OFFERS
WAY POWER FRONT SEATS WITH MASSAGE FEATURE
2025 SIERRA HEAVY DUTY
DENALI
   
   
   

OFFERS
16-WAY POWER FRONT SEATS WITH MASSAGE FEATURE

OFFERS
TRAILERING ASSISTANT TECHNOLOGIES

AVAILABLE
13.4” DIAGONAL CENTER TOUCH-SCREEN

OFFERS
SIX-FUNTION MULTIPROTM TAILGATE

OFFERS
UNIVERSAL VEHICLE MODULE


3 YEARS ONSTAR CONNECT PLAN1 INCLUDED


Due to global Semi-Conductor supply shortages and software issues, GM vehicles may not have some standard features and options. Please check with your local GMC dealer to confirm the vehicle’s specifications prior to purchase. Vehicles not equipped with Automatic Stop/Start will be less fuel efficient.

Sierra comes with:

  • Standard: 5-YEAR / 100,000 KM WARRANTY2
  • Optional: 2-YEAR EXTENDED WARRANTY AVAILABLE3

DENALI


KEY FEATURES

  • Standard 6.6L V8 Gas Engine with Allison® 10-Speed Automatic Transmission
  • 13.4" Diagonal Center Touch-Screen, 12.3" Diagonal Digital Driver Information Center and Available Multicolor 15" Diagonal Head-Up Display
  • Denali-Exclusive Authentic Open-Pore Wood, Patterned Aluminum Trim, and Forge Perforated Leather Seating Surfaces
  • Standard Wireless Apple CarPlay®4 and Wireless Android AutoTM5 Compatibility
  • Standard Adaptive Cruise Control
  • Spray-on Bedliner will have GMC Logo on back wall
  • Power Sunroof
  • Universal Home Remote
  • 3-Year OnStar Connect and Protect Plan1
  • OnStar Wi-Fi trial for 3GB/90 days (whichever comes first)


KEY FEATURES

  • Standard 6.6L V8 Gas Engine with Allison® 10-Speed Automatic Transmission
  • 13.4" Diagonal Center Touch-Screen, 12.3" Diagonal Digital Driver Information Center and Available Multicolor 15" Diagonal Head-Up Display
  • Denali-Exclusive Authentic Open-Pore Wood, Patterned Aluminum Trim, and Forge Perforated Leather Seating Surfaces
  • Standard Wireless Apple CarPlay®4 and Wireless Android AutoTM5 Compatibility
  • Standard Adaptive Cruise Control
  • Spray-on Bedliner will have GMC Logo on back wall
  • Power Sunroof
  • Universal Home Remote
  • 3-Year OnStar Connect and Protect Plan 1
  • OnStar Wi-Fi trial for 3GB/90 days (whichever comes first)



INTERIOR

Sierra HD Denali feature ultra-premium interiors with first-class amenities and the finest materials.

Denali Ultimate shown

PREMIUM MATERIAL

EMBROIDERED DENALI LOGO

Sierra HD Denali’s interior distinguishes itself with a level of craftsmanship that is the epitome of Professional Grade. This includes aluminum trim and chrome accents and authentic open-pore walnut wood detailing.

Sierra HD Denali features attractive embroidery on the front seats.




PREMIUM MATERIAL

Sierra HD Denali’s interior distinguishes itself with a level of craftsmanship that is the epitome of Professional Grade. This includes aluminum trim and chrome accents and authentic open-pore walnut wood detailing.

EMBROIDERED DENALI LOGO

Sierra HD Denali features attractive embroidery on the front seats.


EXTERIOR

Sierra Heavy Duty looks every inch the premium pulling machine.

NEW FRONT BUMPER, FASCIA AND REDESIGNED DENALI CHROME GRILLE

20" ULTRA-BRIGHT MACHINED WHEELS WITH BRIGHT CHROME INSERTS

NEW LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING WITH ANIMATED SEQUENCES

A bold, updated front end further refines Sierra HD Denali’s striking good looks

Sierra HD Denali stands out with available unique wheels on SRW models.

​New LED projector headlamps help enhance Sierra Heavy Duty’s bold exterior design.



POWER-RETRACTABLE ASSIST STEPS WITH LED PERIMETER LIGHTING

SIX-FUNCTION MULTIPROTM TAILGATE

This available feature includes textured step pads to help provide secure footing and a Deploy Running Board mode for car washes. Illuminated power assist steps available on Denali

Helping to make light work of almost any job, GMC’s powerfully innovative MultiPro™ Tailgate combines six convenient functions. 

NEW FRONT BUMPER, FASCIA AND REDESIGNED DENALI CHROME GRILLE

A bold, updated front end further refines Sierra HD Denali’s striking good looks

20" ULTRA-BRIGHT MACHINED WHEELS WITH BRIGHT CHROME INSERTS

Sierra HD Denali stands out with available unique wheels on SRW models.

NEW LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING WITH ANIMATED SEQUENCES

New LED projector headlamps help enhance Sierra Heavy Duty’s bold exterior design.

POWER-RETRACTABLE ASSIST STEPS WITH LED PERIMETER LIGHTING

This available feature includes textured step pads to help provide secure footing and a Deploy Running Board mode for car washes. Illuminated power assist steps available on Denali


SIX-FUNCTION MULTIPROTM TAILGATE

Helping to make light work of almost any job, GMC’s powerfully innovative MultiPro™ Tailgate combines six convenient functions.

TECHNOLOGY

Enjoy 3 years of the OnStar Connect and Protect Plan1. Experience seamless connectivity that makes every drive better over time with Google Built-In, 4G LTE Wi-Fi, Vehicle Mobile App and more.

Safety or driver-assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. Read the vehicle Owner’s Manual for important feature limitations and information.​

13.4" DIAGONAL CENTER TOUCH-SCREEN

12.3" DIAGONAL DIGITAL DRIVER INFORMATION CENTER

WIRELESS APPLE CARPLAY® AND WIRELESS ANDROID AUTOTM COMPATIBILITY

An available 13.4" diagonal tablet-style touch-screen is the customizable, high-tech centerpiece of the cabin.

Sierra Heavy Duty features an available 12.3" diagonal digital Driver Information Center. Control and customize important vehicle, driving and infotainment content with high-resolution clarity.

Connect your compatible smartphone to wireless Apple CarPlay®4 or wireless Android Auto5 compatibility for a more integrated in-vehicle experience.


NEXT-GENERATION GMC INFOTAINMENT SYSTEM WITH AVAILABLE GOOGLE BUILT-IN

UP TO 14 AVAILABLE CAMERA VIEWS INCLUDING ENHANCED TRANSPARENT TRAILER VIEW

Available with the next-generation GMC Infotainment System6 and Google built-in compatibility7, Sierra Heavy Duty offers a helpful, personalized and seamless way to enhance your in-vehicle experience.

Keep tabs on your truck and trailer with up to 14 available camera views,8 including HD Surround Vision and Bed View Camera, to help optimize the view around the truck and your compatible trailer, as well as the available industry-first transparent trailer view.

AVAILABLE CAMERA VIEWS8 INCLUDE:

  • Enhanced Transparent Trailer View8
  • Hitch View
  • Cargo Bed View (With Zoom View and Hitch Guidelines)
  • Front Camera View
  • Rear Camera View
  • Surround View
  • Front Top-Down View
  • Rear Top-Down View
  • Front Side View
  • Rear Side View8 (With Trailer Biasing)
  • Rear Trailer View8 (With Guidelines and Trailer Angle Indicator)
  • Inside Trailer View8
  • Picture-In-Picture View8
  • Rear Camera Mirror8

  • 13.4" DIAGONAL CENTER TOUCH-SCREEN

    An available 13.4" diagonal tablet-style touch-screen is the customizable, high-tech centerpiece of the cabin.


    12.3" DIAGONAL DIGITAL DRIVER INFORMATION CENTER

    Sierra Heavy Duty features an available 12.3" diagonal digital Driver Information Center. Control and customize important vehicle, driving and infotainment content with high-resolution clarity.

    WIRELESS APPLE CARPLAY® AND WIRELESS ANDROID AUTOTM COMPATIBILITY

    Connect your compatible smartphone to wireless Apple CarPlay®4 or wireless Android Auto5 compatibility for a more integrated in-vehicle experience.

    NEXT-GENERATION GMC INFOTAINMENT SYSTEM WITH AVAILABLE GOOGLE BUILT-IN

    Available with the next-generation GMC Infotainment System6 and Google built-in compatibility7, Sierra Heavy Duty offers a helpful, personalized and seamless way to enhance your in-vehicle experience.


    UP TO 14 AVAILABLE CAMERA VIEWS INCLUDING ENHANCED TRANSPARENT TRAILER VIEW

    Keep tabs on your truck and trailer with up to 14 available camera views,8 including HD Surround Vision and Bed View Camera, to help optimize the view around the truck and your compatible trailer, as well as the available industry-first transparent trailer view.

    AVAILABLE CAMERA VIEWS8 INCLUDE:

  • Enhanced Transparent Trailer View8
  • Hitch View
  • Cargo Bed View (With Zoom View and Hitch Guidelines)
  • Front Camera View
  • Rear Camera View
  • Surround View
  • Front Top-Down View
  • Rear Top-Down View
  • Front Side View
  • Rear Side View8 (With Trailer Biasing)
  • Rear Trailer View8 (With Guidelines and Trailer Angle Indicator)
  • Inside Trailer View8
  • Picture-In-Picture View8
  • Rear Camera Mirror8
  • CAPABILITY

    Sierra Heavy Duty is strong and smart, offering an advanced suite of available intelligent trailering technologies to help you stay in command.


    OFFERS THE MOST TRAILERING9 ASSISTANCE TECHNOLOGIES

    AVAILABLE SIX-FUNCTION MULTIPRO TAILGATE

    EXPERIENCE V8 TOWING PROWESS

    Available advanced tech allows you to trailer with enhanced confidence and improved camera views.8 Additionally, ProgradeTM Trailering Tech is an available advanced suite of intelligent technologies which help streamline the hitching and towing process with integrated tools that helps enhance your sense of safety, confidence, and visibility.

    The powerfully innovative available MultiProTM Tailgate combines six convenient functions that help improve loading, unloading and accessing the cargo bed to make light work of almost any job.

    Sierra Heavy Duty’s standard 6.6L V8 gas engine is now paired with the Allison 10-speed automatic transmission. This allows the engine to be held closer to its peak power band, optimizing power, torque and efficiency.

    SIERRA HEAVY DUTY TRAILERING TECH OFFERS:

    • Trailer Tire Pressure8 and Temperature Monitoring
    • Trailer Side Blind Zone Alert8
    • Diesel Exhaust Brake
    • Standard Adaptive Cruise Control8 With Trailering
    • Trailer Sway Control
    • Trailer Length Indicator8
    • Trailer Brake Controller
    • Trailer Angle Indicator with Jack-Knife Alert8
    • Gross Combined Weight (GCW) Alert8
    • Trailer Light Test
    • Trailer Theft Detection
    • Smart Trailer Integration with the Available myGMC Mobile App8
    • Maintenance Reminders
    • Auto Electric Parking Brake
    • Create and Customize Trailer Profiles
    • Tow/Haul Mode Reminder
    • Predeparture Checklists
    • Available myGMC Mobile App8 with Trailering
    • Tow/Haul Mode
    • Trailering Mirrors

    MULTIPRO TAILGATE
    STANDARD ON SLE 
    AVAILABLE ON PRO

    The six-function GMC MultiPro Tailgate helps improve loading, unloading, and accessing the cargo box.

    • Open and close the primary gate using the key fob’s power release
    • Load stop to help prevent items from sliding out of the bed
    • Fold-down inner gate for easy access when loading and unloading
    • Inner gate can fold into a full-width step, capable of holding up to 170 Kg.
    • Inner gate load stop to help prevent second-tier items from sliding out of the bed
    • Inner gate can be disabled to prevent it from being opened when a hitch or other equipment is installed
    • The opened inner gate provides a work surface as well as second-tier loading

    6.6L V8 GAS ENGINE WITH ALLISON® 10-SPEED AUTOMATIC TRANSMISSION

    • 401 hp
    • 629 Nm of Torque
    • 10.8:1 Compression Ratio


    OFFERS THE MOST TRAILERING9 ASSISTANCE TECHNOLOGIES

    Available advanced tech allows you to trailer with enhanced confidence and improved camera views.8 Additionally, ProgradeTM Trailering Tech is an available advanced suite of intelligent technologies which help streamline the hitching and towing process with integrated tools that helps enhance your sense of safety, confidence, and visibility.

    SIERRA HEAVY DUTY TRAILERING TECH OFFERS:

    • Trailer Tire Pressure8 and Temperature Monitoring
    • Trailer Side Blind Zone Alert8
    • Diesel Exhaust Brake
    • Standard Adaptive Cruise Control8 With Trailering
    • Trailer Sway Control
    • Trailer Length Indicator8
    • Trailer Brake Controller
    • Trailer Angle Indicator with Jack-Knife Alert8
    • Gross Combined Weight (GCW) Alert8
    • Trailer Light Test
    • Trailer Theft Detection
    • Smart Trailer Integration with the Available myGMC Mobile App8
    • Maintenance Reminders
    • Auto Electric Parking Brake
    • Create and Customize Trailer Profiles
    • Tow/Haul Mode Reminder
    • Predeparture Checklists
    • Available myGMC Mobile App8 with Trailering
    • Tow/Haul Mode
    • Trailering Mirrors



    AVAILABLE SIX-FUNCTION MULTIPRO TAILGATE

    The powerfully innovative available MultiProTM Tailgate combines six convenient functions that help improve loading, unloading and accessing the cargo bed to make light work of almost any job.

    MULTIPRO TAILGATE
    STANDARD ON SLE 
    AVAILABLE ON PRO

    The six-function GMC MultiPro Tailgate helps improve loading, unloading, and accessing the cargo box.

    • Open and close the primary gate using the key fob’s power release
    • Load stop to help prevent items from sliding out of the bed
    • Fold-down inner gate for easy access when loading and unloading
    • Inner gate can fold into a full-width step, capable of holding up to 170 Kg.
    • Inner gate load stop to help prevent second-tier items from sliding out of the bed
    • Inner gate can be disabled to prevent it from being opened when a hitch or other equipment is installed
    • The opened inner gate provides a work surface as well as second-tier loading



    EXPERIENCE V8 TOWING PROWESS

    Sierra Heavy Duty’s standard 6.6L V8 gas engine is now paired with the Allison 10-speed automatic transmission. This allows the engine to be held closer to its peak power band, optimizing power, torque and efficiency.

    6.6L V8 GAS ENGINE WITH ALLISON® 10-SPEED AUTOMATIC TRANSMISSION

    • 401 hp
    • 629 Nm of Torque
    • 10.8:1 Compression Ratio


    SAFETY

    SIERRA HD PRO SAFETY8

    Every Sierra Heavy Duty includes active safety and driver-assistance technologies that help while driving and trailering. Sierra HD Pro Safety includes:

    • Forward Collision Alert
    • Following Distance Indicator
    • Front Pedestrian Braking
    • IntelliBeam
    • Lane Departure Warning
    • Buckle to Drive
    • Automatic Emergency Braking
    • Advanced safety and 24/7 Human assistance powered by OnStar10

    SPEC HIGHLIGHTS

    2500 CREW CAB

    GMC Sierra 2500 Heavy Duty truck comes in 4WD Crew Cab models with a 2.057 m standard bed or available 2.438 m long bed.

    MAX 5TH WHEEL/GOOSENECK RATING
    8,392 KG
    MAX CONVENTIONAL TRAILERING12
    8,392 KG
    MAX GCWR11
    1,247 KG
    GROUND CLEARANCE
    256-257 mm
    WHEELBASE
    4.037–4.369 mm
    CARGO VOLUME13
    1.968–2.364 Liters
    FRONT/REAR TREAD WIDTH
    SRW: 1.732 mm/1.736 mm

    2500 REGULAR CAB

    GMC Sierra 2500 Heavy Duty truck comes in 4WD Regular Cab models with an 2.438 m long bed.

    MAX 5TH WHEEL/GOOSENECK RATING
    8,392 KG
    MAX CONVENTIONAL TRAILERING12
    6,577 KG
    MAX GCWR11
    11,793 KG
    GROUND CLEARANCE
    259 mm
    WHEELBASE
    3.595 mm
    CARGO VOLUME13
    2.364 Liters
    FRONT/REAR TREAD WIDTH
    1.732 mm /1.736 mm

    3500 CREW CAB

    GMC Sierra 3500 Heavy Duty truck comes in 2WD and 4WD Crew Cab with either a 2.057 m standard bed or available 2.438 m long bed. Long bed is available with a Single Rear Wheel or Dual Rear Wheel configuration.

    3500 REGULAR CAB

    GMC Sierra 3500 Heavy Duty truck comes in 4WD Regular Cab with an 8' 2.438 m long bed Single Rear Wheel or Dual Rear Wheel configuration.

    MAX 5TH WHEEL/GOOSENECK RATING
    8,269 KG
    MAX CONVENTIONAL TRAILERING12
    8,074 KG
    MAX GCWR11

    11,694 KG

    GROUND CLEARANCE

    283-284 mm SRW
    264 mm DRW

    WHEELBASE

    4,369 mm

    CARGO VOLUME13

    2,365 Liters

    FRONT/REAR TREAD WIDTH
    SINGLE REAR WHEEL: 1.729/1.734m
    DUAL REAR WHEEL: 1.74/1.91m

    MAX 5TH WHEEL/GOOSENECK RATING

    14,515 KG/16,330 KG8,482 kg

    MAX CONVENTIONAL TRAILERING12

    9,072 -8,346 KG

    MAX GCWR11

    3500 Regular Cab - 19,912.71 KG
    2500 Regular Cab - 11,793 KG

    GROUND CLEARANCE

    28.5 cm285 mm SRW / 26.6 cm266 mm DRW

    WHEELBASE
    359.54 cm / 3,569 mm
    CARGO VOLUME
    2.365 Cu. m.2,367 Liters 13
    FRONT/REAR TREAD WIDTH
    174.14 cm/190.47 cm

    2500 CREW CAB

    GMC Sierra 2500 Heavy Duty truck comes in 4WD Crew Cab models with a 2.057 m standard bed or available 2.438 m long bed.

    MAX 5TH WHEEL/GOOSENECK RATING
    8,392 KG
    MAX CONVENTIONAL TRAILERING12
    8,392 KG
    MAX GCWR11
    1,247 KG
    GROUND CLEARANCE
    256-257 mm
    WHEELBASE
    4.037–4.369 mm
    CARGO VOLUME13
    1.968–2.364 Liters
    FRONT/REAR TREAD WIDTH
    SRW: 1.732 mm/1.736 mm

    2500 REGULAR CAB

    GMC Sierra 2500 Heavy Duty truck comes in 4WD Regular Cab models with an 2.438 m long bed.

    MAX 5TH WHEEL/GOOSENECK RATING
    8,392 KG
    MAX CONVENTIONAL TRAILERING12
    6,577 KG
    MAX GCWR11
    11,793 KG
    GROUND CLEARANCE
    259 mm
    WHEELBASE
    3.595 mm
    CARGO VOLUME13
    2.364 Liters
    FRONT/REAR TREAD WIDTH
    1.732 mm /1.736 mm

    3500 CREW CAB

    GMC Sierra 3500 Heavy Duty truck comes in 2WD and 4WD Crew Cab with either a 2.057 m standard bed or available 2.438 m long bed. Long bed is available with a Single Rear Wheel or Dual Rear Wheel configuration

    MAX 5TH WHEEL/GOOSENECK RATING
    8,269 KG
    MAX CONVENTIONAL TRAILERING12
    8,074 KG
    MAX GCWR11

    11,694 KG

    GROUND CLEARANCE

    283-284 mm SRW
    264 mm DRW

    WHEELBASE

    4,369 mm

    CARGO VOLUME13

    2,365 Liters

    FRONT/REAR TREAD WIDTH
    SINGLE REAR WHEEL: 1.729/1.734m
    DUAL REAR WHEEL: 1.74/1.91m

    3500 REGULAR CAB

    GMC Sierra 3500 Heavy Duty truck comes in 4WD Regular Cab with an 8' 2.438 m long bed Single Rear Wheel or Dual Rear Wheel configuration.

    MAX 5TH WHEEL/GOOSENECK RATING

    14,515 KG/16,330 KG8,482 kg

    MAX CONVENTIONAL TRAILERING12

    9,072 -8,346 KG

    MAX GCWR11

    3500 Regular Cab - 19,912.71 KG
    2500 Regular Cab - 11,793 KG

    GROUND CLEARANCE

    28.5 cm285 mm SRW / 26.6 cm266 mm DRW

    WHEELBASE
    359.54 cm / 3,569 mm
    CARGO VOLUME
    2.365 Cu. m.2,367 Liters 13
    FRONT/REAR TREAD WIDTH
    174.14 cm/190.47 cm


    DISCLAIMERS


    1. OnStar Connected Services and Wi-Fi plans are available in select countries only. Requires an equipped vehicle, active trial or subscription and data plan for Wi-Fi. See onstararabia.com for details.

    2. Whichever comes first. Terms and conditions apply.

    3. Terms and conditions apply.

    4. Vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay, iPhone, Siri and Apple Music are trademarks of Apple Inc., registered in the U.S. and other countries.

    5. Vehicle user interface is a product of Google and its terms and privacy statements apply. Requires the Android Auto app on Google Play and a compatible Android smartphone. Data planrates apply. You can check which smartphones are compatible at g.co/androidauto/requirements.

    6. GMC Infotainment System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.

    7. Google built-in services are subject to limitations, and availability may vary by vehicle, infotainment system and location. Certain Google actions and functionalities may require account linking. User terms and privacy statement apply. Google, Google Play and Google Maps are trademarks of Google LLC.

    8. Safety features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. The driver should remain attentive to traffic, surroundings and road conditions at all times. Read the Owner’s Manual for more important safety information.

    9. Requires Max Trailering Package. Trailering capacity may be limited by the tow vehicle’s ability to carry trailer tongue weight. The addition of trailer tongue weight cannot cause vehicle weights to exceed Rear Gross Axle Weight Rating (RGAWR) or Gross Vehicle Weight Rating (GVWR).

    10. Requires equipped vehicle and paid OnStar plan. OnStar plans not available in all countries. See onstararabia.com for equipped vehicles, service availability and system limitations. Message and data rates may apply. Requires contact method on file and enrollment to receive alerts. Not all issues will deliver alerts. See https://www.onstararabia.com/en/connected-services for details.

    11. Gross Combination Weight Rating (GCWR)

    12. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

    13. Cargo and load capacity are limited by weight and distribution.



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