1997 Buick LeSabre Owner's Manual - Page 212

Hazard Warning Flashers Press the button in to make your front and rear turn signal lamps flash on and off. Your hazard warning flashers work n o matter what position your key is in. and even if the key isn't in. To turn off the flashers, pull out on the collar. Your hazard warning flashers let you warn others. They also let police know you have a problem. Your front and rear turn signal lamps will flash o n and dl'. When the hazard warning flashers are on, your turn signals won't work. 5-2