2021 GMC SIERRA 3500HD SLT

• StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
• 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.)
• Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching (Deleted with (ZW9) pickup bed delete.)
• Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt (Deleted with (ZW9) pickup bed delete.)
• 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

PACKAGE (1)

• ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (U1D) In-vehicle Trailering App

MECHANICAL (19)

• Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
• GVWR, 11,350 lbs. (5148 kg) with single rear wheels (Included and only available with TK30743 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 (Requires 4WD models.)
• 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, 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, 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. Not included with (ZW9) pickup bed delete.)

EXTERIOR (22)

• Tire, spare LT275/70R18 all-terrain, blackwall (Included and only available with (QF6) LT275/70R18E all-terrain, blackwall tires or (QF9) LT275/65R20 all-terrain, blackwall tires with (E63) pickup bed models. Available to order when (ZW9) pickup bed delete and (QF6) LT275/70R18E all-terrain, blackwall tires are ordered.)
• Single Rear Wheels
• 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
• CornerStep, rear bumper
• Bed Step, Black integrated on forward portion of bed on driver and passenger side (Not available with (ZW9) pickup bed delete.)
• Moldings, beltline, stainless steel
• Wheelhouse liners, rear (Not available with dual rear wheel models.)
• Cargo tie downs (12), fixed, rated at 500 lbs per corner
• Grille, Chrome surround with high gloss Black mesh and Chrome inserts
• Fog lamps, LED
• Taillamps, LED signature taillight with LED stop and reverse light
• 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, chrome
• Glass, deep-tinted
• Door handles, chrome
• Tailgate, GMC MultiPro Tailgate with six functional load/access features (Deleted with (ZW9) pickup bed delete.)
• Tailgate and bed rail protection caps, top (Deleted with (ZW9) pickup bed delete.)
• Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light (Deleted with (ZW9) pickup bed delete.)

ENTERTAINMENT (2)

• HD Radio
• Audio system feature, 6-speaker system

INTERIOR (28)

• 4G LTE Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
• 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)
• Driver memory, recalls driver "presets" for power driver seat and outside mirrors
• Floor covering, color-keyed carpeting
• Steering wheel, leather-wrapped
• Steering wheel, heated
• Steering column, manual Tilt-Wheel and telescoping
• Steering wheel audio controls
• Instrument cluster, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
• Driver Information Center, 4.2" diagonal color display includes driver personalization
• 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 ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed. With (ZW9) pickup bed delete no provision for a trailer tire pressure monitor system will exist but all the other (U1D) features will remain.)
• Exterior Temperature Display located in radio display
• Compass, located in instrument cluster
• Window, power front, drivers express up/down
• Remote vehicle starter system
• Cruise control, steering wheel-mounted
• Theft-deterrent system, unauthorized entry
• Steering column, lock control, electrical
• Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
• USB ports, dual, charge-only (2nd row)
• Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet) (Deleted with (ZW9) pickup bed delete.)
• Air conditioning, dual-zone automatic climate control
• Air vents, rear
• Mirror, inside rearview auto-dimming
• Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
• GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details.)

Preferred Equipment Group 4SA	18 Machined Aluminum Wheels
20 Machined Aluminum Wheels	Front 40/20/40 Split-Bench Seat w/Storage
Front Bucket Seats	Perf Leather-Appointed Front Outboard Seat Trim
10-Way Power Driver Seat Adjuster w/Lumbar	SLT Convenience Package
SLT Preferred Package	SLT Premium Package
Driver Alert Package I	Radio: AM/FM w/Premium GMC Infotainment System
Radio: AM/FM w/Prem GMC Infotainment System & Navi	Electric Rear-Window Defogger
Bed View Camera w/2 Trailer Camera Provisions	OnStar & GMC Connected Services Capable
120-Volt Instrument Panel Power Outlet	All-Weather Floor Liners (LPO)
Spray-On Pickup Bed Liner w/GMC Logo	X31 Off-Road & Protection Package
6 Rectangular Chromed Tubular Assist Steps	Deep-Tinted Glass
Front License Plate Kit	LED Smoked Amber Roof Marker Lamps
LED Cargo Area Lighting	Pickup Bed
X31 Off-Road Package	Integrated Trailer Brake Controller
Gooseneck/5th Wheel Package	Gooseneck/5th Wheel Prep Package
220 Amp Alternator	Engine Block Heater
Skid Plates	Suspension Package
Off-Road Suspension	2-Speed Active Transfer Case
SiriusXM w/360L	Driver Memory
Power Sliding Rear Window w/Defogger	10-Way Power Passenger Seat Adjuster w/Lumbar
GMC Connected Access Capable	Power Front Passenger Windows w/Express Up/Down
Power Rear Windows w/Express Down	Keyless Open & Start
Power Door Locks	Power Front Windows w/Driver Express Up/Down
Rear Wheelhouse Liners	Winter Grille Cover
Remote Vehicle Starter System	Compass Located In Instrument Cluster
Floor-Mounted Center Console	Chrome Surround Grille w/High Gloss Black Mesh
Hill Descent Control	Exhaust Brake
Wireless Charging	Heated Driver & Front Outboard Passenger Seats
2nd Row Heated Outboard Seats	120-Volt Bed Mounted Power Outlet
12-Volt Rear Auxiliary Power Outlet	ProGrade Trailering System
Ventilated Driver & Front Passenger Seats	Heavy-Duty 80 Amp Battery
In-Vehicle Trailering System App	2 USB Ports (First Row)
Electrical Lock Control Steering Column	Manual Tilt-Wheel/Telescoping Steering Column
Perimeter Lighting	Hitch Guidance w/Hitch View
HD Radio	Ultrasonic Front & Rear Park Assist
4.2 Diagonal Color Display Driver Info Center	Rear Cross Traffic Alert
Universal Home Remote	Steering Wheel Audio Controls
Lane Change Alert w/Side Blind Zone Alert	Bose Premium 7 Speaker Sound System
6-Speaker Audio System Feature	2nd Row Dual USB Charge-Only Ports
Unauthorized Entry Theft-Deterrent System	HD Surround Vision w/2 Trailer View Camera Provisions
4G LTE Wi-Fi Hotspot Capable	Wireless Phone Projection
4-Wheel Disc Brakes	Apple CarPlay/Android Auto
Premium audio system: Premium GMC Infotainment System	AM/FM radio: SiriusXM with 360L
Front Center Armrest w/Storage	Compass
Auto-dimming Rear-View mirror	Front beverage holders
Variably intermittent wipers	Turn signal indicator mirrors
Trip computer	Traction control
Tilt steering wheel	Telescoping steering wheel
Steering wheel mounted audio controls	Split folding rear seat
Speed-sensing steering	Speed control
Security system	Remote keyless entry
Rear window defroster	Rear step bumper
Rear seat center armrest	Rear reading lights
Power windows	Power steering
Power passenger seat	Power driver seat
Power door mirrors	Passenger vanity mirror
Passenger door bin	Panic alarm
Overhead console	Overhead airbag
Outside temperature display	Occupant sensing airbag
Memory seat	Low tire pressure warning
Illuminated entry	Heated steering wheel
Heated front seats	Heated door mirrors
Fully automatic headlights	Front wheel independent suspension
Front reading lights	Front fog lights
Front dual zone A/C	Front anti-roll bar
Dual front side impact airbags	Dual front impact airbags
Driver vanity mirror	Driver door bin
Delay-off headlights	Bumpers: chrome
Brake assist	Automatic temperature control
Auto-dimming door mirrors	ABS brakes
Voltmeter	Tachometer
Electronic Stability Control	Air Conditioning
6 Speakers	Aluminum Wheels