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Turning off both TRAC/VSC systems
To turn the TRAC/VSC systems off, press and hold
onds while the vehicle is stopped.
Vehicles without multi-information display
The "TRAC OFF" and VSC OFF indicator lights will come on.
Vehicles with multi-information display
The VSC OFF indicator light will come on and the message will be shown on
the multi-information display.
Press
again to turn the systems back on.
*
: On vehicles with pre-collision system, pre-collision brake assist and pre-
collision braking will also be disabled. The PCS warning light will come on
and the message will be shown on the multi-information display. (P. 493)
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When the "TRAC OFF" indicator comes on/message is displayed on the
multi-information display showing that TRAC has been disabled even if
the VSC OFF switch has not been pressed
TRAC cannot be operated. Contact your Toyota dealer.
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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.
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The brake pedal may pulsate slightly after the ABS is activated.
●
The brake pedal may move down slightly after the ABS is activated.
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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 the engine 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 engine compartment when 1 or 2 minutes
passed after the stop of the hybrid system.
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EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
PRIUS v_OM_OM47B23U_(U)
4-5. Using the driving support systems
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251
for more than 3 sec-
4
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Table of Contents
Troubleshooting
