1993 Cadillac Fleetwood Owner's Manual - Page 231

I I Your hazard warning flashers let you warn others. They also letpolice know you have a problem. Your front and rear turn signal lights willflash on andoff. Press the buttonin to make your front and rear turnsignal lights flash on andoff. -- - iI Your hazard warning flashers work no matterwhat positionyour key is in, and even if the key isn't in.