2021 GMC Sierra 3500HD AT4 Crew Cab 4WD Vehicle Options

• Gooseneck/5th Wheel Package
• Gooseneck/5th Wheel Prep Package
• Heavy Duty Front Spring/Camper Package
• Preferred Equipment Group 4SB
• X31 Off-Road Package
• 6 Speakers
• 6-Speaker Audio System Feature
• AM/FM radio: SiriusXM with 360L
• HD Radio
• Premium audio system: Premium GMC Infotainment System
• Radio: AM/FM w/Premium GMC Infotainment System
• SiriusXM w/360L
• Steering Wheel Audio Controls
• Air Conditioning
• Automatic temperature control
• Electric Rear-Window Defogger
• Front dual zone A/C
• Rear window defroster
• 12-Volt Rear Auxiliary Power Outlet
• 120-Volt Bed Mounted Power Outlet
• 120-Volt Instrument Panel Power Outlet
• Driver Memory
• Memory seat
• Power driver seat
• Power Front Passenger Windows w/Express Up/Down
• Power Front Windows w/Driver Express Up/Down
• Power Rear Windows w/Express Down
• Power steering
• Power windows
• Remote keyless entry
• Remote Vehicle Starter System
• Steering wheel mounted audio controls
• Manual Tilt-Wheel/Telescoping Steering Column
• Off-Road Suspension
• Speed-sensing steering
• Traction control
• 4-Wheel Disc Brakes
• ABS brakes
• Dual front impact airbags
• Dual front side impact airbags
• Electrical Lock Control Steering Column
• Front anti-roll bar
• Front wheel independent suspension
• Keyless Open & Start
• Low tire pressure warning
• Occupant sensing airbag
• Overhead airbag
• Power Door Locks
• Pickup Bed
• Red Recovery Hooks
• Brake assist
• Electronic Stability Control
• Hill Descent Control
• Delay-off headlights
• Front fog lights
• Fully automatic headlights
• Panic alarm
• Security system
• Unauthorized Entry Theft-Deterrent System
• Speed control
• 2-Speed Active Transfer Case
• 220 Amp Alternator
• Engine Block Heater
• Exhaust Brake
• Heavy-Duty 80 Amp Battery
• Auto-dimming door mirrors
• Bumpers: body-color
• Front License Plate Kit
• Heated door mirrors
• LED Cargo Area Lighting
• LED Smoked Amber Roof Marker Lamps
• Painted Blk Surround Grille w/High Gloss Blk Mesh
• Power door mirrors
• ProGrade Trailering System
• Rear step bumper
• Rear Wheelhouse Liners
• Spray-On Pickup Bed Liner w/AT4 Logo
• Turn signal indicator mirrors
• Winter Grille Cover
• 2 USB Ports (First Row)
• 2 USB Ports Inside Console
• 2nd Row Dual USB Charge-Only Ports
• 4.2'' Diagonal Color Display Driver Info Center
• 4G LTE Wi-Fi Hotspot Capable
• Apple CarPlay/Android Auto
• Auto-dimming Rear-View mirror
• Bed View Camera w/2 Trailer Camera Provisions
• Compass
• Compass Located In Instrument Cluster
• Driver door bin
• Driver vanity mirror
• Floor-Mounted Center Console
• Front reading lights
• GMC Connected Access Capable
• HD Rear Vision Camera
• Heated steering wheel
• Illuminated entry
• OnStar & GMC Connected Services Capable
• Outside temperature display
• Overhead console
• Passenger vanity mirror
• Prem Front Floor Liners w/Removable Carpet Insert
• Prem Rear Floor Liners w/Removable Carpet Insert
• Rear reading lights
• Rear seat center armrest
• Rear Underseat Storage (LPO)
• Tachometer
• Telescoping steering wheel
• Tilt steering wheel
• Trip computer
• Voltmeter
• Wireless Phone Projection
• 10-Way Power Driver Seat Adjuster w/Lumbar
• 10-Way Power Passenger Seat Adjuster w/Lumbar
• 2nd Row Heated Outboard Seats
• Front Bucket Seats
• Front Center Armrest
• Heated Driver & Front Outboard Passenger Seats
• Heated front seats
• Heated rear seats
• Perforated Leather-Appointed Front Seat Trim
• Power passenger seat
• Split folding rear seat
• Ventilated Driver & Front Passenger Seats
• Ventilated front seats
• Passenger door bin
• Hitch Guidance w/Hitch View
• In-Vehicle Trailering System App
• Integrated Trailer Brake Controller
• Trailer Tire Pressure Monitor Sensors
• 18'' Machined Aluminum Wheels
• 20'' Machined Aluminum Wheels
• Alloy wheels
• Deep-Tinted Glass
• Variably intermittent wipers
• 3.42 Rear Axle Ratio
• 3.73 Rear Axle Ratio