Used 2026 GMC Sierra 3500HD Denali Ultimate

Vehicle Features

• Interior

  • 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, leather-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
  • Universal Home Remote
  • 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

• Exterior

  • Single Rear Wheels
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • Sunroof, power
  • 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
  • Assist steps, power-retractable with LED perimeter lighting and bright accent (Not available with any other assist steps.)
  • Moldings, beltline, stainless steel
  • Wheelhouse liners, rear (Not available with dual rear wheel models.)
  • Bedliner, 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), (TCE) or (TCH), not available with any other Ship Thru code.)
  • Cargo tie downs (12), fixed, rated at 500 lbs per corner
  • Grille, Signature Denali Ultimate grille in Vader chrome with High Gloss Black surround
  • Winter Grille Cover
  • 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
  • Lamps, Smoked Amber roof marker, (LED) (Standard with dual rear wheels. Not available with (YF5) California state emissions requirements on single rear wheels.)
  • 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, chrome
  • Wipers, front rain-sensing
  • Glass, deep-tinted
  • Door handles, chrome
  • Tailgate, GMC MultiPro Tailgate with six functional load/access features. NOTE: Auto release can be disabled if ball hitch is installed. See Owners manual for details

• Mechanical

  • Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel compatible (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm)
  • Rear axle, 3.42 ratio
  • Pickup bed
  • GVWR, 12,250 lbs. (5557 kg) with single rear wheels (Included and only available with TK30943 model and (L5P) Duramax 6.6L Turbo-Diesel V8 engine. Requires single rear wheels.)
  • Engine block heater
  • 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 730 cold-cranking amps/70 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L5P) Duramax 6.6L Turbo-Diesel V8 engine.)
  • Alternator, 220 amps
  • Trailer brake controller, integrated
  • Recovery hooks, front, Chrome (Plant installed.)
  • 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 (Not available with dual rear wheels.)
  • 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
  • Exhaust Brake
  • Brake lining wear indicator
  • Capped Fuel Fill

• Safety

  • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
  • Hill Descent Control (Not available with dual rear wheels.)
  • 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 Owners 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)