2015 GMC Sierra 1500 SLT
Specifications, live market data, colors, and factory features.
285 for sale right now
$8,120 – $41,810
Specifications
Performance
- Engine
- 5.3L 8-Cylinder L83 - VVT, Active Fuel Management, Aluminum.
- Horsepower
- 355 hp
- Torque
- 383 lb-ft
- Transmission
- 6-Speed Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Gasoline
- MPG City
- 16 mpg
- MPG Highway
- 22 mpg
- MPG Combined
- 18 mpg
- Fuel Tank
- 26 gal
Dimensions
- Length
- 229.5″
- Width
- 80″
- Height
- 74″
- Wheelbase
- 143.5″
- Curb Weight
- 5,278 lbs
Body & Practicality
- Body Style
- Truck
- Doors
- 4
- Seating
- 6
- Base MSRP
- $46,510
Colors
Factory colors on 2015 GMC Sierra 1500 SLTs for sale now.
Exterior
- Onyx Black(black)25
- Iridium Metallic(silver)11
- White9
- Quicksilver Metallic(silver)8
- Summit White(white)8
- Stone Blue Metallic(blue)6
- Black5
- White Diamond Tricoat(white)4
- Gray4
- Sonoma Red Metallic(red)3
Interior
- Black32
- Jet Black(black)30
- Cocoa / Dune(brown)11
- Cocoa/Dune(brown)7
- Tan(brown)5
- Jet Black/Dark Ash(black)4
- BLACK3
- Beige(brown)3
- Dark Ash/Jet Black(black)2
- Jet Black / Dark Ash(black)2
Live Market Data
Computed from active 2015 GMC Sierra 1500 SLT listings nationwide, updated continuously.
Price Distribution
Price vs. Mileage
Latest SLT Listings
The newest 2015 GMC Sierra 1500 SLTs on the market.

Used 2015 GMC Sierra 1500
$19,995
Est. $298/mo*
Blackshire Motors

Used 2015 GMC Sierra 1500
$23,990
Est. $355/mo*
Concordville Nissan

Used 2015 GMC Sierra 1500
$24,391
Est. $361/mo*
Bergstrom Porsche of Fox Valley

Used 2015 GMC Sierra 1500
$30,594
Est. $449/mo*
Peak Auto Sales

Used 2015 GMC Sierra 1500
$20,592
Est. $307/mo*
Cherokee Auto Sales

Used 2015 GMC Sierra 1500
$8,120
Est. $129/mo*
Middlekauff Ford Lincoln

Used 2015 GMC Sierra 1500
$13,398
Est. $204/mo*
Ruby Mountain Motors - Twin Falls

Used 2015 GMC Sierra 1500
$21,990
Est. $327/mo*
Advanced Auto Car
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The median 2015 GMC Sierra 1500 SLT lists for $19,999 today.
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GMC Sierra 1500 SLT
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Factory Features
Standard equipment from the window sticker, reviewed for accuracy.
Comfort & Convenience
- Remote vehicle starter system
- Remote Keyless Entry
- Power door locks
- Power windows with driver express-up/down and express-down on other windows
- Power-adjustable pedals
- Steering-wheel-mounted cruise control
- Universal Home Remote
Driver Assistance
- Rear Vision Camera with dynamic guide lines
Entertainment
- 8" diagonal Color Touch radio with IntelliLink (AM/FM/SiriusXM)
- USB ports, auxiliary audio jack, and SD card slot
- Bluetooth phone connectivity and Bluetooth streaming audio
- Hands-free smartphone integration, Pandora internet radio, and voice-activated radio/phone controls
- Single-slot CD/MP3 player
- 6-speaker audio system
- SiriusXM Satellite Radio with 3-month All Access trial subscription
- OnStar 4G LTE built-in Wi-Fi hotspot capability (3-month/3 GB trial, whichever comes first)
- Steering-wheel audio controls
Exterior
- 18" x 8.5" polished aluminum wheels
- P265/65R18 all-terrain blackwall tires
- Full-size spare tire (P265/70R17 all-season blackwall) on 17" spare wheel with keyed tire carrier lock
- Chrome front bumper
- Chrome rear bumper with CornerStep rear bumper corner steps
- Chrome grille surround
- Chrome bodyside moldings
- Chrome door handles
- Chrome outside mirror caps
- Outside mirrors: chrome-cap, heated, power-adjustable, power-folding, driver-side auto-dimming, integrated turn-signal indicators, and puddle lamps
- Halogen projector-beam headlamps with LED signature lighting
- Front halogen fog lamps
- Daytime Running Lamps with automatic exterior lamp control
- Deep-tinted Solar-Ray glass
- LED cargo-box lighting with in-cab switch
- Cab-mounted cargo-area lamps with center-switch-bank control
- Remote locking tailgate with EZ-Lift and Lower
- Tailgate and bed-rail top protection caps
- Rear wheelhouse liners (Double Cab and Crew Cab)
Interior
- Front 40/20/40 leather-appointed split-bench seating (3-passenger) with heated seat cushions and seatbacks
- 10-way power driver and front-passenger seat adjusters including power recline and power lumbar
- 2-position driver-seat memory
- Adjustable outboard head restraints
- Rear 60/40 folding bench seat (3-passenger; Double Cab and Crew Cab)
- Leather-wrapped steering wheel with audio and cruise controls
- Manual tilt and telescoping steering column
- Dual-zone automatic climate control
- Rear-window electric defogger
- Color-keyed carpeting with rubberized vinyl floor mats (second-row mats on Double Cab and Crew Cab)
- 6-gauge instrument cluster (speedometer, fuel, engine temperature, tachometer, voltage, oil pressure)
- 4.2" diagonal color Driver Information Center with personalization, warnings, and vehicle information
- Inside rearview auto-dimming mirror
- Driver and front-passenger illuminated vanity mirrors
- Front-passenger A-pillar assist handle
- 110-volt AC power outlet
Mechanical & Performance
- 5.3L EcoTec3 V8 with Active Fuel Management, Direct Injection, and continuously Variable Valve Timing (355 hp / 383 lb-ft)
- 6-speed automatic transmission with overdrive, Tow/Haul mode, Cruise Grade Braking, and Powertrain Grade Braking
- E85 FlexFuel capability with 5.3L (where offered)
- Heavy-duty locking rear differential
- Trailering equipment package: trailer hitch platform plus integrated 7-pin and 4-pin connectors
- Handling/Trailering heavy-duty suspension (46 mm piston monotube shocks and 36 mm front stabilizer bar)
- External engine oil cooler
- Auxiliary external transmission oil cooler
- Electric power-assisted rack-and-pinion steering
- 4-wheel disc brakes with Duralife rotors and 4-wheel ABS
- StabiliTrak electronic stability control with Proactive Roll Avoidance, traction control, electronic trailer sway control, and Hill Start Assist
- Fully boxed frame with hydroformed front section
- Heavy-duty 720 CCA / 80 amp-hr maintenance-free battery with rundown protection and retained accessory power
- 150-amp alternator
- Aluminized stainless-steel muffler and tailpipe
- Pickup box with movable upper cargo tie-downs
- Front frame-mounted black recovery hooks (standard on 4WD; 2WD only with Off-Road/Z71 equipment)
Safety & Security
- Dual-stage frontal airbags for driver and front passenger with Passenger Sensing System
- Seat-mounted side-impact airbags for driver and front outboard passenger (thorax/pelvis protection)
- Front and rear head-curtain side-impact airbags for outboard seating positions with rollover protection
- StabiliTrak with Proactive Roll Avoidance and traction control
- Tire Pressure Monitoring System (excludes spare)
- Unauthorized-entry theft-deterrent system
- OnStar Directions & Connections plan for 6 months (Automatic Crash Response, Stolen Vehicle Assistance, Roadside Assistance, Turn-by-Turn Navigation, and related services)
- OnStar Basic Plan for 5 years (as offered for 2015 model year)
Warranty
- 3-year/36,000-mile Bumper-to-Bumper Limited Warranty (whichever comes first)
- 5-year/100,000-mile Powertrain Limited Warranty (whichever comes first; transferable, no deductible)
- 6-year/100,000-mile Rust-Through Corrosion Protection (whichever comes first)
- 2-year/24,000-mile recommended scheduled maintenance plan (Pro Grade Protection; oil/filter changes, tire rotations, and 27-point inspections per schedule)
- Warranty coverage includes tires and towing to the nearest GMC dealership for covered repairs