2018 GMC Sierra 1500 SLT 4x4
$4,696 less than this car
- 61,387 mi
- 4WD
- 8-Speed Automatic
- Gasoline
- Truck
Johnson Auto Plaza · Brighton, CO · 11 mi away
76,640 miles · truck

EPA estimate 20 MPG Hwy/15 MPG City! SLT trim, Deep Mahogany Metallic exterior and Dark Walnut/Slate interior. KEY FEATURES INCLUDE Leather Seats, Sunroof, Heated Rear Seat, Cooled Driver Seat, Back-Up Camera, Satellite Radio, iPod/MP3 Input, Onboard Communications System, Remote Engine Start, Dual Zone A/C MP3 Player, Privacy Glass, Keyless Entry, Steering Wheel Controls. GMC SLT with Deep Mahogany Metallic exterior and Dark Walnut/Slate interior features a 8 Cylinder Engine with 355 HP at 5600 RPM*. OPTION PACKAGES SLT PREMIUM PLUS PACKAGE: includes (PCY) SLT Convenience Package, (PDY) SLT Preferred Package, (PQB) Driver Alert Package I, (PDJ) Driver Alert Package II, (NZM) 20" Polished aluminum wheels, (PTT) Trailer Tire Pressure Monitor System, (BVT) Chrome assist steps and (CGN) spray-on bedliner. MAX TRAILERING PACKAGE: includes 9.76" rear axle, (GU6) 3.42 axle ratio, enhanced cooling radiator, revised shock tuning for increased control, heavier duty rear springs, increased RGAWR and (KW5) 220-amp alternator, DRIVER ALERT PACKAGE II: includes (UEU) Forward Collision Alert, (UHX) Lane Keep Assist/Lane Departure Warning, (UHY) Low Speed Forward Automatic Braking, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam headlamps and (UE4) Following Distance Indicator Includes (HS1) Safety Alert Seat. DEEP MAHOGANY METALLIC, Seat Adjuster, Driver 10-Way Power Including Lumbar, Seat Adjuster, Passenger 10-Way Power Including Lumbar, Seating, Heated Driver And Front Passenger, Steering Wheel, Leather-Wrapped, Steering Wheel, Heated, Windows, Power Front, Drivers Express Up/Down, Window, Power Front, Passenger Express Up/Down, Trailering Package Includes Trailer Hitch, 7-Pin And 4-Pin Connectors And (Ctt) Hitch Guidance, Cruise Control, Steering Wheel-Mounted, Stabilitrak, Stability Control System With Proactive Roll Avoidance And Traction Control, Includes Electronic Trailer Sway Control And Hill Start Assist, Four Wheel Drive, Engine, 5.3L Ecotec3 V8 (355 Hp [265 Kw] @ 5600 Rpm, 383 Lb-Ft Of Torque [518 Nm] @ 4100 Rpm); Featuring All-New Dynamic Fuel Management That Enables The Engine To Operate In 17 Different Patterns Between 2 And 8 Cylinders, Depending On Demand, To Optimize Power Delivery And Efficiency. EXPERTS REPORT Edmunds.com's review says "Plenty of low-speed torque and a transmission with smart shift schedules mean the Sierra gets off the line well.". Pricing analysis performed on 10/31/2026.
Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.
Among the highest-priced · 0% of 5 similar listings ask more than this car.
How we calculate market value: comparable cars for sale now plus their last listed prices.
Price tracked by AutosXchange since Nov 9, 2026. No price change at this dealership since Nov 9 ($37,184).
Market activity: GMC Sierra 1500 prices in the Mountain division: 10.2% of listings cut in 48 hours
AutosXchange Intel Hub: Price changes for this model in Colorado · This model in the Intel Hub · Market movers in Colorado
Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 13); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.
Same 2018–2020 Sierra 1500 SLT · used · any miles · within 50 miles of Thornton, Colorado. All 5 comparable cars for sale, nearest first.
$4,696 less than this car
Johnson Auto Plaza · Brighton, CO · 11 mi away
$3,696 less than this car
Johnson Auto Plaza · Brighton, CO · 11 mi away
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Sterling Auto Sales · Franktown, CO · 44 mi away
2018 GMC Sierra 1500 SLT 4x461,387 miles · Johnson Auto Plaza · Brighton, CO · 11 mi away$32,488$4,696 less than this car
2020 GMC Sierra 1500 SLT 4x495,441 miles · Johnson Auto Plaza · Brighton, CO · 11 mi away$33,488$3,696 less than this car
2019 GMC Sierra 1500 SLT83,990 miles · Sterling Auto Sales (Frederick) · Frederick, CO · 18 mi away$34,992$2,192 less than this car
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2018 GMC Sierra 1500 SLT107,033 miles · Sterling Auto Sales · Franktown, CO · 44 mi away$27,950$9,234 less than this carAll years and trims. Nearest first.
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