The emergency flashers are used to warn other drivers when the vehicle has to be stopped in the road to a breakdown, etc.
Press the switch.
All the turn signals will flash.
To turn them off, press the switch once again.

Emergency flashers
If the emergency flashers are used for a long time while the engine is not operating, the battery may discharge.
If your vehicle has to
be stopped in an
emergencyDisassembly
Caution:
Wear protective gloves. Sharp areas on the seat frame
(with adjuster) may injure your hands.
Remove reclining power seat switch knob
Using a screwdriver, detach the knob.
Hint:
Tape the screwdriver tip before use.
Remove slide and vertical power seat switch knob
...
Reassembly (2006/01- )
Install drive shaft bearing case subassembly
(for rh)
Install the bearing snap ring.
Using sst and a press, press in the drive shaft
bearing case to the inboard joint rh.
Sst 09527-10011, 09710-04081
Notice:
The bearing should be installed completely.
Using a snap rin ...
Toyota Safety Sense 2.5
The Toyota Safety Sense
2.5 consists of the following
drive assist systems and
contributes to a safe and
comfortable driving experience:
Driving assist system
PCS (Pre-Collision System)
LTA (Lane Tracing Assist)
AHB (Automatic High
Beam)
RSA (Road Sign Assist) (if
equipped)
Dynamic radar cru ...