2018 GMC Sierra 1500 SLE
Specifications, live market data, colors, and factory features.
136 for sale right now
$11,995 – $32,990
Specifications
Performance
- Engine
- 5.3L 8-Cylinder L83 -Spark Ignited Direct Injection, Variable Valve Timing, AFM, E85 MAX, ALUM
- Transmission
- Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Gasoline
- MPG City
- 16 mpg
- MPG Highway
- 22 mpg
- MPG Combined
- 18 mpg
Body & Practicality
- Body Style
- Truck
- Doors
- 4
Colors
Factory colors on 2018 GMC Sierra 1500 SLEs for sale now.
Exterior
- Onyx Black(black)17
- Summit White(white)15
- Quicksilver Metallic(silver)7
- Red4
- Red Quartz Tintcoat(red)4
- Stone Blue Metallic(blue)4
- White4
- Dark Slate Metallic(gray)3
- Gray3
- Cardinal Red(red)2
Interior
- Jet Black(black)36
- Black19
- Dark Ash seats with Jet Black interior accents(black)2
- Gray2
- Cocoa / Dune(brown)1
- Cocoa/Dune(brown)1
- JET BLACK(black)1
- Dark Ash/Jet Black(gray)1
- Dark Ash(gray)1
Live Market Data
Computed from active 2018 GMC Sierra 1500 SLE listings nationwide, updated continuously.
Price Distribution
Price vs. Mileage
Latest SLE Listings
The newest 2018 GMC Sierra 1500 SLEs on the market.

Used 2018 GMC Sierra 1500
$24,749
Est. $366/mo*
Tucker Chevrolet

Used 2018 GMC Sierra 1500
$28,398
Est. $418/mo*
Huebner Chevrolet

Used 2018 GMC Sierra 1500
$24,799
Est. $367/mo*
Morrie's Onalaska Chevrolet

Used 2018 GMC Sierra 1500
$22,995
Est. $341/mo*
Autoworld of Conway

Used 2018 GMC Sierra 1500
$22,799
Est. $338/mo*
Spitzer Buick GMC

Used 2018 GMC Sierra 1500
$17,476
Est. $262/mo*
Checker Flag Auto

Used 2018 GMC Sierra 1500
$18,125
Est. $272/mo*
Honda Marysville

Used 2018 GMC Sierra 1500
$27,695
Est. $408/mo*
DriveTime of Macon
What's Yours
Worth?
The median 2018 GMC Sierra 1500 SLE lists for $23,440 today.
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GMC Sierra 1500 SLE
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Factory Features
Standard equipment from the window sticker, reviewed for accuracy.
Comfort & Convenience
- Single-zone air conditioning
- Power windows with driver express-up/express-down and express-down on all other windows
- Power door locks
- Remote Keyless Entry with remote locking tailgate
- Cruise control, steering wheel-mounted
- Manual Tilt-Wheel steering column
- EZ-Lift and Lower tailgate
- Capless fuel fill
- OnStar 4G LTE built-in Wi-Fi hotspot (up to 7 devices; includes data trial for 3 months or 3GB, whichever comes first)
- Illuminated driver and front passenger vanity mirrors
Driver Assistance
- Rear Vision Camera
- Cruise control, steering wheel-mounted
- Hill start assist (included with StabiliTrak)
- Electronic trailer sway control (included with StabiliTrak)
Entertainment
- GMC Infotainment System with 8" diagonal color touch screen
- AM/FM/SiriusXM and HD Radio
- USB ports and auxiliary jack
- Bluetooth streaming audio for music and most phones
- Bluetooth for phone (personal cell phone connectivity to vehicle audio system)
- Pandora Internet radio
- Voice-activated technology for radio and phone
- Apple CarPlay and Android Auto compatibility
- Single-slot CD/MP3 player
- 6-speaker audio system
- SiriusXM Satellite Radio with 3-month All Access trial subscription
- OnStar 4G LTE and available built-in Wi-Fi hotspot with data trial
Exterior
- 17" x 8" premium painted aluminum wheels, bright machined
- P255/70R17 all-season blackwall tires
- Spare tire, P255/70R17 all-season blackwall, with keyed tire carrier lock
- High-intensity discharge (HID) projector-beam headlamps with LED signature lighting
- Daytime Running Lamps with automatic exterior lamp control
- Chrome grille surround
- Front chrome lower bumper
- Rear chrome bumper with bumper CornerSteps
- CornerStep rear bumper integrated steps
- Body-color door handles
- Body-color bodyside moldings
- Body-color outside mirror caps
- Outside heated power-adjustable mirrors (body-color) with driver-side spotter mirror
- Deep-tinted glass
- LED cargo box lighting with switch on center switch bank
- Cab-mounted cargo area lamps with switch on center switch bank
- Pickup box with tailgate and bed rail protection caps (top)
- Cargo tie-downs (4), movable upper
- EZ-Lift and Lower tailgate
- Remote locking tailgate (included with Remote Keyless Entry)
- Front frame-mounted black recovery hooks (standard on 4WD models)
- Rear wheelhouse liners (Double Cab and Crew Cab models)
Interior
- Single-zone air conditioning
- Driver Information Center, 4.2-inch diagonal color display with driver personalization, warning messages, and vehicle information
- Instrumentation, 6-gauge cluster (speedometer, fuel level, engine temperature, tachometer, voltage, and oil pressure)
- Cloth front 40/20/40 split-bench seat, 3-passenger: driver and front passenger recline, outboard head restraints, center fold-down armrest with storage, manually adjustable driver lumbar, lockable under-seat storage compartment, and storage pockets
- Rear 60/40 folding bench seat, 3-passenger with child-seat top tether anchor (Double Cab and Crew Cab models)
- Leather-wrapped steering wheel with audio and cruise controls
- Steering wheel audio controls
- Steering column, manual Tilt-Wheel
- Color-keyed carpeting
- Rubberized-vinyl front floor mats
- Rubberized-vinyl rear floor mats (Double Cab and Crew Cab models)
- Driver and front passenger illuminated vanity mirrors
- Assist handle, front passenger on A-pillar
- Soft-touch instrument panel surfaces (SLE-level interior)
Mechanical & Performance
- 4.3L EcoTec3 V6 engine with Active Fuel Management, Direct Injection, Variable Valve Timing, and E85 FlexFuel capability (285 hp @ 5300 rpm, 305 lb-ft @ 3900 rpm); standard on SLE Equipment Group 3SA (upgradeable; 5.3L EcoTec3 V8 available)
- 6-speed automatic transmission, electronically controlled with overdrive and Tow/Haul mode; includes Cruise Grade Braking and Powertrain Grade Braking
- Electric Power Steering (EPS) assist, rack-and-pinion
- 4-wheel disc brakes with DURALIFE rotors and 4-wheel antilock (ABS)
- StabiliTrak electronic stability control system with Proactive Roll Avoidance and traction control; includes electronic trailer sway control and hill start assist
- External engine oil cooler
- 150-amp alternator
- Heavy-duty maintenance-free battery with rundown protection and retained accessory power (730 cold-cranking amps/70 Amp-hr with standard V6)
- Fully boxed frame with hydroformed front section
- Aluminized stainless-steel muffler and tailpipe
- Active Aero Shutters, front
- Capless fuel fill
- Rear axle ratio matched to powertrain (3.23 standard with 4.3L V6 2WD; 3.42 standard with 4.3L V6 4WD; 3.08 standard with 5.3L V8 when so equipped)
- Heavy-duty locking rear differential (standard on 4WD models)
- AutoTrac active 2-speed electronic transfer case with rotary controls and neutral position for dinghy towing (4WD models)
Safety & Security
- Dual-stage frontal and side-impact air bags for driver and front passenger; head-curtain and seat-mounted side-impact air bags for front and rear outboard seating positions with Passenger Sensing System
- Rear Vision Camera
- Tire Pressure Monitoring System with Tire Fill Alert (does not apply to spare tire)
- Teen Driver mode (configurable key-fob vehicle settings and in-vehicle report card)
- Power door locks
- Remote Keyless Entry
- OnStar Guidance Plan limited trial service (Automatic Crash Response, Stolen Vehicle Assistance, Roadside Assistance, Turn-by-Turn Navigation, Advanced Diagnostics, and more; trial excludes Hands-Free Calling minutes)
Warranty
- 3-year/36,000-mile Bumper-to-Bumper Limited Warranty (whichever comes first)
- 5-year/60,000-mile Powertrain Limited Warranty (whichever comes first)
- 5-year/60,000-mile Roadside Assistance and Courtesy Transportation (whichever comes first)
- 6-year/100,000-mile rust-through corrosion protection (whichever comes first)
- Pro Grade Protection: 2 maintenance visits during the first 2 years/24,000 miles (whichever comes first; see dealer for details)