Audio system feature, 6-speaker system (Requires Crew Cab model.)|Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)|Wireless phone projection for Apple CarPlay and Android Auto|SiriusXM enjoy a Platinum Plan trial subscription (Requires (UE1) OnStar. IMPORTANT: The SiriusXM trial package is not provided on vehicles that are ordered for Fleet Daily Rental (FDR) use. Trial subscription is 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.)|Bluetooth for phone, connectivity to vehicle infotainment system|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 wired Android Auto and Apple CarPlay capability for compatible phones|Wheel trim, painted center caps|Bumper, rear, delete|Lamps, cargo area, cab mounted integrated with center high mount stop lamp with switch in bank on left side of steering wheel|IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)|Wheels, 17 (43.2 cm) painted steel|Glass, solar absorbing, tinted|Moldings, beltline, Black|Bumper, front chrome lower|Spare tire delete Deletes the spare tire and wheel.|Lamps, Smoked Amber roof marker, (LED)|Headlamps Animated LED projectors, LED turn signals and Daytime Running Lamps|Door handles, Black grained|Tires, LT235/80R17E all-terrain, blackwall|Mirrors, outside high-visibility vertical trailering lower convex mirrors, manual-folding/extending (extends 3.31 [84.25mm]), molded in Black (Not included on Regular Cab models.)|Grille (Chrome with flat black grille insert bars.)|Seats, front 40/20/40 split-bench with covered armrest storage and under-seat storage (lockable)|Instrument cluster 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure|Exterior Temperature Display, located in radio display|Back-up alarm calibration This calibration will allow installation of an aftermarket back-up alarm by disabling rear perimeter lighting|Driver Information Center, 3.5 diagonal monochromatic display|Mirror, inside rearview, manual tilt|Vinyl seat trim|Steering wheel, urethane|Floor covering, rubberized-vinyl (Not available with LPO floor liners.)|Seat adjuster, driver 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.)|Air conditioning, single-zone|Door locks, power|GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details.)|Remote Keyless Entry|USB ports, 2, Charge/Data ports located on instrument panel|Air vents, rear (Not available with Regular Cab model.)|Power outlet, front auxiliary, 12-volt|Seat adjuster, passenger 4-way manual|Windows, power front, drivers express up/down|Windows, power rear, express down|Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted|Compass, located in instrument cluster|Window, power front, passenger express down|Steering, Recirculating Ball with smart flow power steering system|Auto-locking rear differential|Air filter, heavy-duty|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]