True OEM Style driver and passenger side extendable towing mirrors with L.E.D Turn Signals that fits 2007 - 2013 Chevrolet (Chevy) Avalanche, Silverado 1500 (new design ONLY for the 2007 Silverado, will NOT fit the 2007 Silverado Classic model); 2007-2014 Chevrolet (Chevy) Silverado 2500/3500; 2009-2013 Chevrolet (Chevy) Silverado Hybrid Full Size Pick-Up; 2007-2014 Chevrolet (Chevy) Suburban, Tahoe; 2007 - 2014 Cadillac Escalade; 2007-2013 GMC Sierra 1500; 2007-2014 GMC Sierra 2500/3500; 2009-2013 GMC Sierra Hybrid Full Size Pick-Up; 2007-2014 GMC Yukon models. The dual mirror head extends to provide additional view when towing. The mirror head is equipped with flat upper glass and a separate adjustable convex spot mirror for decreasing the blind spot area. If the vehicle is equipped with a curb to assist this feature must be turned off from the DIC (driver information center). The DIC is accessed by pressing the “i” button on the steering wheel. Scroll the menu to the “Curb View” setting and set them to OFF. This will keep mirrors from moving out of adjustment.