Wireless phone projection for Apple CarPlay and Android Auto|Bluetooth for phone connectivity to vehicle infotainment system|Bose Premium Series with 12-speaker system with CenterPoint Richbass woofer and AudioPilot|Audio System, 13.4 diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance includes color touch-screen, 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|LPO, MultiPro Tailgate Audio System by Kicker|SiriusXM with 360L includes a trial subscription to the Platinum Plan. Experience more channels in the vehicle, a more personalized experience and easier navigation. (IMPORTANT: The SiriusXM trial package is not provided on vehicles that are ordered for Fleet Daily Rental (FDR) use. Trial subscription subject to the SiriusXM Customer Agreement and privacy policy, visit www.siriusxm.com which includes full terms and how to cancel. All fees, content, features, and availability are subject to change. Some features require GM connected vehicle services.)|SiriusXM enjoy a Platinum Plan trial subscription|Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)|Bed Step, Black integrated on forward portion of bed on driver and passenger side|Bumper, front, body-color lower|Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)|Glass, deep-tinted|Wheelhouse liners, rear|LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob|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|Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps|Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, (U12) perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31 [84.25mm]) lighting|Wheels, 18 (45.7 cm) machined aluminum wheel with High Gloss black accents|Lamps, Smoked Amber roof marker, (LED) (Not available with (YF5) California state emissions requirements.)|Assist steps, power retractable, Black includes LED lighting (Not available with any other assist steps.)|Sunroof, power|CornerStep, rear bumper (Not available with (ULV) AT4X AEV Edition.)|Wipers, front rain-sensing|Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door|Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light|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|Cargo tie downs (12), fixed, rated at 500 lbs per corner|Bumper, rear body-color with bumper CornerSteps|Tires, LT305/70R18-126/123R, 35 M/T|Fog lamps, LED|Moldings, beltline, Black|Tailgate and bed rail protection caps, top|Door handles, body-color (With (ULV) AT4X AEV Edition door handles will be Gloss black.)|Grille (Gloss Black header and grille insert bars with Dark Nickel inserts.)|Tire, spare, LT305/70R18-126/123R, 35 M/T|IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)|Wheel, Spare 18 (50.8 cm)|Bedliner, 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. Available with Ship Thru code (SQE), not available with any other Ship Thru code.)|Mirror caps, high gloss Black|Universal Home Remote|Rear Seat Reminder|Driver Information Center, enhanced, 12.3 diagonal reconfigurable multicolor digital display|Air conditioning, dual-zone automatic climate control|Multicolor 15 Diagonal Head-Up Display|Defogger, rear-window electric|USB ports, (2) charge-only, rear|Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)|Air vents, rear|Steering column, manual Tilt-Wheel and telescoping (Included and only available with (PCQ) SLE Convenience Package.|Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)|Seating, heated driver and front outboard passenger|GMC Premium information Display- 13.4 diagonal Multicolor touch screen|Seat adjuster, driver 16-way power including lumbar and massage|Compass, located in instrument cluster|Remote vehicle starter system|Windows, power front, drivers express up/down|Wireless Charging|Adaptive Cruise Control|Seats, heated second row outboard seats|Seats, front bucket with center console|Floor covering, color-keyed carpeting|Steering wheel, heated|Window, power front, passenger express up/down|Exterior Temperature Display, located in radio display|Theft-deterrent system, unauthorized entry|Seat adjuster, passenger 16-way power including lumbar and massage|Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability|USB Ports, 2, Charge/Data ports located inside center console|Driver memory recalls driver presets for power driver seat and outside mirrors|USB Ports, 2 (first row) located on console|Premium Floor Liners with removable carpet insert, rear|Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted|Seats, ventilated driver and front passenger|Keyless Open and Start includes remote keyless entry|Windows, power rear, express down|Premium Floor Liners with removable carpet insert, front|GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details.)|Steering wheel audio controls|Door locks, power|Seat trim, Full Grain Leather|Seat, Up-level Rear with Storage Package 60/40 folding bench, 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)|Steering wheel, leather-wrapped|Window, power, rear sliding with rear defogger|Rear Camera Mirror inside rearview auto-dimming with full camera display|Skid Plates, Transfer case, steel|Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors|Skid Plates, front aluminum|Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)|GVWR, 10,850 lbs. (4921 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18, 20 or 22 wheels.)|Cooling, auxiliary external transmission oil cooler|Suspension, Off-Road Includes, 40 mm front suspension kit composed of: Control Arms, Ball Joints, Knuckles, DSSV Dampers, 15 mm Rear Suspension Lift composed of spacer block and DSSV Dampers and Half shafts w/ revised joints, 3-stage Leaf springs from 3500|Trailer brake controller, integrated|Steering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue|Push Button Start|Hill Descent Control|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 when (PTT) trailer tire pressure monitor sensors are installed.)|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.)|Air filtration monitoring|Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)|Transfer case, two-speed active, electronic Autotrac with push button control|Four wheel drive|Air filter, heavy-duty|Transmission, Allison 10-Speed automatic|Differential, driver-selectable full-locking rear, e-locking|Brake lining wear indicator|Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section|Recovery hooks, Red (Deleted with (ULV) AT4X AEV Edition.)|Engine, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline, (401 hp [299 kW]

• 5200 rpm, 464 lb-ft of torque [629 N-m]