Current Offers!
We had one mission - to help you achieve more and do it all with greater confidence. The Next Generation Sierra Heavy Duty is engineered to by stronger with maximum trailering capability. And smarter with the all-new available ProGrade Trailering System and the confidence it offers - when hooking up your trailer, while on the road and when backing your  trailer into place. Along with the other available innovations below, Sierra Heavy Duty is engineered for heavy-duty power, poise and presence.


Sierra HD Models

Sierra HD SLE:
Standard features include:








  • All-new 6.6L gas V8 engine with 6-speed automatic transmission
  • Automatic locking rear differential
  • StabiliTrak with Traction Control
  • Hill Start Assist
  • Duralife brake rotors
  • Chrome grille, bumpers and window surround
  • Best-in-class HD cargo bed volume
  • 12 total cargo tie-downs, rated at 227 kg (500 lb.) per corner
  • Side Bed Step and CornerStep rear bumper
  • 7-in. diagonal GMC Infotainment System
  • Apple CarPlay and Android Auto compatibility
  • Rear air vents on Double and Crew Cab models
  • LED headlamps and tail lamps with signature C-shape design
  • Available remote keyless entry, cruise control, LED cargo box lighting and 120V bed outlet.
  • Leather-wrapped steering wheel
  • Remote keyless entry
Sierra HD SLT:
SLT includes SLE standard features, plus these and more:



 


  • All-new 6.6L gas V8 engine with 6-speed automatic transmission
  • GMC MultiPro Tailgate - world's first six-function tailgate
  • ProGrade Trailering System with in-vehicle Trailering App
  • Traction Select System with Tow/Haul Mode
  • Electronic 2-speed AutoTrac transfer case (4WD models only)
  • Automatic locking rear differential
  • Digital Variable Steering Assist
  • Best-in-class HD cargo bed volume
  • 12 total cargo tie-downs, rated at 227 kg (500 lb.) per corner
  • Side Bed Step and CornerStep rear bumper
  • Premium GMC Infotainment System with customization profiles and 8-in. diagonal touch-screen
  • Heated, 10-way power leather-appointed Outboard front seats
  • Heated, leather-wrapped  steering wheel
  • Rear seatback storage
Sierra HD AT4:
Features include:



 

  • All-new 6.6L gas V8 engine with 6-speed automatic transmission
  • Available 6.6L Duramax Turbo Diesel V8 with Allison 10-speed automatic transmission
  • Off-road suspension, Rancho shocks and skid plates
  • 18" all-terrain tires and available 20" all-terrain tires
  • Black chrome grille inserts with high-gloss-black grille surround
  • Red front recovery hooks
  • High-intensity LED headlamps and LED tail lamps 
  • GMC MultiPro Tailgate -world's first six-function tailgate
  • ProGrade Trailering System with In-Vehicle Trailering App
  • Traction Select System with Off road mode and Tow/Haul mode
  • Electronic 2-speed AutoTrac Transfer Case
  • Digital Variable Steering Assist
  • Best-in-class HD cargo bed volume
  • 12 total cargo tie-downs, rated at 227 kg (500 lb.) per corner
  • Spray-on bedliner with AT4 logo
  • Side Bed Step and CornerStep rear bumper
  • Premium GMC Infotainment System with customization profiles and 8-in. diagonal touch-screen
  • Heated and ventilated leather-appointed 10-way power front seats and heated rear outboard rear seats
Sierra HD Denali:
Features include:


 
  • Available 6.6L Duramax Turbo Diesel V8 with Allison 10-speed automatic transmission
  • Chrome front recovery hooks
  • High-intensity LED headlamps and LED tail lamps
  • GMC MultiPro Tailgate - world's first six-function tailgate
  • ProGrade Trailering System with In-Vehicle Trailering App
  • Traction Select System with Tow/Haul mode
  • Off-road suspension, Rancho shocks and skid plates
  • 20" Polished Aluminum wheels with All Terrain Tires (SRW) 
  • Electronic 2-speed AutoTrac Transfer Case
  • Digital Variable Steering Assist
  • Best-in-class HD cargo bed volume 
  • 12 total cargo tie-downs, rated at 227 kg (500 lb.) per corner
  • Spray-on bedliner with Denali logo
  • Side Bed Step and CornerStep rear bumper
  • Premium GMC Infotainment System with Navigation System, customization profiles and 8-in. diagonal touch-screen
  • Bose premium sound system
  • Authentic perforated Forge leather-appointed seating and open-pore ash wood trim
  • Heated and ventilated front seats and heated outboard rear seats
  • Heated, leather-wrapped steering wheel
Top Features:

Trailering System:
The Next Generation Sierra HD is engineered to optimized your trailering experience with the available ProGrade Trailering System. This is a suite of intelligent technologies, including an available in-vehicle trailering app and an available camera package that helps give you a sense of control to hitch and tow with confidence. 
  • Available In-Vehicle Trailering App
  • Available Phone Companion App
  • Trailer Light Sequence Test
  • Available Hitch Guidance with Hitch View
Advanced Power:
All-New 6.6L V8 Gas Engine
  • 401 hp
  • 464 lb.-lb. of torque
  • Compression Ratio of 10.75:1
  • Valve Train: overhead-valve, two valves per cylinder, variable valve timing
  • 6-speed automatic, heavy-duty automatic transmission
Available 6.6L Duramax Turbo Diesel V8
  • 445 hp
  • 910 lb.-ft. of torque
  • Compression Ratio of 16:1
  • Diesel Exhaust Brake System
  • Valve Train: overhead-valve, four valves per cylinder
  • Allison 10-speed automatic transmission
Cargo Box Volume
Best-In-Class Heavy Duty Cargo Bed Volume with a roll-formed high-strength steel bed, durable spray-on bedliner, 12 cargo tie-downs (500-lb. rating per corner), best-in-class heavy-duty cargo bed volume, and Short Bed: 1,971L (69.6 cu. ft.) / Long Bed: 2,367 L (83.5 cu.ft.)

Camera Views
Class-leading available 15 camera views. Easily keep tabs on your truck and trailer with up to 15 different available camera views - the most offered on any heavy-duty pickup - to optimized the view around the truck and compatible trailers.
MultiPro Tailgate
Offers six distinct functions designed to improve loading, unloading and accessing the cargo box.
  • Primary gate - power release
  • Primary gate load stop - floor cargo
  • Easy access - inner gate folds down
  • Full - width step - inner gate folds into a large step
  • Inner gate load stop - second - tier cargo
  • Inner gate work surface
On The Side
New Side Bedstep: The new standard Side BedStep located just in front of the rear wheel arches complements the large CornerStep rear bumper to provide easier access when grabbing equipment from cargo bed. 
New Trailering Mirrors: Power-adjustable Chrome capped trailering mirrors that  power fold, extend and retract at the touch of a button. The door mounted mirror offer the following features to help improve visibility while trailering.
Traction Select
The Traction Select System allows you quickly switch between multiple traction configurations, including Off-Road mode and Tow/Haul mode, to help improve traction and control while driving on gravel or in muddy conditions. The system will retain the tow/haul setting configurations for up to 4 hours after the vehicle is turned off, eliminating the need to re-engage the system when returning from a brief stop or a long journey. 
Sierra 2500 Heavy Duty Spec Highlights
Sierra 3500 Heavy Duty Spec Highlights