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Dave Sinclair Buick GMC · St Louis, MO

2018 GMC Sierra 1500 SLT

136,110 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2018
MakeGMC
ModelSierra 1500
TrimSLT
Stock numberT261654A
Mileage136,110 miles
BodyPickup
Engine5.3L 8-cyl
Cylinders8
Displacement5.3L
TransmissionAutomatic
Drivetrain4WD
FuelGasoline
MPG15 city / 20 hwy
ExteriorOnyx Black
InteriorJet Black, Leather-Appointed Front Seat Trim

Vehicle description

Why BUY from Dave Sinclair Buick GMC? When you choose this Onyx Black 2018 GMC Sierra 1500 SLT with 136,110 miles, you are not just buying a used vehicle - you are investing in quality, reliability and peace of mind. Our clientele depend on us for Transparent Pricing, Convenience and, most importantly, Customer FIRST Service! No Accidents! One Owner! What this vehicle includes: SLT Premium Package ($1,345 value)6" Rectangular Chromed Tubular Assist Steps20" X 9" Polished Aluminum WheelsBose Speaker SystemPreferred Equipment Group 4SAPower Windows with Driver Express Up and DownRear 60/40 Folding Bench Seat (folds Up)Deep-Tinted GlassRemote Keyless EntryRear Wheelhouse LinersColor-Keyed Carpeting1st and 2nd Row Color-Keyed Carpeted Floor MatsChrome Bodyside MoldingsRemote Vehicle Starter SystemElectric Rear Window DefoggerDual-Zone Automatic Climate ControlAuto-Dimming Inside Rearview MirrorDriver and Front Passenger Illuminated Vanity MirrorsPower Folding and Adjustable Heated Outside MirrorsChrome Mirror CapsChrome Door HandlesHeavy-Duty Rear Locking DifferentialPower Adjustable Pedals150 Amp Alternator110-Volt AC Power OutletAuxiliary External Transmission Oil Cooler5.3L EcoTec3 V8 EngineManual Tilt/telescoping Steering ColumnLeather Wrapped Steering Wheel with Cruise Controls2-Speed Active Electronic Autotrac Transfer CaseEZ Lift and Lower TailgateP265/70R17 AS BW Spare TireLeather Appointed Seat TrimThin Profile LED Fog LampsLED Tailamps with SignatureSingle Slot CD/MP3 Player4.2" Diagonal Color Display Driver Info CenterOnStar and GMC Connected Services CapableLED Cargo Box LightingUniversal Home RemoteSteering Wheel Audio ControlsTheft Deterrent System (unauthorized Entry)Front Frame-Mounted Black Recovery HooksGMC 4G LTETrailering EquipmentSLT Preferred Package ($795 value)Power Sliding Rear Window with DefoggerUltrasonic Front and Rear Park AssistLeather Wrapped Heated Steering Wheel Safety and Security The vehicle is equipped with a camera that displays an image of the area behind the vehicle on an interior display. Brake assist senses panic braking from the speed of the brake pedal's travel and applies all available power brake boost.Technology and Telematics Mobile devices can wirelessly connect to the internet through the vehicle's private mobile network. Mobile devices can wirelessly connect to the internet through the vehicle's private mobile network. Mobile devices can wirelessly connect to the internet through the vehicle's private mobile network. EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, 5.3L ECOTEC3 V8, WITH ACTIVE FUEL MANAGEMENT, DIRECT INJECTION, TRANSMISSION, 6-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED, GVWR, 7200 LBS. (3266 KG), REAR AXLE, 3.42 RATIO, WHEELS, 20" X 9" (50.8 CM X 22.9 CM) POLISHED ALUMINUM, TIRES, P275/55R20 ALL-TERRAIN, BLACKWALL, SOLID PAINT, ONYX BLACK, SEATS, FRONT FULL-FEATURE LEATHER-APPOINTED BUCKET, JET BLACK, LEATHER-APPOINTED FRONT SEAT TRIM, AUDIO SYSTEM, 8" DIAGONAL COLOR TOUCH SCREEN NAVIGATION WITH GMC INFOTAINMENT SYSTEM, AM/FM/SIRIUSXM, HD RADIO, SLT PREMIUM PACKAGE, SLT PREFERRED PACKAGE, AIR CLEANER, HIGH-CAPACITY, HILL DESCENT CONTROL, SUSPENSION PACKAGE, OFF-ROAD, UNDERBODY SHIELD, TRANSFER CASE PROTECTION, TRAILER BRAKE CONTROLLER, INTEGRATED, LPO, WHEEL LOCKS, SET OF 4, ASSIST STEPS, CHROMED TUBULAR, 6" RECTANGULAR, WINDOW, POWER, REAR SLIDING WITH REAR DEFOGGER, LICENSE PLATE KIT, FRONT, BOSE SOUND WITH 6 SPEAKER SYSTEM, WIRELESS CHARGING, CONSOLE, FLOOR MOUNTED, STEERING WHEEL, HEATED, LEATHER WRAPPED, FRONT AND REAR PARK ASSIST, ULTRASONIC Come on in to Dave Sinclair Buick GMC today at 5655 South Lindbergh Blvd St Louis MO 63123 or call (314) 272-4060 to schedule a test drive!

Features & options (17)

  • Bluetooth®
  • Heated Steering Wheel
  • 4WD/AWD
  • Heated Seats
  • Leather Seats
  • Wireless Phone Charging
  • Parking Assistance
  • Cruise Control
  • DriveType: Four Wheel Drive
  • City: 15 MPG
  • Hwy: 20 MPG
  • Combined: 17 MPG
  • Fuel System: Direct Injection
  • Fuel Tank Capacity: 26 gal
  • Fuel Type: Gasoline Fuel
  • Horse Power: 355
  • Rear Wheel: Single

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 100 miles of St Louis, Missouri
Asking price$26,272Dealer asking price · 136,110 mi
Market value$25,775Market value · based on 5 comparable cars
vs. market Fair price+1.9%Fair price · based on 5 comparable cars

Where this price sits

In the typical middle range · 40% of 5 similar listings ask more than this car.

$16,500lowest$32,082highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+1.9%
−25%Market value+25%
Fair price$497 above the market value of $25,775

Price range

$26,272
$16,500$32,082
4th lowest price of 6 similar listings within 100 milesTick marks the market value · range of 5 similar listings

AutosXchange Insights

  • Compared with 5 used 2017–2019 GMC Sierra 1500 SLT listings within 100 mi.
  • Priced $497 above the market value of 5 comparable cars — compare options, condition and history.
  • 4th lowest price of 6 similar listings within 100 miles.
  • Has about 13,000 more miles than similar listings.
  • About 15,123 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # T261654A — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 6, 2026. No price change at this dealership since Nov 6 ($26,272).

$26.0k$26.1k$26.2k$26.3k$26.4k$26.5kNov 6Nov 8Nov 9Nov 11Nov 12Nov 14

AutosXchange Intel Hub: Price changes for this model in Missouri · This model in the Intel Hub · Market movers in Missouri

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 14); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2017–2019 Sierra 1500 SLT · used · any miles · within 100 miles of St Louis, Missouri. All 5 comparable cars for sale, nearest first.

More GMC Sierra 1500 near St Louis

All years and trims. Nearest first.