Our rugged 2020 GMC Sierra 3500 SLT Crew Cab 4X4 in Onyx Black is impressively well equipped for working harder! Motivated by a stout 6.6 Liter V8 serving up 401hp paired to a Heavy Duty Automatic transmission for awesome strength. This Four Wheel Drive truck also rides on a specially tuned suspension so you can maximize its massive GVWR, and it features a ProGrade Trailering System to make towing especially easy. A commanding presence, our Sierra stands tall with LED lighting, fog lamps, chrome accents, alloy wheels, and a six-function MultiPro tailgate.

Every day will feel a little more comfortable in our SLT cabin that showcases leather heated and cooled power front seats, a leather heated steering wheel, dual-zone automatic climate control, remote start, and a Premium GMC Infotainment System. Thanks to that smart setup, you can stay connected with an 8-inch touchscreen, Apple CarPlay, Android Auto, WiFi compatibility, and Bluetooth, all while listening to a six-speaker sound system with HD Radio and available satellite radio.

GMC safeguards your busiest days with a high-strength steel frame that's complemented by an HD backup camera, a rear-seat reminder, ABS, hitch guidance, StabiliTrak stability/traction control, tire-pressure monitoring, and more. Our Sierra 3500 carries the weight of your world with ease! Save this Page and Call for Availability. We Know You Will Enjoy Your Test Drive Towards Ownership. Where does your vehicle take you? 
- Bannister Vernon
- 4703 27th St., Vernon
- (888) 410-5761 to book an appointment with a sales associate.

Our rugged 2020 GMC Sierra 3500 SLT Crew Cab 4X4 in Onyx Black is impressively well equipped for working harder! Motivated by a stout 6.6 Liter V8 serving up 401hp paired to a Heavy Duty Automatic transmission for awesome strength. This Four Wheel Drive truck also rides on