2012 GMC Sierra 2500 Denali HD

From leather appointed seating surfaces to the polished wood tones and brushed metal accents, Denali gives the Sierra HD series a more extensive list of standard features, Denali HD gives you the luxury of the boardroom with the power to match.

Download 2012 GMC Sierra 2500 Denali HD Brochure





Crew Cab Standard Box: 2500HD (2WD/4WD) and 3500HD Single Rear Wheel (SRW) (2WD/4WD)
Crew Cab Long Box: 3500HD Dual Rear Wheel (DRW) (2WD/4WD)


  2500HD 3500HD
Cargo volume (cu. ft.)1 Standard Box/Long Box 60.7/75.5 60.7/75.5
Payload (lbs.)2 3,193 6,055
Fuel tank (gal. approx.) 36 36
Seating 5 5
Maximum conventional trailer weight rating (lbs.)3 13,000 18,000
Maximum fifth-wheel trailer weight rating (lbs.)3 16,500 22,600
GVWR (lbs.)4 10,000 13,000


EZ Lift tailgate
Denali-exclusive grille
Halogen foglamps
Rear-vision camera system
Ultrasonic Rear Parking Assist


Engine: Vortec 6.0L Variable Valve Timing SFI V8 with E855 capability (with Wideside pickup box only)
Differential: Eaton® automatic locking rear
Heavy-duty trailering equipment: trailer hitch platform; seven-wire harness with independent fused trailer circuits mated to a seven-way sealed connector; instrument panel jumper wiring harness for electric trailer brake controller; and one-way sealed connector for center, high-mounted stop/brake lamp
Skid Plate Package: frame-mounted shields to protect the front underbody, oil pan, differential case and transfer case
Transmission: six-speed automatic, with overdrive and Tow/Haul mode


Duramax 6.6L Turbo-Diesel V8
Transmission: Allison® 1000 six-speed automatic, electronically controlled with overdrive, electronic engine grade braking and Tow/Haul mode


Air bags:6 driver and right-front passenger, frontal, with Passenger Sensing System; head-curtain side-impact, front and rear outboard seating positions, with rollover sensor; and seat-mounted thorax side-impact, front outboard seating positions (SRW models only)
Four-wheel antilock disc brakes
StabiliTrak® Electronic Stability Control System with Proactive Roll Avoidance, electronic trailer sway control, Intelligent Brake Assist and Hill Start Assist (SRW models only)
Tire Pressure Monitor (excludes spare tire) (2500 models only)
OnStar®:7 Directions & Connections® Plan with Turn-by-Turn Navigation for the first six months


Bluetooth® wireless technology8 for select phones
Heated steering wheel
Power-adjustable pedals
Rearview auto-dimming mirror with rear-vision camera system
Remote vehicle starter system: includes Remote Keyless Entry9


Front bucket seats: include 12-way power adjusters, power-adjustable lumbar support, two-position driver memory and adjustable outboard head restraints
Heated and cooled seats: driver and front passenger cushions and seatbacks10


Six-disc CD/MP3 player, USB port11 and auxiliary audio input jack
Bose® speaker system with subwoofer in center console
SiriusXM Radio:12 with three trial months


CD/MP3 player, HDD-based navigation13 with voice prompts, RDS,14 USB port11 and auxiliary audio input jack
Entertainment system: rear-seat DVD player with LCD display, wireless headphones and remote control
SiriusXM NavTraffic:15 with three trial months


17-inch, polished forged-aluminum (DRW models only)
18-inch, polished forged-aluminum (SRW models only)


20-inch, polished forged-aluminum16 (2500HD models only)


4x4 Chrome Decal Premium All-Weather Floor Mats
Bed Rail Protectors Six-Inch Chrome Tubular Assist Steps
Bedliner Z71 Chrome Decal
Hard, Tri-Folding Tonneau Cover  
  • 1 Cargo and load capacity limited by weight and distribution.
  • 2 Maximum payload capacity includes weight of driver, passengers, optional equipment and cargo.
  • 3 Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. The weight of other optional equipment, passengers and cargo will reduce the maximum trailer weight your vehicle can tow. See your GMC dealer for additional details.
  • 4 Gross Vehicle Weight Rating. When properly equipped; includes weight of vehicle, driver, passengers, cargo and optional equipment.
  • 5 E85 is a combination of 85% ethanol and 15% gasoline. Go to gm.com/biofuels to see if there is an E85 fuel station near you.
  • 6 Always use safety belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.
  • 7 Visit onstar.com for coverage map, details and system limitations. Services vary by model and conditions.
  • 8 Visit gm.com/bluetooth to find out which phones are compatible with the vehicle.
  • 9 Remote Keyless Entry does not lock/unlock tailgate.
  • 10 Requires available perforated leather-appointed seating.
  • 11 Not compatible with all devices.
  • 12 Requires a subscription sold separately by SiriusXM after three-month trial. Available only in the 48 contiguous United States and Washington, D.C. Visit siriusxm.com for details.
  • 13 Navigation map disc will either cover Alaska and the 48 contiguous states or Hawaii, depending on the sales state.
  • 14 RDS functions only where stations broadcast RDS information.
  • 15 Requires available navigation radio. Requires a subscription sold separately by SiriusXM after trial period. Available only in select markets. If you decide to continue SiriusXM service at the end of any complimentary trial, the chosen plan will automatically renew and bill at then-current rates unless you call 1-800-967-2346 to cancel. Subscriptions governed by SiriusXM Customer Agreement at siriusxm.com. For more information, see siriusxm.com/navtraffic.
  • 16 Use only GM-approved tire and wheel combinations. Unapproved combinations may change the vehicle's performance characteristics. For important tire and wheel information, go to gmaccessorieszone.com or see your dealer for details.

  • GM, the GM Logo, GMC, the GMC Logo, and the slogans, emblems, vehicle model names, vehicle body designs and other marks appearing in this document are the trademarks and/or service marks of General Motors, its subsidiaries, affiliates or licensors. Bose is a registered trademark of the Bose Corp. The Bluetooth word mark is a registered trademark owned by Bluetooth SIG, Inc. and any use of such mark by GMC is under license. Eaton is a registered trademark of Eaton Corporation. SiriusXM and all related marks and logos are trademarks of SiriusXM Radio Inc. and its subsidiaries. ©2012 OnStar. All rights reserved. ©2012 General Motors. All rights reserved. GM reserves the right to make changes at any time and without notice in prices, colors, materials, equipment, specifications, models and availability.