2026 GMC Sierra 3500 HD SLT

Complete vehicle specifications

Vehicle description

Features & options (152)

• Basic
• Corrosion
• Maintenance
• Roadside Assistance
• Max seating capacity
• Fuel System
• Fuel tank capacity
• Horsepower
• Towing capacity
• 13.4" diagonal GMC Premium Infotainment System with Google built-in
• Bluetooth
• Bose Premium Sound System
• SiriusXM with 360L Trial Subscription
• Wi-Fi Hotspot capable
• Wireless phone projection
• 18" LT275/70R18 all-terrain, blackwall spare tire
• 18" LT275/70R18E all-terrain, blackwall tires
• 18" machined aluminum wheels with Dark Grey metallic accents
• 6" Chrome assist steps
• Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
• Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
• Cargo bed LED lighting
• Cargo tie-downs
• Chrome door handles
• Chrome front bumper
• Chrome mirror caps
• Chrome rear bumper
• CornerStep rear bumper
• Deep-tinted glass
• IntelliBeam
• LED fog lamps
• Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
• Rainsense automatic wipers
• Rear wheelhouse liners
• Side Bed Step
• Smoked Amber LED roof marker lamps
• Spare tire carrier lock
• Stainless-steel beltline moldings
• Standard tailgate
• Tailgate and bed rail protection caps
• Tailgate with EZ Lift assist, power lock & release
• Winter Grille Cover
• 10-way power driver seat with power lumbar
• 10-way power front passenger seat
• 12.3" diagonal color Driver Information Center
• 120-volt box-mounted power outlet
• 120-volt power outlet
• All-weather floor liners
• Assist handles
• Carpeted floor covering
• Compass
• Cruise control
• Driver memory
• Dual-zone automatic climate control
• Front bucket seats
• Front carpeted floor mats
• Front center console
• Heated driver and front outboard passenger seats
• Heated steering wheel
• In-Vehicle Trailering App
• Inside rearview auto-dimming mirror
• Keyless Open and Start
• Manual tilt and telescoping steering column
• Outside temperature display
• Power door locks
• Power windows with driver and front passenger express-up/down
• Power windows with driver express-up/down
• Power windows with rear express-down
• Rear air vents
• Rear carpeted floor mats
• Rear window defogger
• Remote Start
• Steering-wheel mounted controls
• Theft-deterrent unauthorized entry system
• USB ports
• Up-level rear seat with storage package
• Ventilated driver and front passenger seats
• Wireless Charging
• Wrapped steering wheel
• 10-speed automatic transmission
• 12,100 lbs. GVWR
• 220-amp alternator
• 3.42 rear axle ratio
• 4-wheel antilock disc brakes
• 6.6L Duramax Turbo-Diesel V8 engine
• Air filtration monitoring
• Automatic locking rear differential
• Autotrac 2-speed transfer case with push button controls
• Brake pad wear indicator
• Capped fuel fill
• Diesel exhaust brake
• Digital Variable Steering Assist
• Engine block heater
• External auxiliary transmission oil cooler
• External engine oil cooler
• Fully boxed frame
• Heavy-Duty Air Filter
• Heavy-duty 730 cold-cranking amps battery
• Integrated trailer brake controller
• Pickup bed
• Push Button Start
• Suspension Package
• Trailering Information Label
• LED Daytime Running Lamps
• Signature LED Daytime Running Lamps
• 6 airbags
• Buckle to Drive
• Following Distance Indicator
• Forward Collision Alert
• Front Pedestrian Braking
• HD Rear Vision Camera
• Hitch Guidance
• Hitch View
• Lane Departure Warning
• OnStar Basics
• OnStar services capable
• Rear Seat Belt Indicator
• Rear Seat Reminder
• Seat Belt Adjustable Guide Loops
• Teen Driver
• Tire Pressure Monitoring System with Tire Fill Alert
• Automatic Emergency Braking
• StabiliTrak, electronic stability control system with traction control
• 2 Charge/Data USB Ports Inside Center Console
• 6-Speaker Audio System Feature
• Electric Rear-Window Defogger
• 6 Speakers
• AM/FM radio: SiriusXM with 360L
• Premium audio system: Premium GMC Infotainment System
• Assist Step and Floor Liner Package:
• ProGrade Trailering System:
• Hitch Guidance with Hitch View
• SLT Convenience Package:
• Bucket seats
• Center console
• Ventilated front seats
• USB ports in center console
• LED roof marker lamps
• Bose Premium Sound System with Richbass woofer
• Sierra HD Pro Safety:
• Trailering Package:
• Trailer hitch
• Trailering hitch platform
• May require additional optional equipment
• Assist Step and Floor Liner Package
• ProGrade Trailering System
• SLT Convenience Package
• Sierra HD Pro Safety
• Trailering Package
• Front Bucket Seats
• Ventilated Driver and Front Passenger Seats
• In-vehicle Trailering App

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.