2015 GMC Sierra 2500HD SLT Crew Cab 4x4 ��" Power, Precision, and Pure Capability
Built to take on the toughest tasks Maine can throw at it, this 2015 GMC Sierra 2500HD SLT Crew Cab 4x4 is the definition of professional-grade strength and everyday comfort. Beneath the hood, the 6.0L V8 engine delivers commanding power and smooth, confident performance��"whether you’re hauling heavy loads, towing your weekend toys to the coast, or carving your way through a snowstorm on Route 1.
The bold exterior design exudes rugged confidence, while chrome accents, premium alloy wheels, and the signature GMC grille give it a refined edge. Inside, the SLT’s upscale interior surrounds you in comfort, featuring heated leather seats, a premium Bose sound system, and GMC’s IntelliLink touchscreen infotainment for seamless connectivity on every drive.
With Crew Cab space, there’s room for everyone��"and everything. The 4x4 drivetrain and heavy-duty suspension make this truck equally at home on a muddy job site or a scenic Maine backroad. The Sierra’s solid frame and advanced trailering technologies ensure rock-solid stability when you’re pulling boats, campers, or construction gear.
Ready for work or adventure, this Sierra 2500HD combines power, luxury, and durability in one unstoppable package. If you’re in Brunswick and looking for a truck that can handle Maine’s wild winters and weekend escapes with equal ease, this GMC is ready to roll.
Used 2015 GMCSierra 2500HD SLT 375996D
- Exterior Color
- Summit White
- Interior Color
- Black
- Odometer
- 102,184 miles
- Transmission
- 6 speed automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT12ZEG6FF147177
- Stock Number
- 375996D
GMC
Sierra 2500HD
Highlighted Features
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Wireless phone connectivity
- Chrome wheels
- Exterior parking camera rear
- Front dual zone A/C
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
- Heated front seats
- Perimeter/approach lights
Included Packages & Accessories
- Heavy-Duty Trailering Equipment
- Snow Plow Prep Package
- Standard Suspension Package
- 6 Speakers
- AM/FM radio: SiriusXM
- CD player
- Radio: AM/FM/SiriusXM
- Single Slot CD/MP3 Player
- SiriusXM Satellite Radio
- Steering Wheel Audio Controls
- Air Conditioning
- Automatic temperature control
- Dual-Zone Automatic Climate Control
- Electric Rear-Window Defogger
- Front dual zone A/C
- Rear window defroster
- 110-Volt AC Power Outlet
- Bluetooth® For Phone
- Memory seat
- Power driver seat
- Power steering
- Power windows
- Power Windows w/Driver Express Up & Down
- Power-Adjustable Pedals For Accelerator & Brake
- Remote Keyless Entry
- Remote keyless entry
- Remote Vehicle Starter System
- Steering wheel mounted audio controls
- Universal Home Remote
- Manual Tilt-Wheel/Telescoping Steering Col (DISC)
- Manual Tilt-Wheel/Telescoping Steering Column
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Chrome Front Bumper
- Chrome Rear Bumper
- Dual front impact airbags
- Dual front side impact airbags
- Emergency communication system: OnStar Directions & Connections
- Front anti-roll bar
- Front wheel independent suspension
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Rear Bumper Cornersteps
- Brake assist
- Electronic Stability Control
- Exterior Parking Camera Rear
- Delay-off headlights
- Front fog lights
- Front Halogen Fog Lamps
- Fully automatic headlights
- Panic alarm
- Security system
- Theft Deterrent System (Unauthorized Entry)
- Speed control
- 220 Amps Alternator
- 730 Cold-Cranking Amps Auxiliary Battery
- 6" Rectangular Chrome Tubular Assist Steps (LPO)
- Auto-dimming door mirrors
- Black Front & Rear Molded Splash Guards (LPO)
- Bodyside moldings
- Bumpers: chrome
- Chrome Bodyside Moldings
- Chrome Door Handles
- Chrome Mirror Caps
- Electronic Shift Transfer Case
- EZ-Lift & Lower Tailgate
- Front License Plate Kit
- Heated door mirrors
- Heated Power-Adjustable Outside Mirrors
- LED Cargo Box Lighting
- Power door mirrors
- Provision for Cab Roof-Mounted Lamp/Beacon
- Rear step bumper
- Rear Wheelhouse Liners
- Smoked Amber Roof Marker Lamps
- Turn signal indicator mirrors
- 4.2" Diagonal Color Display Driver Info Center
- Adjustable pedals
- Auto-Dimming Inside Rear-View Mirror
- Auto-dimming Rear-View mirror
- Color-Keyed Carpeting Floor Covering
- Compass
- Driver & Front Passenger Visors
- Driver door bin
- Driver vanity mirror
- Front reading lights
- Garage door transmitter
- Illuminated entry
- Leather-Wrapped Steering Wheel
- OnStar 4G LTE Wi-Fi Hotspot
- OnStar 6 Months Directions/Connections Plan
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear reading lights
- Rear seat center armrest
- Rear Vision Camera w/Dynamic Guide Lines
- SLT Decor
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Ultrasonic Front & Rear Park Assist
- Voltmeter
- Front 40/20/40 Split Bench Seat
- Front Full Feature Bucket Seats
- Heated Driver & Front Passenger Seats
- Heated front seats
- Leather Appointed Seat Trim
- Power passenger seat
- Rear 60/40 Folding Bench Seat (Folds Up)
- Split folding rear seat
- Floor Console w/Dual Cup Holders
- Front Center Armrest w/Storage
- Passenger door bin
- 18" Chromed Aluminum Wheels
- Alloy wheels
- Chrome wheels
- Deep-Tinted Glass
- Variably intermittent wipers
- 4.10 Rear Axle Ratio
Detailed Specifications
- 1-touch down
- 1-touch up
- Adjustable pedals
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar Directions & Connections
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Chrome wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Single rear wheels
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM
- CD player
- CD-MP3 decoder
- Primary LCD size: 8.0"
- Smart device integration: OnStar RemoteLink
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless phone connectivity: Bluetooth
- Heated front seats
- Leather upholstery
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Split folding rear seat
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Limited slip differential: mechanical
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Sequential multi-point fuel injection
- Transmission: 6 speed automatic
- Variable valve control
- Ground clearance (min): 245mm (9.7")
- Auto-dimming door mirrors
- Bodyside moldings
- Door mirrors: chrome
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch receiver
- Trailer sway control
- Turn signal indicator mirrors
- Exterior body width: 2,045mm (80.5")
- Exterior height: 1,987mm (78.2")
- Exterior length: 6,083mm (239.5")
- Front headroom: 1,087mm (42.8")
- Front hiproom: 1,543mm (60.7")
- Front legroom: 1,150mm (45.3")
- Front shoulder room: 1,647mm (64.8")
- Payload: 1,338kg (2,950lbs)
- Rear headroom: 1,029mm (40.5")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,040mm (40.9")
- Rear shoulder room: 1,634mm (64.3")
- Towing capacity: 5,897kg (13,000lbs)
- Turning radius: 7.8m (25.8')
- Wheelbase: 3,904mm (153.7")
- Compass
- Delay-off headlights
- Display: analog
- Exterior parking camera rear
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Tracker system
- Traction control
Dealer Notes
KBB.com Consumer Reviews

Overall4.6Out of 5
- 5.0
Best HD Truck Ever !
By BZ | on Thursday, April 09, 2020
After owning a 1500 Sierra and stepping up to a 2500 HD Diesel there is a night and day difference when towing, highway MPG is surprisingly good for a 8000lb vehicle, average between 20-24 depending on conditions. Towing mpg is much better than gas V8. No strain at all on vehicle when towing. Truck has been 100% reliable so far @ 19K with zero issues. Allison transmission is the best I ever used, nothing else compares to this transmission !… - 5.0
This truck is awesome
By Army Vet | on Sunday, May 26, 2019
I love my GMC. It is reliable, well built, comfortable (my wife loves to road trip in our GMC) and gets excellent mileage (20-24 MPG on the hi-way). The truck drives well and is very solid feeling. The Duramax/Allison duo is unmatched in my opinion.… - 4.0
Great
By Ram | on Thursday, July 01, 2021
Kelley blue book is great. I recommend it to everyone. It gave me that answer I wanted. And now I feel comfortable.…
Based on 32 consumer ratings for 2015–2019 models. | Privacy
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