Lexus SC430 Quick Manual page 17

Emergency Flasher Switch
ECT Switch
Use to select a mode suitable to driving and road conditions.
17
All the turn signal lights will flash.
The emergency flashers will work even when the
engine is off.
"Power" mode
1
For more powerful acceleration and sporty
driving
"Normal" mode
2
For ordinary driving
"Snow" mode
3
For slippery road surfaces and slower
acceleration
The indicator light comes on when in "Power" or
"Snow" mode.