2018 GMC Sierra 1500 SLT Summit White CARFAX One-Owner. Silveira Chevrolet located in Sonoma. Bluetooth, Apple CarPlay/ Android Auto, Sierra 1500 SLT, 4D Crew Cab, EcoTec3 5.3L V8, 4WD, 10-Way Power Driver's Seat Adjuster, 110-Volt AC Power Outlet,...