Fits 06-08 Buick Lucerne / Cad DTS Left Driver Side Mirror Glass w/Signal Direct Fit-Over Option for Auto Dimming Type New in Box: Exact Fit Mirror Glass Fitment: Left Driver Side Mirror (Glass Lens Only) Buyer please always confirm image and measurement before purchase. Most vehicles may have more than one option, mirror measures (7 3/4) inches diagonally. Quick, Easy, Cost effective alternative to full assembly replacement. Mirrors were originally equipped with heated auto-dimming feature, use existing LED Inexpensive Alternative direct fit over for heated auto dimming type mirrors. Mirror does not auto. Heat function remains.