2004 Toyota Prius Owners Manual - Page 118

Emergency flashers If the turn signal indicator lights (green lights) on the instrument panel flash faster than normal, a front or rear turn signal bulb is burned out. See "Replacing light bulbs-" on page 302. NOTICE To prevent the battery from being discharged, do not leave the lights on longer than necessary when the hybrid system is not running. 23p005a To turn on the push the switch. emergency flashers, All the turn signal lights will flash. To turn them off, push the switch once again. Turn on the emergency flashers to warn other drivers if your vehicle must be stopped where it might be a traffic hazard. Always pull as far off the road as possible. The turn signal light switch will not work when the emergency flashers are operating. 106