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297
5-5. Using the driving support systems
5
Driving
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
■ Turning off both TRAC and VSC systems
To turn the TRAC and VSC systems off, press and hold for more than 3
seconds while the vehicle is stopped.
The VSC OFF indicator will come on and the “TRAC OFF” is displayed on the
multi-information display.
Press again to turn the systems back on.
Pre-collision brake assist and pre-collision braking will also be disabled. The
PCS warning light will come on and the message is shown on the multi-infor-
mation display. (P. 237)
■ When the message is displayed on the multi-information display show-
ing that TRAC has been disabled even if has not been pressed
TRAC and hill-start assist control cannot be operated. Contact your Toyota
dealer.
■ Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and
hill-start assist control systems
Any of the following conditions may occur when the above systems are oper-
ating. None of these indicates that a malfunction has occurred.
● Vibrations may be felt through the vehicle body and steering.
● A motor sound may be heard after the vehicle comes to a stop.
● The brake pedal may pulsate slightly after the ABS is activated.
● The brake pedal may move down slightly after the ABS is activated.
■ ECB operating sound
ECB operating sound may be heard in the following cases, but it does not
indicate that a malfunction has occurred.
● Operating sound heard from motor compartment when the brake pedal is
operated.
● Motor sound of the brake system heard from the front part of the vehicle
when the driver’s door is opened.
● Operating sound heard from the motor compartment when 1 or 2 minutes
passed after the stop of the fuel cell system.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
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