1993 Cadillac DeVille Owner's Manual - Page 127

ASTROROOF - EXPRESS OPEN If you have this option, theswitch is here: I The astroroof includes a sliding glasspanel and a sliding sunshade. The control switch onlyworks with the ignition on or in Retained Accessory Power (RAP) mode. To Open the Sunroof:Press the controlswitch rearward and release it to open theglass panel and sunshade. If you want to stop the sunroof in a partially open position, lightly press the switch again. Press the switch rearward again to openfully. The sunshade can also be opened by hand. To Close the Sunroof: Press and hold the controlswitch forward to close the glass panel. The sunshade can only be closed by hand. The sunroof glass panel cannot be opened or closed if your vehicle has an electrical failure. To Open the Sunroof Rear Vent: Press the controlswitch forward when the sunroof is closed. Open thesunshade by hand. To Close the Sunroof Rear Vent:Press the switch rearward. 114