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When the message is displayed on the
■
multi-information display showing that
TRAC has been disabled even if the
switch has not been pressed
TRAC is temporary deactivated. If the infor-
mation continues to show, contact your
Lexus dealer.
Operating conditions of hill-start assist
■
control
When the following four conditions are met,
the hill-start assist control will operate:
●
The shift position is in a position other
than P or N (when starting off for-
ward/backward on an upward incline)
The vehicle is stopped
●
●
The accelerator pedal is not depressed
●
The parking brake is not engaged
Engine switch is turned to ON
●
■
Automatic system cancelation of
hill-start assist control
The hill-start assist control will turn off in any
of the following situations:
●
The shift position is shifted to P or N
●
The accelerator pedal is depressed
The brake pedal is depressed and the
●
parking brake is engaged
●
A maximum of 2 seconds have elapsed
after the brake pedal is released
Engine switch is turned to OFF
●
■
Sounds and vibrations caused by the
ABS, brake assist, VSC, Trailer Sway
Control, TRAC and hill-start assist con-
trol systems
A sound may be heard from the engine
●
compartment when the brake pedal is
depressed repeatedly, when the engine is
started or just after the vehicle begins to
move. This sound does not indicate that a
malfunction has occurred in any of these
systems.
●
Any of the following conditions may
occur when the above systems are oper-
ating. None of these indicates that a mal-
function has occurred.
• Vibrations may be felt through the vehicle
body and steering.
4-5. Using the driving support systems
• A motor sound may be heard also 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.
■
Active Cornering Assist operation
sounds and vibrations
When the Active Cornering Assist is oper-
ated, operation sounds and vibrations may
be generated from the brake system, but
this is not a malfunction.
■
EPS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■
Reduced effectiveness of the EPS sys-
tem
The effectiveness of the EPS system is
reduced to prevent the system from over-
heating 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 engine off. The EPS system should
return to normal within 10 minutes.
Automatic reactivation of TRAC, Trailer
■
Sway Control and VSC systems
After turning the TRAC, Trailer Sway Con-
trol and VSC systems off, the systems will
be automatically re-enabled in the following
situations:
When the engine switch is turned off
●
●
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.
Operating conditions of Active Corner-
■
ing Assist
The system operates when the following
occurs.
●
TRAC/VSC can operate
The driver is attempting to accelerate
●
while turning
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4
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