2016 LEXUS IS250 light

187
2-4. Using other driving systems
2

When driving
When the VSC/TRAC/hill-start assist control systems are operating
If the vehicle is in danger of slip-
ping, rolling backwards when
starting on an incline, or if the rear
wheels (2WD) or 4 wheels
(AWD) spin, the slip indicator light
flashes to indicate that the VSC/
TRAC/hill-start assist control sys-
tems have been engaged.
A buzzer (intermittent) sounds to
indicate that VSC is operating.
The stop lights and high mounted
stoplight turn on when the hill-start
assist control system is operating.
n VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, brake assist, TRAC, VSC, hill-start
assist control, and EPS systems.
Maintains vehicle stability when swerving on slippery road surfaces by
controlling the brakes and engine output.
nPCS (Pre-Collision System) (if equipped)
→P. 19 2

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2-4. Using other driving systems
To disable TRAC and/or VSC
If the vehicle gets stuck in fresh snow or mud, TRAC and VSC may
reduce power from the engine to the wheels. You may need to turn the
system off to enable you to rock the vehicle in order to free it.
nTurning off TRAC
Quickly push and release the but-
ton to turn off TRAC.
A message will be shown on the
multi-information display.
Push the button again to turn the
system back on.
nTurning off TRAC and VSC
Push and hold the button for more
than 3 seconds while the vehicle is
stopped to turn off TRAC and
VSC.
A message will be shown on the
multi-information display and VSC
off indicator light will come on.
Push the button again to turn the
system back on.

191
2-4. Using other driving systems
2

When driving
CAUTION
nTRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
nIf hill-start assist control does not operate effectively
(vehicles with an automatic transmission)
The hill-start assist control may not operate effectively on steep inclines and roads
covered in ice.
nWhen the VSC is activated
The slip indicator light flashes and a warning buzzer sounds. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the indica-
tor light flashes and a buzzer sounds.
nWhen TRAC and VSC are off
Be especially careful and drive at a speed appropriate to the road conditions. As
there are systems to ensure vehicle stability and driving force, do not turn off TRAC
and VSC unless necessary.
nReplacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
pressure level.
The ABS and VSC systems will not function correctly if different tires are fitted on
the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels.
nHandling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the driv-
ing assist systems, and may cause the system to malfunction.

195
2-4. Using other driving systems
2

When driving
CAUTION
nLimitations of the pre-collision system
Do not rely on the pre-collision system. Always drive safely, taking care to observe
your surroundings and checking for any obstacles or other road hazards.
nHandling the radar sensor
Observe the following to ensure the pre-collision system can function effectively.
lKeep the sensor and front grille clean at all times.
Clean the sensor and front grille with a soft cloth so you do not mark or damage
them.
lDo not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunction. If the
sensor or surrounding area are subject to a strong impact, always have the area
inspected and adjusted by a Lexus dealer.
lDo not disassemble the sensor.
lDo not attach accessories or stickers to the sensor, grille guard or surrounding
area.

216
3-1. Using the air conditioning system and defogger
Rear outlets
Direct air flow to the left or right,
up or down
Turn the knob fully to the outside
of the vehicle to close the vent
nUsing the automatic mode
Fan speed is adjusted automatically in accordance with the temperature setting and
ambient conditions. As a result, the following may occur.
lThe system may switch automatically to recirculated mode when the coolest
temperature setting is selected in summer.
lImmediately after is pressed, the fan may stop for a while until warm or
cool air is ready to flow.
lCool air may flow to the area around the upper body when the heater is on.
nUsing the system in recirculated air mode
The windows will fog up more easily if the recirculated air mode is used for an
extended period.
nWindow defogger feature
Recirculated air mode may automatically switch to (outside air) mode in situ-
ations where the windows need to be defogged.
nWhen outside air temperature approaches 32°F (0°C)
The air conditioning system may not operate even when is pressed.
nWhen the indicator light on flashes
Press and turn off the air conditioning system before turning it on once
more. There may be a problem in the air conditioning system if the indicator light
continues to flash. Turn the air conditioning system off and have it inspected by your
Lexus dealer.

234
3-2. Using the audio system
NOTICE
nCD player precautions
Failure to follow the precautions below may result in serious damage to the CDs or
the player itself.
lDo not insert anything other than CDs into the CD slot.
lDo not apply oil to the CD player.
lStore CDs away from direct sunlight.
lNever try to disassemble any part of the CD player.
lCDs with a transparent or translucent
recording area.
lCDs that have had tape, stickers or CD-R
labels attached to them, or that have had
the label peeled off.
lDo not insert more than one CD at a time.

247
3

Interior features
3-3. Using the interior lights
Interior lights list
Your Lexus is equipped with the illuminated entry system to assist in enter-
ing the vehicle. Owing to the function of the system, the lights shown in the
following illustration automatically turn on/off according to the presence of
the electronic key, whether the doors are locked/unlocked, whether the
doors are opened/closed, and the “ENGINE START STOP” switch mode.
Front personal lights (→P. 2 4 9 )
Front interior light (→P. 2 4 9 )
Front overhead courtesy light
Rear personal lights (→P. 2 4 9 )
Rear interior light
Rear overhead courtesy light
Shift lever light (when “ENGINE START STOP” switch is in
ACCESSORY or IGNITION ON mode)
Front foot well lighting

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3-3. Using the interior lights
nTo prevent the battery from being discharged
If the overhead courtesy lights and interior lights remain on when the door is not
fully closed and the interior light switch (door position on/off) is on, the lights will go
off automatically after 20 minutes.
nCustomization that can be configured at Lexus dealer
Setting (e.g. The time elapsed before lights turn off) can be changed. (Customiz-
able features →P. 4 6 1 )
Front door courtesy light
Front scuff lighting (if equipped)
Outer foot lights
Turning the instrument panel light control knob fully to the left disables the
shift lever lighting and front foot well lighting.