2011 Chevrolet Avalanche SL1

6-Speed Automatic, Adjustable pedals, Bose 7-Speaker System, Emergency communication system, Power-Adjustable Pedals For Accelerator & Brake, Ultrasonic Rear Parking Assist, and XM Radio. FREE OIL CHANGES ON EVERY VEHICLE FOR 3 YEARS. If you want an amazing deal on an amazing truck that will handle just about any task, then take a look at this do-it-all 2011 Chevrolet Avalanche 1500. You, out using this talented Avalanche 1500, would be much better than it sitting here, idly on our lot. It does everything so well, except be lazy. Come help it!