Lexus IS300H 2017 Manual page 356

356
4-5. Using the driving support systems
Automatic reactivation of TRC and VSC systems
■
After turning the TRC and VSC systems off, the systems will be automatically re-enabled
in the following situations:
When the power switch is turned off
●
If only the TRC system is turned off, the TRC will turn on when vehicle speed increases
●
If both the TRC and VSC systems are turned off, automatic re-enabling will not occur
when vehicle speed increases.
Reduced effectiveness of the EPS system
■
The effectiveness of the EPS system is reduced to prevent the system from overheating
when there is frequent steering input over an extended period of time. The steering
wheel may feel heavy as a result. Should this occur, refrain from excessive steering input
or stop the vehicle and turn the hybrid system off. The EPS system should return to nor-
mal within 10 minutes.
Operating conditions of emergency brake signal
■
When the following three conditions are met, the emergency brake signal will operate:
The emergency flashers are off
●
Actual vehicle speed is over 55 km/h (35 mph)
●
The brake pedal is depressed in a manner that cause the system to judge from the vehi-
●
cle deceleration that this is a sudden braking operation
Automatic system cancelation of emergency brake signal
■
The emergency brake signal will turn off in any of the following situations:
The emergency flashers are turned on
●
The brake pedal is released
●
The system judges from the vehicle deceleration that is not a sudden braking operation
●