1994 Cadillac Seville Owner's Manual - Page 185

NOTICE: Don't lubricate the power antenna. Lubrication could damage it. I NOTICE: Before entering an automatic car wash, turn off your radio to make the power antenna go down. This will prevent the mast from possibly getting damaged. If the antennadoes not go down when youturn the radio off, it may be damaged or need to be cleaned. In either case, lowerthe antennaby hand by carefully pressing the antennadown. 172