2018 GMC Sierra 1500 SLT

Specifications, live market data, colors, and factory features.

831 for sale right now

$14,489 – $40,995

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Specifications

355

Horsepower

383

lb-ft Torque

MPG Combined

Seats

$48k

Base MSRP

Performance

Engine: 5.3L 8-Cylinder L83 -Spark Ignited Direct Injection, Variable Valve Timing, AFM, E85 MAX, ALUM
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: 5,300 lbs

Body & Practicality

Body Style: Truck
Doors: 4
Seating: 6
Base MSRP: $48,140

Colors

Factory colors on 2018 GMC Sierra 1500 SLTs for sale now.

Exterior

Onyx Black(black)33
Summit White(white)29
Dark Slate Metallic(gray)16
Quicksilver Metallic(silver)14
Red Quartz Tintcoat(red)13
White Frost Tricoat(white)9
White9
Cardinal Red(red)5
White Frost(white)3
Stone Blue Metallic(blue)2

Interior

Jet Black(black)63
Cocoa/Dune(brown)23
Cocoa / Dune(brown)15
Black6
Gray5
Tan(brown)4
Dark Ash/Jet Black(black)4
Dark Ash(gray)4
Jet Black/Spice Red(black)4
Dark Ash Seats With Jet Black Interior Accents(black)3

Live Market Data

Computed from active 2018 GMC Sierra 1500 SLT listings nationwide, updated continuously.

For sale now831

Median price$27,174

Average price$26,929

Price range$14,489 – $40,995

Median vs. MSRP−$20,966

Avg. days on market34

Avg. mileage109,882 mi

New / Used0 / 500

Price Distribution

Price vs. Mileage

Latest SLT Listings

The newest 2018 GMC Sierra 1500 SLTs on the market.

View all 831 →

Used 2018 GMC Sierra 1500

SLT

$27,545

97,075 mi

Est. $406/mo*

1 day at this dealer

Onyx BlackJet Black

Alderman Automotive

Fishers, IN

Used 2018 GMC Sierra 1500

SLT

$32,195

93,414 mi

Est. $472/mo*

1 day at this dealer

Onyx BlackTan

DriveTime of Shreveport

Shreveport, LA

Used 2018 GMC Sierra 1500

SLT

$22,411

143,973 mi

Est. $333/mo*

1 day at this dealer

BlueJet Black

Webb Chevrolet Oak Lawn

Oak Lawn, IL

Used 2018 GMC Sierra 1500

SLT

$27,255

115,827 mi

Est. $402/mo*

2 days at this dealer

Cardinal RedJet Black

Karl Chevrolet of Stuart

Stuart, IA

Used 2018 GMC Sierra 1500

SLT

$25,981

74,391 mi

Est. $384/mo*

2 days at this dealer

Summit WhiteCocoa/Dune

San Antonio Dodge Chrysler Jeep RAM

San Antonio, TX

Used 2018 GMC Sierra 1500

SLT

$31,819

60,463 mi

Est. $467/mo*

2 days at this dealer

GrayDark Ash

Ewing Buick GMC

Plano, TX

Used 2018 GMC Sierra 1500

SLT

$24,294

45,089 mi

Est. $360/mo*

2 days at this dealer

GrayJet Black

Automotive Avenues

Sewell, NJ

Used 2018 GMC Sierra 1500

SLT

$28,145

158,602 mi

Est. $414/mo*

3 days at this dealer

WhiteBrown

Peltier KIA Longview

Longview, TX

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The median 2018 GMC Sierra 1500 SLT lists for $27,174 today.

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Factory Features

Standard equipment from the window sticker, reviewed for accuracy.

Comfort & Convenience

Dual-zone automatic climate control
Cruise control (steering wheel-mounted)
Remote vehicle starter system
Power-adjustable pedals
110-volt AC power outlet
Universal Home Remote
Power windows with driver express-up/down and express-down on other windows
Electric rear-window defogger
OnStar Guidance Plan limited trial service (Automatic Crash Response, Stolen Vehicle Assistance, Roadside Assistance, Turn-by-Turn Navigation, Advanced Diagnostics, and more)
OnStar 4G LTE with built-in Wi-Fi hotspot (up to 7 devices; data trial applies)

Driver Assistance

Rear Vision Camera
Hill start assist
Electronic trailer sway control
Teen Driver configurable driving settings

Entertainment

8-inch diagonal Color Touch Screen GMC Infotainment System with AM/FM/SiriusXM, HD Radio, USB ports, auxiliary jack, Bluetooth streaming audio, Pandora Internet radio, and voice-activated technology for radio and phone
Single-slot CD/MP3 player
6-speaker audio system
SiriusXM Satellite Radio (trial subscription)
HD Radio
Bluetooth phone connectivity
Apple CarPlay and Android Auto compatibility

Exterior

18-inch x 8.5-inch polished aluminum wheels
P265/65R18 all-season blackwall tires
P265/70R17 all-season blackwall spare tire
Spare tire carrier lock (same key as ignition and doors)
Chrome grille surround
Chrome lower front bumper
Chrome rear bumper with CornerStep
Chrome door handles
Chrome bodyside moldings
Chrome outside mirror caps
Outside heated power-adjustable, power-folding mirrors with chrome caps, driver-side auto-dimming, integrated turn signal indicators, puddle lamps, and driver-side spotter mirror
High-intensity discharge (HID) projector-beam headlamps with LED signature lighting
Thin-profile LED fog lamps
LED taillamps with signature lighting
Daytime Running Lamps with automatic exterior lamp control
Active front aero shutters
Deep-tinted glass
LED cargo box lighting with in-cab switch
Cab-mounted cargo area lamps with center-switch-bank control
Pickup box with tailgate and bed rail protection caps
4 movable upper cargo tie-downs
EZ-Lift and Lower tailgate with remote locking
Rear wheelhouse liners
Front frame-mounted black recovery hooks (standard on 4WD models)

Interior

Leather-appointed front 40/20/40 split-bench seat (3-passenger) with heated cushions and seatbacks
10-way power driver and front passenger seat adjusters including power recline and power lumbar
2-position driver seat memory
Rear 60/40 folding bench seat (3-passenger) with child-seat top tether anchor
Leather-wrapped steering wheel with audio and cruise controls
Manual tilt and telescoping steering column
4.2-inch diagonal color Driver Information Center with driver personalization
6-gauge instrument cluster (speedometer, fuel level, engine temperature, tachometer, voltage, oil pressure)
Color-keyed carpeting
Color-keyed carpeted first- and second-row floor mats
Auto-dimming inside rearview mirror
Driver and front passenger illuminated vanity mirrors
Front passenger A-pillar assist handle

Mechanical & Performance

5.3L EcoTec3 V8 engine with Active Fuel Management, Direct Injection, and Variable Valve Timing (355 hp @ 5600 rpm, 383 lb-ft @ 4100 rpm)
6-speed automatic transmission with overdrive, tow/haul mode, Cruise Grade Braking, and Powertrain Grade Braking
Heavy-duty automatic locking rear differential
3.08 rear axle ratio
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
Electric power-assisted rack-and-pinion steering
External engine oil cooler
Auxiliary external transmission oil cooler
150-amp alternator
Heavy-duty 720 cold-cranking amp / 80 Amp-hr battery with rundown protection and retained accessory power
Fully boxed frame with hydroformed front section
Aluminized stainless-steel muffler and tailpipe
Capless fuel fill
Trailering equipment package including trailer hitch and 7-pin and 4-pin connectors
Active 2-speed electronic Autotrac transfer case with rotary controls and neutral for dinghy towing (4WD models)

Safety & Security

Dual-stage frontal and side-impact airbags for driver and front passenger; head-curtain and seat-mounted side-impact airbags for front and rear outboard seating positions with Passenger Sensing System
Rear Vision Camera
Tire Pressure Monitoring System with Tire Fill Alert (excludes spare)
Teen Driver mode
Theft-deterrent system (unauthorized entry)
Power door locks
Remote Keyless Entry

Warranty

Basic limited warranty: 3 years / 36,000 miles
Powertrain limited warranty: 5 years / 60,000 miles
Corrosion perforation warranty: 6 years / 100,000 miles
Roadside assistance: 5 years / 60,000 miles