2020 GMC Sierra 1500 SLT
$3,921 less than this car
- 91,888 mi
- 4WD
- Automatic
- Gasoline
- Truck
Conicelli Toyota of Conshohocken · Conshohocken, PA · 15 mi away
85,637 miles · truck · Price dropped $165

Priced below KBB Fair Purchase Price! This 2020 GMC Sierra 1500 SLT in Red Quartz Tintcoat features: EcoTec3 5.3L V8 10-Speed Automatic 4WD CARFAX One-Owner. Clean CARFAX.Odometer is 538 miles below market average!Our model lineup is second to none! Make sure you swing in today to get an incredible deal on many new and used Buick and GMC models. These vehicles come packed full of features including a one-of-a-kind navigation system that will get you to any location efficiently and safely. Have kids and want to keep them entertained? Our Rear Seat DVD equipped vehicles will have them settled in for those long trips. The average family is getting larger and larger so make sure to check out our vehicles with the extra space with third row seating that can fit kids, dogs, adults, and more! Of course, when it gets chilly in those winter months, features like climate control and heated leather seating are exactly what your body needs for an early morning trip into work. Check out all of these features and more in our stock of vehicles. Other features include but are not limited to Power Moonroof, New Battery, New Tires, Non-Smoker Interior, Paddle Shifters, One Owner Carfax Certified, Premium Wheels, 30+ MPG, Premium Cloth Seating, New Brakes, Premium Sound System, Rear Bucket Seats, Remainder of Factory Warranty, Rear Back-Up Sensors, Remote Keyless Entry, Service Records Available, Steering Wheel Controls, Remote Start, Tow Package, Traction Control, XM Radio, USB Ports, and much more! Price excludes tax, tags, title, license, and dealer fees, additional rebates may apply. See our specials for more details.
Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.
In the typical middle range · 40% 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 5, 2026. 1 price change at this dealership: $33,453 → $33,288 (−$165).
Market activity: O'Neil GMC cut prices on 47 GMC Sierra 1500 by an average of $2,003
AutosXchange Intel Hub: Price changes for this model in Pennsylvania · This model in the Intel Hub · Market movers in Pennsylvania
Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.
Same 2020 Sierra 1500 SLT · used · any miles · within 50 miles of Warminster, Pennsylvania. All 5 comparable cars for sale, nearest first.
$3,921 less than this car
Conicelli Toyota of Conshohocken · Conshohocken, PA · 15 mi away
$6,997 more than this car
Granite Run Buick GMC Inc. · Media, PA · 27 mi away
$1,703 more than this car
Rossi Chrysler Dodge Jeep Ram · Washington, NJ · 37 mi away
$5,297 less than this car
Rossi Chrysler Dodge Jeep Ram · Washington, NJ · 37 mi away
$5,793 less than this car
Johnson Dodge-Chrysler-Jeep · Budd Lake, NJ · 49 mi away
2020 GMC Sierra 1500 SLT91,888 miles · Conicelli Toyota of Conshohocken · Conshohocken, PA · 15 mi away$29,367$3,921 less than this car
2020 GMC Sierra 1500 SLT58,118 miles · Granite Run Buick GMC Inc. · Media, PA · 27 mi away$40,285$6,997 more than this car
2020 GMC Sierra 1500 SLT63,814 miles · Rossi Chrysler Dodge Jeep Ram · Washington, NJ · 37 mi away$34,991$1,703 more than this car
2020 GMC Sierra 1500 SLT118,076 miles · Rossi Chrysler Dodge Jeep Ram · Washington, NJ · 37 mi away$27,991$5,297 less than this car
2020 GMC Sierra 1500 SLT Truck100,069 miles · Johnson Dodge-Chrysler-Jeep · Budd Lake, NJ · 49 mi away$27,495$5,793 less than this carAll years and trims. Nearest first.
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
2021 GMC Sierra 1500 SLT57,180 miles · O'Neil GMC · Warminster, PA · 0 mi away$35,389
2019 GMC Sierra 1500 AT456,674 miles · O'Neil GMC · Warminster, PA · 0 mi away$40,185
2021 GMC Sierra 2500 HD SLE54,638 miles · O'Neil GMC · Warminster, PA · 0 mi away$46,485
2023 GMC Sierra 1500 Denali Ultimate72,023 miles · O'Neil GMC · Warminster, PA · 0 mi away$52,590
2024 GMC Sierra 1500 Elevation23,541 miles · O'Neil GMC · Warminster, PA · 0 mi away$47,435
2024 GMC Sierra 1500 Denali47,119 miles · O'Neil GMC · Warminster, PA · 0 mi away$53,395
2025 GMC Sierra 2500 HD Pro15,288 miles · O'Neil GMC · Warminster, PA · 0 mi away$53,485
2026 GMC Sierra 1500 SLT21,620 miles · O'Neil GMC · Warminster, PA · 0 mi away$46,860