops, front row only
• Indicator-Seat Belt WARNING, Rear Seat (Requires Crew Cab or Double Cab model.)
• Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety)

PACKAGE (2)

• X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks
• ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App

MECHANICAL (20)

• Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
• GVWR, 11,700 lbs. (5307 kg) with single rear wheels (Included and only available with model TK30943 model and (L8T) 6.6L V8 gas engine. Requires single rear wheels.)
• Air filter, heavy-duty
• Air filtration monitoring
• Transfer case, two-speed active electronic Autotrac with push button control
• Auto-locking rear differential
• Four wheel drive
• Cooling, external engine oil cooler
• Cooling, auxiliary external transmission oil cooler
• 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.)
• Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
• Trailer brake controller, integrated
• Recovery hooks, Red
• Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
• Skid Plates protect the oil pan, front axle and transfer case
• Suspension, Off-Road includes twin-tube shocks
• Steering, Digital Variable Steering Assist This system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
• Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
• Brake lining wear indicator
• Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)

EXTERIOR (24)

• Tire, spare LT275/70R18 all-terrain, blackwall
• Single Rear Wheels
• Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
• Bumper, front, body-color lower
• Bumper, rear body-color with bumper CornerSteps
• CornerStep, rear bumper
• Bed Step, Black integrated on forward portion of bed on driver and passenger side
• Moldings, beltline, Black
• Wheelhouse liners, rear
• Bed Liner, Spray-on Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Available with Ship Thru code (SQE) or (TCH), not available with any other Ship Thru code.)
• Cargo tie downs (12), fixed, rated at 500 lbs per corner
• Grille, Gloss Black header and grille insert bars with Black chrome accents
• Fog lamps, LED
• Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
• Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
• 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])
• Mirror caps, high gloss Black
• Wipers, front rain-sensing
• Glass, deep-tinted
• Door handles, body-color
• Tailgate, GMC MultiPro Tailgate with six functional load/access features. NOTE: Auto release can be disabled if ball hitch is installed. See Owner's manual for details
• Tailgate and bed rail protection caps, top
• Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light

ENTERTAINMENT (1)

• Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)

INTERIOR (26)

• Seat adjuster, driver 10-way power including lumbar
• 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, heated second row outboard seats
• 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
• Floor covering, color-keyed carpeting
• Steering wheel, wrapped
• Steering wheel, heated
• Steering column, manual Tilt-Wheel and telescoping
• Steering wheel audio controls
• Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display
• GMC Premium information Display- 13.4" diagonal Multicolor touch screen
• Exterior Temperature Display located in radio display
• Compass, located in instrument cluster
• Window, power front, drivers express up/down
• Remote vehicle starter system
• Adaptive Cruise Control
• Theft-deterrent system, unauthorized entry
• Wireless Charging
• Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
• USB ports, (2) charge-only, rear
• Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
• Air conditioning, dual-zone automatic climate control
• Air vents, rear
• Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted

Preferred Equipment Group 4SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Camera Provisions; Electric Rear-Window Defogger; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Premium Front Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Premium Rear Floor Liners with Removable Carpet Insert; 2 Charge-Only Rear USB Ports; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Windows with Passenger Express Up/down; Bose Premium 7-Speaker Sound System; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Gloss Black Header and Grille Insert Bars; Rear Wheelhouse Liners	Technology Package: Multicolor 15" Diagonal Head-Up Display; Auto-Dimming Inside Rearview Mirror with Camera
AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote	Thunderstorm Gray
LT275/65R20E 126/123 Off-Road T/A KO3 Tires	Black Front and Rear Molded Splash Guards
LED Smoked Amber Roof Marker Lamps	Forward collision mitigation with pedestrian impact prevention
Pedestrian impact prevention	Mobile hotspot internet access
Rear mounted camera	Adaptive cruise control
Head-up display	Automatic Emergency Braking predictive brake assist system
Cruise control with steering wheel mounted controls	Ventilated driver and front passenger seats
Keyfob remote start	Heated steering wheel
Heated driver and front passenger seats	Heated rear seats
Leather front seat upholstery	Primary monitor touchscreen
Lane departure warning	Rear collision warning
Driver seat power reclining	lumbar support
cushion tilt	fore/aft control and height adjustable control
AutoTrac part and full-time 4WD	Duramax 6.6L V-8 diesel direct injection
intercooled turbo	diesel
engine with 470HP	Duramax 6.6L V-8
Front wireless smart device charging	Built-in virtual assistant
Teen Driver restricted driving mode/alerts	Keyless Open/Keyless Start with hands-free access and push button start
Keyfob window control	Aerial view camera
Smart device remote start	Push-button
Weight capacity alert	Video-feed rearview mirror
Wireless audio streaming	Hitch Guidance with Hitch View vehicle to trailer hitching assist
Gauge cluster display size: 12.30	Front mounted camera with washer
Right side camera	Pickup box camera
Left side camera	Blind spot warning
Following distance alert	GMC ProGrade Trailering System trailer tire pressure sensors
Trailer light test	Trailer light malfunction warning
Trailer theft alarm	Dual-zone front climate control
Full gauge cluster screen	Auto high-beam headlights
Immobilizer	Bose speakers
Handsfree wireless device connectivity