Jeep 2008 Grand Cherokee - Manual (Page 370)

HAZARD WARNING FLASHERS
Your vehicle’s hazard warning flasher is an emergency
warning system. When you activate it, all front and rear
directional signals will flash intermittently. Use it when
your vehicle is disabled on or near the road. It warns
other drivers to steer clear of you and your vehicle. This
is an emergency warning system, not to be used when the
vehicle is in motion.
To activate the warning flashers, press the button on the
upper switch bank. To turn the warning flashers off,
press the button again.
NOTE: With extended use, the flasher may run down
your battery.
Hazard Warning Switch
370 WHAT TO DO IN EMERGENCIES