stop start LEXUS IS250 2016 Service Manual

171
2-4. Using other driving systems
2

When driving
nSelect cruise mode
Selecting vehicle-to-vehicle dis-
tance control mode
Turn the “ON-OFF” button
on.
Push the button once more to
deactivate.
Selecting conventional con-
stant speed control mode
Turn the “ON-OFF” button
on.
Push the button once more to
deactivate.
Vehicle-to-vehicle distance con-
trol mode is always reset when
the “ENGINE START STOP”
switch is switched to IGNITION
ON mode.
Switch to constant speed
control mode.
(push and hold for approxi-
mately one second)

173
2-4. Using other driving systems
2

When driving
nCanceling and resuming the speed setting
Cancel
Push the lever towards you to
cancel cruise control.
The setting is also canceled
when the brakes are applied.
Resume
To resume cruise control and
return to the set speed, push the
lever up.
nChanging the vehicle-to-vehicle distance
Each push of the switch changes
the vehicle-to-vehicle distance
Long
Medium
Short
The vehicle-to-vehicle distance
is automatically set to the long
mode when the “ENGINE
START STOP” switch is
switched to IGNITION ON
mode.
A mark will be displayed to indi-
cate the presence of the vehicle
if a vehicle is running ahead of
you.
Preceding
vehicle mark

186
2-4. Using other driving systems
Driving assist systems
To help enhance driving safety and performance, the following systems
operate automatically in response to various driving situations. Be aware,
however, that these systems are supplementary and should not be relied
upon too heavily when operating the vehicle.
nABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface.
nBrake assist
Generates an increased level of braking force after the brake pedal is
depressed, when the system detects a panic stop situation.
nVSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on
slippery road surfaces.
nTRAC (Traction Control)
Maintains drive power and prevents the rear wheels (2WD models) or all
wheels (AWD models) from spinning when starting the vehicle or acceler-
ating on slippery roads.
nHill-start assist control (vehicles with an automatic transmission)
Prevents the vehicle from rolling backwards when starting on an incline or
slippery slope.
nEPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel.

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

190
2-4. Using other driving systems
nHill-start assist control is operational when
lThe shift lever is in the D or S position.
lThe brake pedal is not depressed.
nEPS operation sound
When the steering wheel operates, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.
nReduced effectiveness of EPS
The effectiveness of EPS 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 engine OFF. The system should return to normal within
10 minutes.
CAUTION
nThe ABS does not operate effectively when
lThe limits of tire gripping performance have been exceeded.
lThe vehicle hydroplanes while driving at high speed on the wet or slick road.
nStopping distance when the ABS is operating will exceed that of normal condi-
tions
The ABS is not designed to shorten the vehicle’s stopping distance. Always main-
tain a safe distance from the vehicle in front of you in the following situations.
lWhen driving on dirt, gravel or snow-covered roads
lWhen driving with tire chains
lWhen driving over bumps in the road
lWhen driving over roads with potholes or roads with uneven roads

207
2-5. Driving information
2

When driving
NOTICE
nDinghy towing direction
nTo prevent the steering from locking
Ensure the “ENGINE START STOP” switch is in ACCESSORY mode.
Do not tow the vehicle backwards.
Doing so may cause serious damage.

218
3-1. Using the air conditioning system and defogger
Rear window and outside re ar view mirror defoggers
nThe defogger can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
CAUTION
nWhen the outside rear view mirror defoggers are on
Do not touch the outside surface of the rear view mirror, as it can become very hot
and burn you.
These features are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
On/off
The defoggers will automatically
turn off after approximately 15
minutes.

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

252
3-4. Using the storage features
Console boxes
Front
Pull up the knob to release the
lock.
Slide the armrest.
Pull up the knob to release the
lock.
Lift the armrest to open.
Rear (if equipped)
Press the button to release the
lock.
Lift the armrest to open.
nGlove box light
The glove box light turns on when the “ENGINE START STOP” switch is in IGNI-
TION ON mode.
nTrunk opener main switch
The trunk opener main switch located in the glove box. (→ P. 4 3 )
CAUTION
nCaution while driving
Keep the glove box closed.
Injuries may result in the event of an accident or sudden braking.
Glove box and console boxes

253
3-4. Using the storage features
3

Interior features
Overhead console
The overhead console is useful for
temporarily storing sunglasses and
similar small items.
nConsole box light (front)
The console box light turn on when the “ENGINE START STOP” switch is in IGNI-
TION ON mode.
nUsing the front console box to store CD cases
CAUTION
nCaution while driving
Keep the console box closed.
Injuries may result in the event of an accident or sudden braking.
Store a CD case with the hinged portion fac-
ing either the front or back of the console
box.
Console boxes and overhead console