Likes

  • Huge and extroverted presence, if that’s you’re thing.
  • Immense hauling and towing capabilities
  • Impressive towing cameras and vast range of available tech and features.
  • Great variety of available models, including off-road-focused AT4

Dislikes

  • Many cabin pieces are obviously sourced from the less expensive Chevy Silverado 2500.
  • Asks a premium in price in Australia and servicing can be a challenge.
  • Questionable American build quality and access to spare parts.
  • Can attract immense levels of negative attention, expect abuse.

Stuff you should know

  • The GMC Sierra 2500HD is gaining popularity in Australia, especially in its premium AT4 and Denali trims. These higher-end versions offer a mix of luxury and off-road capability, catering to those looking for both status and comfort. Even the base model Sierra 2500HD strikes a balance between rugged utility and refinement, making it a solid choice for those needing serious hauling power without sacrificing comfort.
  • Positioned as the middle sibling in the Sierra lineup, the 2500HD sits between the half-ton Sierra 1500 and the larger, more heavy-duty Sierra 3500HD. It provides an ideal option for those who need substantial towing and payload capabilities without the size of a truly enormous truck.
  • The GMC Sierra 2500HD is available in five different body styles and offers two engine options: a 6.6L V8 petrol engine and a 6.6L Duramax turbo-diesel.
  • The lineup also includes both pre- and post-2024 updates, along with eight different trim levels. The extensive list of options and equipment packages available makes the Sierra 2500HD one of the most customizable trucks in its segment, allowing buyers to tailor the vehicle to their specific needs.
  • One of the standout features of the Sierra 2500HD is its spacious cabin, designed to comfortably accommodate both passengers and cargo. Whether you’re using it for work or leisure, the truck’s cabin offers plenty of room, ensuring comfort during long drives. This interior space is complemented by the truck’s exceptional hauling and towing capacities, typical of the heavy-duty truck class. For added convenience, the MultiPro tailgate offers a variety of configurations, making it easier to load and unload cargo.
  • Despite its strengths, the GMC Sierra 2500HD does have some drawbacks. One of the biggest challenges for Australian buyers is the limited support network for GMC vehicles, which can make maintenance and servicing more difficult. Additionally, the ride quality can feel rough compared to other trucks in the segment, and visibility from the driver’s seat is somewhat limited. While the Sierra offers a range of technology, its in-cabin features fall short when compared to more tech-forward competitors in the segment.
  • The current fourth generation of the GMC Sierra 2500HD was introduced in 2020, bringing a complete redesign that included updates to both technology and interior layout. With this redesign, the truck gained increased towing and hauling capacities, further solidifying its position in the heavy-duty market.
  • The Sierra 2500HD shares its platform and dimensions with the Chevrolet Silverado 2500HD, offering roomy interiors, wide beds, and convenient built-in steps for accessing the cargo area. However, the Sierra sets itself apart with additional standard features and higher-quality interior materials, providing a more premium feel compared to its sibling.
  • As with many American-made vehicles, there are ongoing concerns about the build quality and reliability of the GMC Sierra 2500HD. While the truck’s strong performance and capabilities are undeniable, buyers should be aware of potential long-term reliability issues that have historically affected some American brands. Understanding how the current generation holds up over time will be key for prospective buyers looking to invest in this heavy-duty truck, read on the learn more.

What goes wrong

Exterior

Rear Window

  • Some owners have reported leaks from the rear window.
  • While this issue can often be resolved with sealant, the necessity for a fix suggests a design or manufacturing oversight.

Daytime Running Lights

  • Issues with daytime running lights burning out have been noted by a few owners.
  • This may require the replacement of the light units or related components.

Mirrors

  • The large mirrors on the Sierra 2500HD can shake, which might be attributed to their size or potential design flaws.
  • There have been reports of electronic issues with the mirrors, including problems with actuators and lighting.

Lighting Issues

  • If exterior lights flash intermittently every 10 seconds, owners should disconnect the truck’s batteries for a few minutes to reset the module.
  • This often resolves the problem, but repeated occurrences might indicate a deeper issue.

Paint Quality

  • Earlier models of the Sierra 2500HD experienced problems with paint chipping and marking easily
  • This issue has been addressed in more recent models, which feature improved paint durability.

Interior

HVAC and Air Conditionin

  • Problems with the HVAC system have been reported, particularly with the temperature and air delivery mode door actuators.
  • Failure of these components can lead to expensive repairs, possibly requiring dashboard removal.

Electrical Gremlins

  • Some owners have encountered sporadic electrical issues.
  • It’s advisable to test all interior buttons and functions during a test drive to ensure everything operates correctly.

Speedometer and Gauges

  • There have been reports of erratic behavior from the speedometer and other gauges.
  • This issue can affect the accuracy of speed readings and other vital information.

Infotainment System

  • Pre-2024 models of the Sierra 2500HD have been known to experience various issues with the infotainment system, including dropped phone connectivity (Apple CarPlay and Android Auto), screen glitches, freezing, or system failures.
  • These problems are often resolved with software updates, though some owners have had to replace the entire infotainment system. The updated system has not been reported to have these issues.

Engines

6.6L Petrol V8 (L8T)

  • The 6.6L petrol V8 engine features a robust cast iron block, enhancing durability.
  • Some owners report occasional excessive oil consumption, though this issue is less prevalent compared to earlier 5.3L engines.
  • As a direct injection engine, it is prone to carbon buildup, which can affect performance.
  • It does not

Exterior

Rear Window

  • Some owners have reported leaks from the rear window.
  • While this issue can often be resolved with sealant, the necessity for a fix suggests a design or manufacturing oversight.

Daytime Running Lights

  • Issues with daytime running lights burning out have been noted by a few owners.
  • This may require the replacement of the light units or related components.

Mirrors

  • The large mirrors on the Sierra 2500HD can shake, which might be attributed to their size or potential design flaws.
  • There have been reports of electronic issues with the mirrors, including problems with actuators and lighting.

Lighting Issues

  • If exterior lights flash intermittently every 10 seconds, owners should disconnect the truck’s batteries for a few minutes to reset the module.
  • This often resolves the problem, but repeated occurrences might indicate a deeper issue.

Paint Quality

  • Earlier models of the Sierra 2500HD experienced problems with paint chipping and marking easily
  • This issue has been addressed in more recent models, which feature improved paint durability.

Interior

HVAC and Air Conditionin

  • Problems with the HVAC system have been reported, particularly with the temperature and air delivery mode door actuators.
  • Failure of these components can lead to expensive repairs, possibly requiring dashboard removal.

Electrical Gremlins

  • Some owners have encountered sporadic electrical issues.
  • It’s advisable to test all interior buttons and functions during a test drive to ensure everything operates correctly.

Speedometer and Gauges

  • There have been reports of erratic behavior from the speedometer and other gauges.
  • This issue can affect the accuracy of speed readings and other vital information.

Infotainment System

  • Pre-2024 models of the Sierra 2500HD have been known to experience various issues with the infotainment system, including dropped phone connectivity (Apple CarPlay and Android Auto), screen glitches, freezing, or system failures.
  • These problems are often resolved with software updates, though some owners have had to replace the entire infotainment system. The updated system has not been reported to have these issues.

Engines

6.6L Petrol V8 (L8T)

  • The 6.6L petrol V8 engine features a robust cast iron block, enhancing durability.
  • Some owners report occasional excessive oil consumption, though this issue is less prevalent compared to earlier 5.3L engines.
  • As a direct injection engine, it is prone to carbon buildup, which can affect performance.
  • It does not have Displacement On Demand technology, which helps avoid some reliability issues associated with older engines.

6.6L V8 Turbo Diesel (L5P)

  • Issues such as rough idle and fuel consumption problems have been reported, leading to a recall for an ECU update.
  • The global B electronics platform enables over-the-air updates but has led to problems where the truck becomes immobile during updates. This can be inconvenient given the truck’s large size.
  • There have been electrical misfires due to poor injector connectors, which have been addressed by a recall.
  • The MAP sensor often clogs, a common issue in modern diesels, primarily due to the EGR system. This clogging typically occurs after 20,000-30,000 km and is part of routine servicing.
  • Crank pin failure and engine destruction have been reported but are not as widespread as some sources suggest. Problems often arise from improper installation of the harmonic balancer or front seal. This issue is more common in modified engines due to increased power demands.

Transmissions

Early 6-Speed Transmission

  • Generally reliable if properly maintained, with regular servicing recommended.
  • 10-Speed Transmission
  • Co-developed by Ford and General Motors, not built by Allison as the badge might suggest.
  • Some issues reported include problems with the valve body, oil pump, and clutch packs. Parts availability can be problematic, and service intervals are recommended every 40,000 km.
  • Finding workshops equipped to service this heavy vehicle can be difficult in Australia.

Driving

  • Some owners report harsh downshifts from 5th to 4th gear and occasional lurching when selecting park.
  • Software updates or replacement of the transmission control module may resolve these issues, although some owners have had transmissions replaced under warranty.

Steering

  • At certain angles, the steering can produce a clunking noise.
  • This issue is often resolved with zip ties, according to recommendations from owner groups.

Adaptive Cruise Control

  • The adaptive cruise control system can be overly aggressive in its calibration, affecting driving comfort.

General Driving Experience

In Australia, the Sierra 2500HD attracts significant attention, with reactions ranging from admiration to criticism. Despite its impressive capabilities, the truck can struggle with tight spaces, small roundabouts, and suburban streets. It is challenging to maneuver in metro areas and may not fit well in drive-throughs or tight parking spots, reflecting a contrast between its off-road prowess and urban practicality.

Exterior

Rear Window

  • Some owners have reported leaks from the rear window.
  • While this issue can often be resolved with sealant, the necessity for a fix suggests a design or manufacturing oversight.

Daytime Running Lights

  • Issues with daytime running lights burning out have been noted by a few owners.
  • This may require the replacement of the light units or related components.

Mirrors

  • The large mirrors on the Sierra 2500HD can shake, which might be attributed to their size or potential design flaws.
  • There have been reports of electronic issues with the mirrors, including problems with actuators and lighting.

Lighting Issues

  • If exterior lights flash intermittently every 10 seconds, owners should disconnect the truck’s batteries for a few minutes to reset the module.
  • This often resolves the problem, but repeated occurrences might indicate a deeper issue.

Paint Quality

  • Earlier models of the Sierra 2500HD experienced problems with paint chipping and marking easily
  • This issue has been addressed in more recent models, which feature improved paint durability.

Interior

HVAC and Air Conditionin

  • Problems with the HVAC system have been reported, particularly with the temperature and air delivery mode door actuators.
  • Failure of these components can lead to expensive repairs, possibly requiring dashboard removal.

Electrical Gremlins

  • Some owners have encountered sporadic electrical issues.
  • It’s advisable to test all interior buttons and functions during a test drive to ensure everything operates correctly.

Speedometer and Gauges

  • There have been reports of erratic behavior from the speedometer and other gauges.
  • This issue can affect the accuracy of speed readings and other vital information.

Infotainment System

  • Pre-2024 models of the Sierra 2500HD have been known to experience various issues with the infotainment system, including dropped phone connectivity (Apple CarPlay and Android Auto), screen glitches, freezing, or system failures.
  • These problems are often resolved with software updates, though some owners have had to replace the entire infotainment system. The updated system has not been reported to have these issues.

Engines

6.6L Petrol V8 (L8T)

  • The 6.6L petrol V8 engine features a robust cast iron block, enhancing durability.
  • Some owners report occasional excessive oil consumption, though this issue is less prevalent compared to earlier 5.3L engines.
  • As a direct injection engine, it is prone to carbon buildup, which can affect performance.
  • It does not have Displacement On Demand technology, which helps avoid some reliability issues associated with older engines.

6.6L V8 Turbo Diesel (L5P)

  • Issues such as rough idle and fuel consumption problems have been reported, leading to a recall for an ECU update.
  • The global B electronics platform enables over-the-air updates but has led to problems where the truck becomes immobile during updates. This can be inconvenient given the truck’s large size.
  • There have been electrical misfires due to poor injector connectors, which have been addressed by a recall.
  • The MAP sensor often clogs, a common issue in modern diesels, primarily due to the EGR system. This clogging typically occurs after 20,000-30,000 km and is part of routine servicing.
  • Crank pin failure and engine destruction have been reported but are not as widespread as some sources suggest. Problems often arise from improper installation of the harmonic balancer or front seal. This issue is more common in modified engines due to increased power demands.

Transmissions

Early 6-Speed Transmission

  • Generally reliable if properly maintained, with regular servicing recommended.
  • 10-Speed Transmission
  • Co-developed by Ford and General Motors, not built by Allison as the badge might suggest.
  • Some issues reported include problems with the valve body, oil pump, and clutch packs. Parts availability can be problematic, and service intervals are recommended every 40,000 km.
  • Finding workshops equipped to service this heavy vehicle can be difficult in Australia.

Driving

  • Some owners report harsh downshifts from 5th to 4th gear and occasional lurching when selecting park.
  • Software updates or replacement of the transmission control module may resolve these issues, although some owners have had transmissions replaced under warranty.

Steering

  • At certain angles, the steering can produce a clunking noise.
  • This issue is often resolved with zip ties, according to recommendations from owner groups.

Adaptive Cruise Control

  • The adaptive cruise control system can be overly aggressive in its calibration, affecting driving comfort.

General Driving Experience

In Australia, the Sierra 2500HD attracts significant attention, with reactions ranging from admiration to criticism. Despite its impressive capabilities, the truck can struggle with tight spaces, small roundabouts, and suburban streets. It is challenging to maneuver in metro areas and may not fit well in drive-throughs or tight parking spots, reflecting a contrast between its off-road prowess and urban practicality.

Should you buy it?

Should you buy a GMC Sierra 2500 HD? If you genuinely need the towing capacity, load capability, space, and comfort all in one vehicle—and you’ve found one with a flawless history, plus all the import documentation and conversion requirements check out—then absolutely, go for it. Really, only a RAM or Silverado can match what the GMC offers, and each has its own pros and cons.

Even if you have no intention of using it for its designed purpose and you’re buying it for the novelty factor or just because it makes you feel good, sure, why not?

However, if you’re buying it purely because you want people to notice you and you’re fine admitting that, yes, people will definitely look at you in a 2500. But just be aware, it’s probably not because they think you’re cool—they’ll most likely think you’re a wanker.

Should you buy a GMC Sierra 2500 HD? If you genuinely need the towing capacity, load capability, space, and comfort all in one vehicle—and you’ve found one with a flawless history, plus all the import documentation and conversion requirements check out—then absolutely, go for it. Really, only a RAM or Silverado can match what the GMC offers, and each has its own pros and cons.

Even if you have no intention of using it for its designed purpose and you’re buying it for the novelty factor or just because it makes you feel good, sure, why not?

However, if you’re buying it purely because you want people to notice you and you’re fine admitting that, yes, people will definitely look at you in a 2500. But just be aware, it’s probably not because they think you’re cool—they’ll most likely think you’re a wanker.

Should you buy it?

Should you buy a GMC Sierra 2500 HD? If you genuinely need the towing capacity, load capability, space, and comfort all in one vehicle—and you’ve found one with a flawless history, plus all the import documentation and conversion requirements check out—then absolutely, go for it. Really, only a RAM or Silverado can match what the GMC offers, and each has its own pros and cons.

Even if you have no intention of using it for its designed purpose and you’re buying it for the novelty factor or just because it makes you feel good, sure, why not?

However, if you’re buying it purely because you want people to notice you and you’re fine admitting that, yes, people will definitely look at you in a 2500. But just be aware, it’s probably not because they think you’re cool—they’ll most likely think you’re a wanker.

Need help with finance?

What is the car's build year?

2020

Loan Amount

$5,000

Finance estimate ~

$30

Per week*

8.49%

Comparison rate p.a#

Models, pricing & features

GMC Sierra 2500-1

Sierra / Pro (from 2024)

Price when new: N/A

Price used: POA

Equipment:

  • LED reflector headlamps
  • LED wheel arch lamps
  • 12 fixed cargo tie-downs (three in each corner rated at 500 lbs per corner)
  • New side Bed Step and larger rear bumper corner steps
  • Lane Change Alert with Side Blind Zone Alert
  • Rear Cross Traffic Alert
  • Automatic Emergency Braking
  • High Definition Surround Vision
  • Rear Camera Mirror and Bed View Camera
  • Multicolour 15″ Diagonal Head-Up Display
  • High Definition Rear Vision Camera
  • Safety Alert Seat
  • Lane Departure Warning
  • Forward Collision Alert
  • Intelli-Beam Headlamps
  • Front and Rear Park Assist
  • OnStar® Safety & Security Plan
  • Electronic shift transfer case with rotary controls on 4WD models
  • Heavy-duty automatic locking rear differential
  • 4-wheel antilock disc brakes with Duralife brake rotors
  • Manual-folding/-extending vertical trailering mirrors with lower convex mirrors
  • Conventional trailer hitch with 7- and 4-pin connectors and Hitch Guidance
  • 40/20/40 front cloth bench seat
  • 7″ diagonal infotainment system with Apple CarPlay and Android Auto compatibility
  • Rear air vents (Double Cab and Crew Cab models)
  • Available in dual-rear-wheel configuration
  • CONVENIENCE PACKAGE:
  • Keyless entry,
  • EZ-Lift Tailgate (power-lock and -release),
  • tinted glass,
  • LED cargo bed lighting,
  • rear-window defogger,
  • cruise control,
  • outside power-adjustable vertical trailering mirrors with heated upper glass
  • SAFETY CONFIDENCE PACKAGE:
  • Forward Collision Alert, Automatic Emergency Braking, cruise control, steering-wheel audio controls, and 4.2″ diagonal color Driver Information Center
  • Driver Alert Packages
  • Driver Alert Package I
    • Front and Rear Park Assist (features may require dealer retrofit on certain models)
    • Lane Change Alert with Side Blind Zone Alert
    • Rear Cross Traffic Alert
    • Perimeter lighting (available on SLE, SLT, and AT4)
  • Driver Alert Package II
    • Forward Collision Alert
    • Lane Departure Warning
    • Automatic Emergency Braking
    • IntelliBeam—auto high beams
    • Following Distance Indicator (available on SLE, SLT, and AT4)
  • Technology Package
  • Rear Camera Mirror
  • 8″ digital Driver Information Center (AT4 models)
  • Multicolor 15″ Diagonal Head-Up Display (available on AT4 and Denali)
  • X31 Off-Road Packages
  • X31 Off-Road and Protection Package
    • Off-road suspension with twin-tube Rancho® shocks
    • Hill Descent Control
    • Skid plates
    • Spray-on bedliner
    • All-weather floor liners
    • X31 badge on bed
    • 18″ 6-spoke machined aluminum wheels with Dark Gray Metallic accents and all-terrain blackwall tires (SLE)
    • 20″ 6-spoke machined aluminum wheels with Bright Silver accents and all-terrain blackwall tires (SLT) (available on SRW Double Cab and Crew Cab SLE and SLT)
  • X31 Off-Road Package
    • Requires 4WD model
    • Off-road suspension with twin-tube Rancho shocks
    • Hill Descent Control
    • Skid plates
    • X31 hard badge on bed
    • Not available with Dual Rear Wheel (DRW) models (available on SRW Pro, SLE, and SLT)
  • Snow Plow Prep/ Camper Package
  • Requires 4WD model
  • 220-amp alternator
  • Increased front GAWR
  • Skid plates
  • Pass-through dash grommet hole
  • Roof emergency light provisions (available on all trims)
  • Gooseneck/Fifth-Wheel Prep Package
  • Hitch platform with tray to accept ball
  • Stamped bed holes with removable caps installed
  • Integrated trailer brake controller on Pro models
  • Bed-mounted 7-pin trailer harness
  • Additional package content including Bed View Camera and spray-on bedliner varies by trim (available on all trims)
  • Heavy-Duty Front Spring/Camper Package
  • Increased front GAWR (available on all trims)

SLE

Price when new: N/A

Price used: POA

Adds:

  • Includes Sierra standard content plus:
    • Bright side-window surround
    • Body-colour door handles
    • 8″ diagonal infotainment system
    • Remote keyless entry
    • 2 USB ports on the instrument panel
    • Steering-wheel-mounted cruise control
    • Integrated trailer brake controller
    • Manual-folding/-extending power-adjustable vertical trailering mirrors with heated upper glass and integrated turn signals
    • Leather-wrapped steering wheel with audio controls
    • 4.2″ diagonal Driver Information Center
    • Available World’s First Six-Function MultiPro Tailgate
    • Available dual-rear-wheel configuration
  • SLE CONVENIENCE PACKAGE:
  • Dual-zone climate control,
  • 10-way power driver seat including power lumbar,
  • heated driver and front outboard passenger seats,
  • heated steering wheel,
  • manual-tilt and -telescoping steering column,
  • rear-window defogger,
  • keyless open and start,
  • steering-column lock,
  • remote start,
  • content theft alarm,
  • front 40/20/40 split bench with under-seat storage (Crew Cab and Double Cab models),
  • 2 charge-only USB ports for second row,
  • LED cargo bed lighting,
  • rear auxiliary 12-volt power outlet,
  • Fog lamps,
  • roof marker lamps (Single Rear Wheel models),
  • rear wheelhouse liners (Single Rear Wheel models)
  • SLE PREFERRED PACKAGE:
  • 120-volt power outlet,
  • 120-volt bed-mounted power outlet,
  • 8″ diagonal Premium GMC Infotainment System,
  • SiriusXM with 360L (3-month trial),
  • High Definition Rear Vision Camera,
  • 2 USB ports,
  • Hitch Guidance with Hitch View,
  • In-vehicle Trailering App,
  • HD Radio, Universal Home Remote,
  • Rear sliding power window (Crew Cab and Double Cab models),
  • Cloth Rear-Seat Storage Package (Crew Cab models)

SLT

Price when new: N/A

Price used: POA

Adds:

  • Includes SLE standard content plus:
    • Standard World’s First Six-Function MultiPro Tailgate
    • ProGrade Trailering System with in-vehicle Trailering App
    • High-intensity LED headlamps
    • Signature LED tail-lamps and LED fog lamps
    • Heated steering wheel
    • High Definition Rear Vision Camera
    • Heated driver and front outboard passenger 10-way power leather-appointed front seats
    • Power-folding/-extending vertical trailering mirrors with auto-dimming upper glass, perimeter lighting, puddle lamps, auxiliary lighting, and chrome mirror caps
    • Available dual-rear-wheel Crew Cab configuration
  • SLT CONVENIENCE PACKAGE:
  • Bucket seats with centre console,
  • Ventilated front seats,
  • Rear sliding power window,
  • Universal Home Remote,
  • 2 USB ports (inside console with bucket seats) with auxiliary input,
  • LED roof marker lamps (Single Rear Wheel models),
  • Rear heated seats (Crew Cab models)
  • SLT PREFERRED PACKAGE:
  • Bed View Camera,
  • High Definition Surround Vision with 2 auxiliary trailer-view camera provisions,
  • 8″ diagonal Premium GMC Infotainment System with Navigation,
  • Bose Premium Audio System with Richbass woofer,
  • Wireless charging
  • SLT PREMIUM PACKAGE:
  • Includes SLT Convenience Package,
  • SLT Preferred Package,
  • Driver Alert Package I,
  • Spray-on bed-liner,
  • 6″ rectangular cab-length chrome assist steps (Crew Cab models) or 6″ rectangular chrome assist steps (Double Cab models)

SLT Premium Plus Package

Price when new: N/A

Price used: POA

  • Includes SLT Premium Package plus:
    • Front bucket seats with centre console
    • Ventilated front seats
    • Rear sliding power window
    • Universal Home Remote
    • USB ports with auxiliary input
    • Roof marker lamps
    • Rear outboard heated seats (Crew Cab models)
    • 8″ diagonal Premium GMC Infotainment System with Navigation
    • Bose Premium Audio System
    • Wireless charging
    • Front and Rear Park Assist
    • Lane Change Alert with Side Blind Zone Alert
    • Rear Cross Traffic Alert
    • Forward Collision Alert
    • Lane Departure Warning
    • Automatic Emergency Braking
    • IntelliBeam headlamps
    • Following Distance Indicator
    • 20″ machined aluminium wheels with Bright Silver accents
    • 6″ chrome rectangular assist steps
    • Spray-on bed-liner

AT4

Price when new: N/A

Price used: POA

  • Off-road suspension
  • Rancho® shocks
  • Electronic 2-speed AutoTrac transfer case
  • Skid plates
  • Eaton® automatic locking rear differential
  • Traction Select System with Off-Road mode
  • 18″ wheels with all-terrain tires or available 20″ wheels and tires
  • Power-folding/-extending vertical trailering mirrors with auto-dimming upper glass,
  • Perimeter lighting,
  • Puddle lamps,
  • Auxiliary lighting,
  • Black mirror caps
  • Spray-on bed-liner with AT4 logo
  • Premium GMC Infotainment System with customisable profiles and 8″ diagonal touch-screen
  • Heated and ventilated 10-way power front leather-appointed bucket seats
  • Heated rear outboard seats
  • Heated and leather-wrapped steering wheel
  • All-weather floor liners with AT4 logo
  • Rear seat back storage
  • Available multicolour 15″ diagonal Head-Up Display with Off-Road Inclinometer
  • Up to 15 available camera views
  • AT4 PREFERRED PACKAGE:
  • Bed View Camera,
  • High Definition Surround Vision with 2 auxiliary trailer-view camera provisions,
  • Universal Home Remote,
  • Rear sliding power window,
  • 8″ diagonal Premium GMC Infotainment System with Navigation,
  • Bose Premium Audio System with Richbass woofer,
  • Roof marker lamps,
  • Wireless charging
  • AT4 PREMIUM PACKAGE:
  • Universal Home Remote,
  • Rear sliding power window,
  • 8″ diagonal Premium GMC Infotainment System with Navigation,
  • Bose Premium Audio System,
  • Roof marker lamps,
  • Wireless charging,
  • Front and Rear Park Assist,
  • Lane Change Alert with Side Blind Zone Alert,
  • Rear Cross Traffic Alert, 20″ machined aluminium wheels with high-gloss black accents,
  • 6″ black rectangular assist steps

Denali

Price when new: N/A

Price used: POA

  • Includes SLT standard content plus:
    • Off-road suspension
    • Rancho shocks
    • Electronic 2-speed AutoTrac transfer case
    • Skid plates
    • Spray-on bed-liner with Denali logo
    • 20″ polished aluminium wheels (single-rear-wheel models including 3500 HD)
    • Heated and ventilated Forge leather-appointed seating
    • Heated rear outboard seats
    • Ash wood trim, brushed aluminium, and chrome accents
    • Premium GMC Infotainment System with Navigation and 8″ diagonal touch-screen
    • Bose® Premium Audio System
    • 8″ digital Driver Information Center
    • Safety technologies including Lane Departure Warning, Lane Change Alert with Side Blind Zone Alert, Rear Cross Traffic Alert, Forward Collision Alert, Automatic Emergency Braking, IntelliBeam headlamps, and Following Distance Indicator
    • Available dual-rear-wheel configuration
  • DENALI ULTIMATE PACKAGE:
  • High Definition Surround Vision,
  • Rear Camera Mirror,
  • Bed View Camera,
  • Multicolour 15″ diagonal Head-Up Display,
  • Power sunroof
  • DENALI BLACK DIAMOND EDITION:
  • 6.6L Duramax Turbo Diesel engine,
  • Ebony Twilight Metallic exterior colour,
  • Denali Ultimate Package,
  • Auxiliary trailer camera,
  • MultiPro Audio System by KICKER,
  • Premium front and rear floor liners with removable carpet inserts,
  • Trailer Tire Pressure Monitoring System,
  • Power-retractable assist steps with stainless steel accents and LED perimeter lighting,
  • 20″ high-gloss black painted aluminium wheels (Single Rear Wheel models)

Tech specs

Body Styles

  • 2 door REGULAR CAB LONG BED
  • 4 door DOUBLE CAB STANDARD BED
  • 4 door DOUBLE CAB LONG BED
  • 4 door CREW CAB STANDARD BED
  • 4 door CREW CAB LONG BED

Engine Specs

  • 6.6 litre, V8 Petrol (L8T), 299 kW (401 hp) and 629 N⋅m (464 lb⋅ft)
  • 6.6 litre, V8 Turbo Diesel (L5P) 332 kW (445 hp) and 1,234 N⋅m (910 lb⋅ft) or 350 kW (470 hp) and 1,322 N⋅m (975 lb⋅ft) Post update.

Transmission

  • 6-speed  Automatic (petrol)
  • 10-speed Automatic (diesel)

Fuel Consumption

  • Approx 17 L / 100km (petrol)
  • Approx 12 L / 100km (diesel)

Regular Cab with Long Bed

  • Wheelbase: 359.1 cm (141.55 inches)
  • Length: 599.4 cm (235.5 inches)
  • Height: 203.8 cm (79.94 inches)
  • Width (without mirrors): 207.6 cm (81.75 inches)
  • Weight: 2,693 kg (5,937 pounds)
  • Box Length: 249.6 cm (98.27 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 2.36 cubic meters (83.50 cubic feet)

Double Cab with Standard Bed

  • Wheelbase: 379.5 cm (149.40 inches)
  • Length: 610.2 cm (240.45 inches)
  • Height: 203.9 cm (79.95 inches)
  • Width (without mirrors): 207.7 cm (81.85 inches)
  • Weight: 2,834 kg (6,253 pounds)
  • Box Length: 208.6 cm (82.25 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box

Body Styles

  • 2 door REGULAR CAB LONG BED
  • 4 door DOUBLE CAB STANDARD BED
  • 4 door DOUBLE CAB LONG BED
  • 4 door CREW CAB STANDARD BED
  • 4 door CREW CAB LONG BED

Engine Specs

  • 6.6 litre, V8 Petrol (L8T), 299 kW (401 hp) and 629 N⋅m (464 lb⋅ft)
  • 6.6 litre, V8 Turbo Diesel (L5P) 332 kW (445 hp) and 1,234 N⋅m (910 lb⋅ft) or 350 kW (470 hp) and 1,322 N⋅m (975 lb⋅ft) Post update.

Transmission

  • 6-speed  Automatic (petrol)
  • 10-speed Automatic (diesel)

Fuel Consumption

  • Approx 17 L / 100km (petrol)
  • Approx 12 L / 100km (diesel)

Regular Cab with Long Bed

  • Wheelbase: 359.1 cm (141.55 inches)
  • Length: 599.4 cm (235.5 inches)
  • Height: 203.8 cm (79.94 inches)
  • Width (without mirrors): 207.6 cm (81.75 inches)
  • Weight: 2,693 kg (5,937 pounds)
  • Box Length: 249.6 cm (98.27 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 2.36 cubic meters (83.50 cubic feet)

Double Cab with Standard Bed

  • Wheelbase: 379.5 cm (149.40 inches)
  • Length: 610.2 cm (240.45 inches)
  • Height: 203.9 cm (79.95 inches)
  • Width (without mirrors): 207.7 cm (81.85 inches)
  • Weight: 2,834 kg (6,253 pounds)
  • Box Length: 208.6 cm (82.25 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 1.97 cubic meters (69.50 cubic feet)

Double Cab with Long Bed

  • Wheelbase: 404.7 cm (158.94 inches)
  • Length: 635.7 cm (250.08 inches)
  • Height: 202.9 cm (79.82 inches)
  • Width (without mirrors): 207.7 cm (81.85 inches)
  • Weight: 2,891 kg (6,374 pounds)
  • Box Length: 208.4 cm (82.20 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 1.97 cubic meters (69.50 cubic feet)

Crew Cab with Standard Bed

  • Wheelbase: 404.7 cm (158.94 inches)
  • Length: 635.7 cm (250.08 inches)
  • Height: 202.9 cm (79.82 inches)
  • Width (without mirrors): 207.7 cm (81.85 inches)
  • Weight: 2,884 kg (6,365 pounds)
  • Box Length: 208.4 cm (82.20 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 1.97 cubic meters (69.50 cubic feet)

Crew Cab with Long Bed

  • Wheelbase: 436.6 cm (172.00 inches)
  • Length: 675.1 cm (266.09 inches)
  • Height: 202.4 cm (79.65 inches)
  • Width (without mirrors): 207.7 cm (81.85 inches)
  • Weight: 2,933 kg (6,465 pounds)
  • Box Length: 249.6 cm (98.27 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 2.36 cubic meters (83.50 cubic feet)

Maximum Conventional Towing

  • Regular Cab: 6,577 kg (14,500 pounds)
  • Double Cab: 8,118 kg (17,900 pounds)
  • Crew Cab: 9,072 kg (20,000 pounds)

Maximum Fifth-Wheel/Gooseneck Towing

  • Regular Cab: 10,168 kg (22,430 pounds)
  • Double Cab: 8,443 kg (18,600 pounds)
  • Crew Cab: 10,002 kg (22,070 pounds)

Maximum Payload Capacity

  • Regular Cab: 1,834 kg (4,039 pounds)
  • Double Cab: 1,762 kg (3,884 pounds)
  • Crew Cab: 1,770 kg (3,903 pounds)

Body Styles

  • 2 door REGULAR CAB LONG BED
  • 4 door DOUBLE CAB STANDARD BED
  • 4 door DOUBLE CAB LONG BED
  • 4 door CREW CAB STANDARD BED
  • 4 door CREW CAB LONG BED

Engine Specs

  • 6.6 litre, V8 Petrol (L8T), 299 kW (401 hp) and 629 N⋅m (464 lb⋅ft)
  • 6.6 litre, V8 Turbo Diesel (L5P) 332 kW (445 hp) and 1,234 N⋅m (910 lb⋅ft) or 350 kW (470 hp) and 1,322 N⋅m (975 lb⋅ft) Post update.

Transmission

  • 6-speed  Automatic (petrol)
  • 10-speed Automatic (diesel)

Fuel Consumption

  • Approx 17 L / 100km (petrol)
  • Approx 12 L / 100km (diesel)

Regular Cab with Long Bed

  • Wheelbase: 359.1 cm (141.55 inches)
  • Length: 599.4 cm (235.5 inches)
  • Height: 203.8 cm (79.94 inches)
  • Width (without mirrors): 207.6 cm (81.75 inches)
  • Weight: 2,693 kg (5,937 pounds)
  • Box Length: 249.6 cm (98.27 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 2.36 cubic meters (83.50 cubic feet)

Double Cab with Standard Bed

  • Wheelbase: 379.5 cm (149.40 inches)
  • Length: 610.2 cm (240.45 inches)
  • Height: 203.9 cm (79.95 inches)
  • Width (without mirrors): 207.7 cm (81.85 inches)
  • Weight: 2,834 kg (6,253 pounds)
  • Box Length: 208.6 cm (82.25 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 1.97 cubic meters (69.50 cubic feet)

Double Cab with Long Bed

  • Wheelbase: 404.7 cm (158.94 inches)
  • Length: 635.7 cm (250.08 inches)
  • Height: 202.9 cm (79.82 inches)
  • Width (without mirrors): 207.7 cm (81.85 inches)
  • Weight: 2,891 kg (6,374 pounds)
  • Box Length: 208.4 cm (82.20 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 1.97 cubic meters (69.50 cubic feet)

Crew Cab with Standard Bed

  • Wheelbase: 404.7 cm (158.94 inches)
  • Length: 635.7 cm (250.08 inches)
  • Height: 202.9 cm (79.82 inches)
  • Width (without mirrors): 207.7 cm (81.85 inches)
  • Weight: 2,884 kg (6,365 pounds)
  • Box Length: 208.4 cm (82.20 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 1.97 cubic meters (69.50 cubic feet)

Crew Cab with Long Bed

  • Wheelbase: 436.6 cm (172.00 inches)
  • Length: 675.1 cm (266.09 inches)
  • Height: 202.4 cm (79.65 inches)
  • Width (without mirrors): 207.7 cm (81.85 inches)
  • Weight: 2,933 kg (6,465 pounds)
  • Box Length: 249.6 cm (98.27 inches)
  • Box Width: 181.6 cm (71.40 inches)
  • Box Area Height: 53.3 cm (21.00 inches)
  • Cargo Volume: 2.36 cubic meters (83.50 cubic feet)

Maximum Conventional Towing

  • Regular Cab: 6,577 kg (14,500 pounds)
  • Double Cab: 8,118 kg (17,900 pounds)
  • Crew Cab: 9,072 kg (20,000 pounds)

Maximum Fifth-Wheel/Gooseneck Towing

  • Regular Cab: 10,168 kg (22,430 pounds)
  • Double Cab: 8,443 kg (18,600 pounds)
  • Crew Cab: 10,002 kg (22,070 pounds)

Maximum Payload Capacity

  • Regular Cab: 1,834 kg (4,039 pounds)
  • Double Cab: 1,762 kg (3,884 pounds)
  • Crew Cab: 1,770 kg (3,903 pounds)

Warranty & servicing

Warranty

  • Depends on importer. Generally 3 years / 100,00 kms

Servicing

  • 10,000 km / 12 months (All Models)

Buying a used car? Buy a PPSR report first.

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Disclaimer

Please note that pricing information is subject to fluctuations in the automotive market.

Information correct as of Sep 15, 2024.

The advice provided on this website is general advice only. It has been prepared without taking into account your objectives, financial situation or needs. Before acting on this advice, you should consider the appropriateness of the advice, having regard to your own objectives, financial situation and needs.

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