Reduced Effectiveness Of The Eps System; Automatic Reactivation Of Trac And Vsc Systems; Operating Conditions Of Hill-Start Assist Control; Automatic System Cancelation Of Hill-Start Assist Control - Toyota Mirai 2017 Owner's Manual

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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 fuel cell system
off. The EPS system should return to normal within 10 minutes.
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Automatic reactivation of TRAC and VSC systems

After turning the TRAC and VSC systems off, the systems will be automati-
cally re-enabled in the following situations:
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When the power switch is turned off
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If only the TRAC system is turned off, the TRAC will turn on when vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases
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Operating conditions of hill-start assist control

When the following four conditions are met, the hill-start assist control will
operate:
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The shift position is in a position other than P or N (when starting off forward/
backward on an upward incline).
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The vehicle is stopped.
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The accelerator pedal is not depressed.
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The parking brake is not engaged.
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Automatic system cancelation of hill-start assist control

The hill-start assist control will turn off in any of the following situations:
●
Shift the shift position to P or N.
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The accelerator pedal is depressed.
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The parking brake is engaged.
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Approximately 2 seconds elapse after the brake pedal is released.
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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 35 mph (55 km/h).
●
The brake pedal is depressed in a manner that cause the system to judge
from the vehicle deceleration that this is a sudden braking operation.
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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.
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The system judges from the vehicle deceleration that is not a sudden brak-
ing operation.
5-5. Using the driving support systems
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