2015 GMC Sierra SLT
GMC Sierra Details
Automatic
V8, 6.6L
Summit White
4WD
Diesel
157,963 Miles
Jet Black
UT609457
1GT12ZE8XFF609457
2500
Leather
SLT
About This 2015 GMC Sierra
Vehicle Details
Ready for tough jobs and long hauls, this 2015 GMC Sierra 2500 SLT 4WD packs a powerful 6.6L V8 diesel that delivers exceptional torque, towing capacity, and highway efficiency. Located in Havre, MT, this heavy-duty GMC Sierra is built for Montana roads with an Off-Road Package that adds rugged capability and confidence on rough terrain. The SLT trim brings upscale comfort with premium leather seats and a heated steering wheel, while the BOSE stereo fills the cabin with rich sound for every drive. Practical features include remote start for quick warmups on cold mornings, rear parking sensors for safer backing in tight spots, and a bed prepared for serious hauling. Whether you're towing equipment, navigating snow-covered backroads, or commuting in style, this GMC Sierra balances work-ready durability with refined interior appointments. This 2015 GMC Sierra 2500 is competitively priced and advertised as the best price in the area — a smart buy for buyers seeking dependable diesel performance and rugged capability without paying new?truck premiums. Well-maintained and ready to work, it's a prime choice for ranchers, contractors, and truck enthusiasts who demand strength, comfort, and technology. Stop by in Havre, MT to experience the robust 6.6L diesel V8 and features like the Off-Road Package, BOSE audio, leather seating, remote start, and rear parking sensors. Exceptional value — the best price on a capable GMC Sierra 2502—2500 SLT awaits.
Equipment
See what's behind you with the back up camera on the vehicle. The vehicle offers Automatic Climate Control for personalized comfort. The leather seats are soft and supportive on this 2015 GMC Sierra 2500. This unit has satellite radio capabilities. This vehicle has a clean CARFAX vehicle history report. This 3/4 ton pickup is equipped with the latest generation of XM/Sirius Radio. This vehicle features steering wheel audio controls. An off-road package is installed on this GMC Sierra so you are ready for your four-wheeling best. Engulf yourself with the crystal clear sound of a BOSE sound system in this 3/4 ton pickup. The state of the art park assist system will guide you easily into any spot. Start this 2015 GMC Sierra 2500 from inside with remote start. This 3/4 ton pickup features a hands-free Bluetooth phone system. Heated seats for those cold winter days are included in this vehicle.
Packages
Duramax Plus Package: AM/FM/SiriusXM Radio with Navigation; BOSE Sound with 7 Speaker System; Ultrasonic Front and Rear Park Assist; Duramax 6.6L Turbo Diesel V8 Engine; Allison 1000 6-Speed Automatic Transmission with Overdrive. SLT Decor: LED Cargo Box Lighting; EZ-Lift and Lower Tailgate; Chrome Door Handles; Rear Vision Camera with Dynamic Guide Lines; Rear 60/40 Folding Bench Seat (folds Up); Leather Appointed Seat Trim; Remote Vehicle Starter System; Electric Rear-Window Defogger; AM/FM/SiriusXM Radio; High-Capacity Air Cleaner; 4.2" Diagonal Color Display Driver Info Center; Heavy-Duty Trailering Equipment; 110-Volt AC Power Outlet; Front Halogen Fog Lamps; Steering Wheel Audio Controls; Universal Home Remote; Color-Keyed Carpeting Floor Covering; Power Windows with Driver Express Up and Down; OnStar 6 Months Directions/Connections Plan; Remote Keyless Entry; LT265/70R18E AS BW Tires; Electronic Shift Transfer Case; Single Slot CD/MP3 Player; Deep-Tinted Glass; 18" Chromed Aluminum Wheels; Dual-Zone Automatic Climate Control; Heated Power-Adjustable Outside Mirrors; Chrome Mirror Caps; Leather-Wrapped Steering Wheel; Manual Tilt-Wheel/telescoping Steering Column; Driver and Front Passenger Visors; OnStar 4G LTE Wi-Fi Hotspot; Front 40/20/40 Split Bench Seat; Auto Dimming Inside Rearview Mirror; Power-Adjustable Pedals For Accelerator and Brake; Rear Wheelhouse Liners; Chrome Bodyside Moldings. BOSE Sound with 7 Speaker System. AM/FM/SiriusXM Radio with Navigation. Spray-On Pickup Box Bed Liner. Ultrasonic Front and Rear Park Assist. Rear Underseat Storage. Front and Rear Carpeted Floor Mats. 3.73 Rear Axle Ratio. Manual Tilt-Wheel/telescoping Steering Column. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
Additional Information
**Vehicle Options listed are when the unit was originally built. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.
Ready for tough jobs and long hauls, this 2015 GMC Sierra 2500 SLT 4WD packs a powerful 6.6L V8 diesel that delivers exceptional torque, towing capacity, and highway efficiency. Located in Havre, MT, this heavy-duty GMC Sierra is built for Montana roads with an Off-Road Package that adds rugged capability and confidence on rough terrain. The SLT trim brings upscale comfort with premium leather seats and a heated steering wheel, while the BOSE stereo fills the cabin with rich sound for every drive. Practical features include remote start for quick warmups on cold mornings, rear parking sensors for safer backing in tight spots, and a bed prepared for serious hauling. Whether you're towing equipment, navigating snow-covered backroads, or commuting in style, this GMC Sierra balances work-ready durability with refined interior appointments. This 2015 GMC Sierra 2500 is competitively priced and advertised as the best price in the area — a smart buy for buyers seeking dependable diesel performance and rugged capability without paying new?truck premiums. Well-maintained and ready to work, it's a prime choice for ranchers, contractors, and truck enthusiasts who demand strength, comfort, and technology. Stop by in Havre, MT to experience the robust 6.6L diesel V8 and features like the Off-Road Package, BOSE audio, leather seating, remote start, and rear parking sensors. Exceptional value — the best price on a capable GMC Sierra 2502—2500 SLT awaits.
Equipment
See what's behind you with the back up camera on the vehicle. The vehicle offers Automatic Climate Control for personalized comfort. The leather seats are soft and supportive on this 2015 GMC Sierra 2500. This unit has satellite radio capabilities. This vehicle has a clean CARFAX vehicle history report. This 3/4 ton pickup is equipped with the latest generation of XM/Sirius Radio. This vehicle features steering wheel audio controls. An off-road package is installed on this GMC Sierra so you are ready for your four-wheeling best. Engulf yourself with the crystal clear sound of a BOSE sound system in this 3/4 ton pickup. The state of the art park assist system will guide you easily into any spot. Start this 2015 GMC Sierra 2500 from inside with remote start. This 3/4 ton pickup features a hands-free Bluetooth phone system. Heated seats for those cold winter days are included in this vehicle.
Packages
Duramax Plus Package: AM/FM/SiriusXM Radio with Navigation; BOSE Sound with 7 Speaker System; Ultrasonic Front and Rear Park Assist; Duramax 6.6L Turbo Diesel V8 Engine; Allison 1000 6-Speed Automatic Transmission with Overdrive. SLT Decor: LED Cargo Box Lighting; EZ-Lift and Lower Tailgate; Chrome Door Handles; Rear Vision Camera with Dynamic Guide Lines; Rear 60/40 Folding Bench Seat (folds Up); Leather Appointed Seat Trim; Remote Vehicle Starter System; Electric Rear-Window Defogger; AM/FM/SiriusXM Radio; High-Capacity Air Cleaner; 4.2" Diagonal Color Display Driver Info Center; Heavy-Duty Trailering Equipment; 110-Volt AC Power Outlet; Front Halogen Fog Lamps; Steering Wheel Audio Controls; Universal Home Remote; Color-Keyed Carpeting Floor Covering; Power Windows with Driver Express Up and Down; OnStar 6 Months Directions/Connections Plan; Remote Keyless Entry; LT265/70R18E AS BW Tires; Electronic Shift Transfer Case; Single Slot CD/MP3 Player; Deep-Tinted Glass; 18" Chromed Aluminum Wheels; Dual-Zone Automatic Climate Control; Heated Power-Adjustable Outside Mirrors; Chrome Mirror Caps; Leather-Wrapped Steering Wheel; Manual Tilt-Wheel/telescoping Steering Column; Driver and Front Passenger Visors; OnStar 4G LTE Wi-Fi Hotspot; Front 40/20/40 Split Bench Seat; Auto Dimming Inside Rearview Mirror; Power-Adjustable Pedals For Accelerator and Brake; Rear Wheelhouse Liners; Chrome Bodyside Moldings. BOSE Sound with 7 Speaker System. AM/FM/SiriusXM Radio with Navigation. Spray-On Pickup Box Bed Liner. Ultrasonic Front and Rear Park Assist. Rear Underseat Storage. Front and Rear Carpeted Floor Mats. 3.73 Rear Axle Ratio. Manual Tilt-Wheel/telescoping Steering Column. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
Additional Information
**Vehicle Options listed are when the unit was originally built. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.
Features & Options
- 6.6L V8 Turbo Diesel Engine
- Aluminum/Alloy Wheels
- Automatic Climate Control
- Bluetooth Connection
- Bose Premium Stereo
- Fog Lights
- Heated Exterior Mirrors
- Heated Front Seats
- Leather Seats
- Locking/Limited Slip Differential
- Navigation System
- Power Adjustable Mirrors
- Power Driver''s Seat
- Power Passenger Seat
- Rear Parking Sensors
- Remote Engine Starter
- Univ Garage Door Opener
- V8; Turbo Dsl; 6.6L
- Auto; 6-Spd Allison OD
- 4WD
- Z71 Off-Road Pkg
- Duramax Plus Pkg
- Hill Descent Control
- Hill Start Assist Control
- Traction Control
- StabiliTrak
- ABS (4-Wheel)
- Anti-Theft System
- Keyless Entry
- Keyless Start
- Air Conditioning
- Power Windows
- Power Door Locks
- Cruise Control
- Power Steering
- Tilt Wheel
- AM/FM Stereo
- CD/MP3 (Single Disc)
- Premium Sound
- SiriusXM Satellite
- Bluetooth Wireless
- OnStar
- Backup Camera
- Dual Air Bags
- Heated Seats
- Dual Power Seats
- Leather
- Daytime Running Lights
- LED Headlamps
- Towing Pkg
- Alloy Wheels
- Duramax Plus Package: AM/FM/SiriusXM Radio with Navigation; BOSE Sound with 7 Speaker System; Ultrasonic Front and Rear Park Assist; Duramax 6.6L Turbo Diesel V8 Engine; Allison 1000 6-Speed Automatic Transmission with Overdrive
- SLT Decor: LED Cargo Box Lighting; EZ-Lift and Lower Tailgate; Chrome Door Handles; Rear Vision Camera with Dynamic Guide Lines; Rear 60/40 Folding Bench Seat (folds Up); Leather Appointed Seat Trim; Remote Vehicle Starter System; Electric Rear-Window Defogger; AM/FM/SiriusXM Radio; High-Capacity Air Cleaner; 4.2" Diagonal Color Display Driver Info Center; Heavy-Duty Trailering Equipment; 110-Volt AC Power Outlet; Front Halogen Fog Lamps; Steering Wheel Audio Controls; Universal Home Remote; Color-Keyed Carpeting Floor Covering; Power Windows with Driver Express Up and Down; OnStar 6 Months Directions/Connections Plan; Remote Keyless Entry; LT265/70R18E AS BW Tires; Electronic Shift Transfer Case; Single Slot CD/MP3 Player; Deep-Tinted Glass; 18" Chromed Aluminum Wheels; Dual-Zone Automatic Climate Control; Heated Power-Adjustable Outside Mirrors; Chrome Mirror Caps; Leather-Wrapped Steering Wheel; Manual Tilt-Wheel/telescoping Steering Column; Driver and Front Passenger Visors; OnStar 4G LTE Wi-Fi Hotspot; Front 40/20/40 Split Bench Seat; Auto Dimming Inside Rearview Mirror; Power-Adjustable Pedals For Accelerator and Brake; Rear Wheelhouse Liners; Chrome Bodyside Moldings
- BOSE Sound with 7 Speaker System
- AM/FM/SiriusXM Radio with Navigation
- Spray-On Pickup Box Bed Liner
- Ultrasonic Front and Rear Park Assist
- Rear Underseat Storage
- Front and Rear Carpeted Floor Mats
- 3.73 Rear Axle Ratio
- Manual Tilt-Wheel/telescoping Steering Column
- OnStar 4G LTE mobile hotspot internet access
- Rear mounted camera
- Brake assist system
- Cruise control with steering wheel mounted controls
- Integrated navigation system with voice activation
- Keyfob remote start
- Heated driver and front passenger seats
- Leather front seat upholstery
- Primary monitor touchscreen
- Driver seat power reclining
- lumbar support
- cushion tilt
- fore/aft control and height adjustable control
- AutoTrac part-time 4WD
- Duramax 6.6L V-8 diesel direct injection
- intercooled turbo
- diesel
- engine with 397HP
- Duramax 6.6L V-8
- Mechanical
- Vehicle tracker with vehicle slowdown
- Wireless audio streaming
- Dual-zone front climate control
- Immobilizer
- Bose speakers
- OnStar Directions & Connections vehicle integrated emergency SOS system
- Bluetooth handsfree wireless device connectivity
- OnStar RemoteLink smart device app link
- Trailer brake controller
- Trailer sway control
- External memory control
- Internet radio capability
- Electronic stability control system with anti-roll
- Hill start assist
- Automatic climate control
- UltraSonic front and rear parking sensors
- 3 12V power outlets
- Front fog lights
- Leather and metal-look steering wheel
- EZ Lift
- EZ Lower
- Manual rear child safety door locks
- Heated driver and passenger side door mirrors
- Auto-dimming driver side mirror
- Power folding door mirrors
- Manual tilting steering wheel
- Manual telescopic steering wheel
- Power adjustable pedals
- 18 x 8-inch front and rear chrome aluminum wheels
- LT265/70SR18 AS BSW front and rear tires
- 6 airbags
- Driver front impact airbag
- Seat mounted side impact driver airbag
- Curtain first and second-row overhead airbags
- Passenger front impact airbag
- Seat mounted side impact front passenger airbag
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2015 GMC Sierra 2500 HD Denali Review
When choosing the right heavy duty truck for you a lot of the decision making centers around the engine and not so much the type of nuanced leather appointed front seats it may have, but those features now come into play in the new 2015 GMC Sierra Denali HD.GMC’s _- and 1-ton heavy duty trucks were last redesigned for the 2011 model year at which point a luxuriously trimmed Denali model debuted, offering a more premium tool in this workhorse segment. And now, major updates greet the 2015 models with all-new exterior styling featuring better aerodynamics and improved cooling, a modernized interior carried forward from the Sierra 1500, and a host of smart features to make towing easier on the truck as well as the driver.
Sierra HD models are offered in regular cab, the new double cab and crew cab styles, in either 2 or 4-wheel drive, matched with either a 6’6” or 8’ box and the 3500 grade can be ordered as a dually. But this top-of-the-line 2500 Denali model comes exclusively in the incredibly spacious Crew Cab configuration with the standard-sized box.
Owners can keep the standard gasoline fed 6.0-liter V8 or upgrade to this 6.6-liter Duramax diesel at a significant cost of $8,588. It comes bundled with an Allison 6-speed automatic transmission, a less aggressive rear axle ratio and an engine block heater. Known for their bullet-proof reliability, better mileage and turbo induced prodigious levels of torque, diesel engines and their associated clatter are like a badge of honor in this segment. But a reality check shows that it’s the gas engine that provides greater maximum payload capacity and equal trailer towing in addition to providing similar mileage – I averaged around 14mpg for the week.
At the hitch, this rig can tow 13,000 pounds and you can fill-up the bed with over 2,500 pounds of payload and with a 36 gallon fuel tank it’s possible to drive over 600 miles between fill-ups.
The diesel flaunts its trailering advantage when using a fifth-wheel by permitting up to 17,100 pounds. New for 2015 is a system that integrates cruise control, auto grade braking and an exhaust brake for ultimate driver confidence while towing. And though it’s not geared to be a street truck, I’d sure like to feel more energy from this big engine even if it is lugging around over 3 _ tons.
The most surprising thing about this truck is how sluggish it feels. I know; it’s a big, heavy duty machine. But 765 pound feet of torque has never felt so lifeless. The first inch of travel pedal produces negligible momentum. And from a company that used to produce the smoothest riding trucks in the biz this one still feels and sounds very trucky.
And that’s why the Denali badge seems a bit bastardized here. Yes, there’s an exclusive 8” touch screen with IntelliLink, a Bose audio system, heated and cooled leather seats, a heated steering wheel and a power sliding rear window but the entire package seems a bit half-hearted. And while the Sierra HD is certainly very quiet inside and full of useful features – including the optional Driver Alert Package with the vibrating Safety Seat – there’s a quality level concerning fit and finish that seems less than Denali-approved. I’d also expect to see features like smart key access and push button start, power folding outside mirrorss, better ventilation for rear seat passengers, and more cleverness in the bed. But as long as Denali models account for more than 1/3 of all HD Crew Cab sales, it’ll be here to stay.
Pricing for this Denali starts at $54,835 and totals $64,575 as tested with 20” wheels, a sunroof and dual alternators to keep all the goodies running.