Sierra HD Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UFL) Lane Departure Warning, (T8Z) Buckle to Drive and (UHY) Automatic Emergency Braking

Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance (Deleted when (ZW9) pickup bed delete is ordered.)

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] @ 4000 rpm)

Transmission, Allison 10-Speed automatic

Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)

Pickup bed includes bed assist step

GVWR, 10,350 lbs. (4695 kg) (Included and only available with TC20903 model and (L8T) 6.6L V8 gas engine with 18" or 20" wheels or TK20753 and (L8T) 6.6L V8 gas engine with 17" wheels.)

Push Button Start

Transfer case, two-speed, electronic shift with push button controls (Requires 4WD models.)

Auto-locking rear differential

Four wheel drive

Cooling, external engine oil cooler

Cooling, auxiliary external transmission oil cooler

Air filter, heavy-duty

Air filtration monitoring

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, front, frame-mounted, Black

Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section

Suspension Package (Not available with (X31) Off-Road Package.)

Steering, Recirculating Ball with smart flow power steering system

Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors

Brake lining wear indicator

Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine. Not included with (ZW9) pickup bed delete.)

Wheels, 17" (43.2 cm) painted steel, Silver

Tires, LT245/75R17E all-season, blackwall

Tire, spare LT245/75R17E all-season, blackwall (Included and only available with (QHQ) LT245/75R17E all-season, blackwall tires with (E63) pickup bed models. Available to order when (ZW9) pickup bed delete and (QHQ) LT245/75R17E all-season, blackwall tires are ordered.)

Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door (Deleted with (ZW9) pickup bed delete.)

Bumper, front chrome lower

Bumper, rear chrome with bumper CornerSteps

Bed Step, Black integrated on forward portion of bed on driver and passenger side (Not available on (ZW9) pickup bed delete.)

CornerStep, rear bumper

Cargo tie downs (12), fixed, rated at 500 lbs per corner

Moldings, beltline, Black

Grille (Chrome with flat black grille insert bars.)

Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps

IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)

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

Taillamps, LED Signature Tail, Incandescent Brake, Turn & Reverse Lamps

Mirrors, outside high-visibility vertical trailering lower convex mirrors, manual-folding/extending (extends 3.31" [84.25mm]), molded in Black (Not available on Regular Cab models.)

Glass, solar absorbing, tinted

Door handles, Black grained

Tailgate, standard (Deleted with (ZW9) pickup bed delete.)

Tailgate, locking, utilizes same key as ignition and door (Included and only available with (QK1) standard tailgate. Deleted with (ZW9) pickup bed delete.)

Tailgate, gate function manual, no lift assist (Deleted with (ZW9) pickup bed delete.)

Tailgate and bed rail protection caps, top (Deleted with (ZW9) pickup bed delete.)

Audio system, GMC Infotainment System with 7" diagonal color touch-screen AM/FM stereo with seek-and-scan and digital clock, includes Bluetooth streaming audio for music and select phones; featuring wireless Apple CarPlay and Android Auto capable

Audio system feature, 6-speaker system (Requires Crew Cab or Double Cab model.)

Bluetooth for phone connectivity to vehicle infotainment system

Wireless phone projection for Apple CarPlay and Android Auto

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

Seats, front 40/20/40 split-bench with covered armrest storage and under-seat storage (lockable)

Seat trim, Vinyl

Seat adjuster, driver 4-way manual

Seat adjuster, passenger 4-way manual

Seat, rear 60/40 folding bench (folds up), 3-passenger (includes child seat top tether anchor) (Not available with Regular Cab model.)

Floor covering, rubberized-vinyl (Not available with LPO floor liners.)

Steering wheel, urethane

Steering column, Tilt-Wheel, manual with wheel locking security feature

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

Driver Information Center, 3.5" diagonal monochromatic display

Rear Seat Reminder (Requires Crew Cab or Double Cab model.)

Exterior Temperature Display, located in radio display

Compass, located in instrument cluster

Windows, power front, drivers express up/down

Window, power front, passenger express down

Windows, power rear, express down (Not available on Regular Cab models.)

Door locks, power

Remote Keyless Entry

Cruise control, steering wheel-mounted

USB Ports, 2, Charge/Data ports located on instrument panel

Power outlet, front auxiliary, 12-volt

Air conditioning, single-zone

Air vents, rear (Not available with Regular Cab model.)

Mirror, inside rearview, manual tilt

Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted

Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)

Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)

StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist

Daytime Running Lamps, LED signature lighting

LED Signature DRL's

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.)

OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)

HD Rear Vision Camera (Not available with (ZW9) pickup bed delete. Removed with (UV2) HD Surround Vision or (ZW9) pickup bed delete. Not available with (Z6A) Gooseneck / 5th Wheel Prep Package.)

Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching (Deleted with (ZW9) pickup bed delete.)

Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)

Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)

Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)

Rear Seat Belt Indicator (Requires Crew Cab or Double Cab model.)

Seat Belt Adjustable Guide Loops, front row only (Included and only available on Crew Cab and Double Cab models. Not available with (ZW9) pickup bed delete.)

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.)

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

Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)

Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering (Not available on (ZW9) pickup bed delete.)

OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including select remote commands, built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (OnStar Basics includes select remote commands, Navigation, Voice Assistance, and Automatic Crash Response, for eligible vehicles with compatible software. For MY25 vehicles, OnStar Basics is standard for 8 years; OnStar plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. See onstar.com for details and limitations.)