light Lexus IS250 2014 If your vehicle needs to be towed / LEXUS 2014 IS250,IS350 (OM53758U) Workshop Manual

1413-5. Opening, closing the windows and moon roof
3
Operation of each component
IS350/250_U (OM53758U)
■The moon roof can be operated when
The engine switch is in IGNITION ON mode.
■Operating the moon roof after turning the engine off
The moon roof can be operated for approximately 45 seconds after the engine switch is
turned to ACCESSORY mode or turned off. It cannot, however, be operated once either
front door is opened.
■Jam protection function
If an object is detected between the moon roof and the frame while the moon roof is clos-
ing or tilting down, travel is stoppe d and the moon roof opens slightly.
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will open
automatically when the moon roof is opened.
■Door lock linked moon roof operation
●The moon roof can be opened and closed using the mechanical key.* ( P. 4 8 8 )
●The moon roof can be opened us ing the wireless remote control.* ( P. 1 0 3 )
*: These settings must be customized at your Lexus dealer.

1423-5. Opening, closing the windows and moon roof
IS350/250_U (OM53758U)
■When the moon roof does not close normally
Perform the following procedure:
●If the moon roof closes but then re-opens slightly
Stop the vehicle.
Press and hold the “CLOSE” switch.
*1
The moon roof will close, reopen and pause for approximately 10 seconds.*2 Then it
will close again, tilt up and pause for approx imately 1 second. Finally, it will tilt down,
open and close.
Check to make sure that the moon roof is completely closed and then release the
switch.
●If the moon roof tilts down but then tilts back up
Stop the vehicle.
Press and hold the “UP” switch
*1 until the moon roof moves into the tilt up position
and stops.
Release the “UP” switch once and then press and hold the “UP” switch again.
*1
The moon roof will pause for approximatel y 10 seconds in the tilt up position.*2
Then it will adjust slightly and pause for approximately 1 second. Finally, it will tilt
down, open and close.
Check to make sure that the moon roof is completely closed and then release the
switch.
*1: If the switch is released at the incorrec t time, the procedure will have to be per-
formed again from the beginning.
*2: If the switch is released after the above mentioned 10 second pause, automatic operation will be disabled. In that case, press and hold the “CLOSE” or “UP” switch,
and the moon roof will tilt up and pause fo r approximately 1 second. Then it will tilt
down, open and close. Check to make sure that the moon roof is completely closed
and then release the switch.
If the moon roof does not fully close even after performing the above procedure cor-
rectly, have the vehicle inspected by your Lexus dealer.
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145
Driving4
IS350/250_U (OM53758U)
4-1. Before drivingDriving the vehicle ...................... 146
Cargo and luggage .................... 153
Vehicle load limits ....................... 156
Trailer towing ................................. 157
Dinghy towing...............................158
4-2. Driving procedures Engine (ignition) switch ............ 159
Automatic transmission ............ 164
Turn signal lever ........................... 170
Parking brake .................................172
4-3. Operating the lights and wipers
Headlight switch ...........................173
Automatic High Beam ............... 176
Fog light switch.............................. 181
Windshield wipers and washer........................................... 182
4-4. Refueling Opening the fuel tank cap.......188 4-5. Using the driving support
systems
Cruise control .............................. 192
Dynamic radar cruise control .......................................... 196
LDA (Lane Departure Alert) ........208
Intuitive parking assist ................214
Rear view monitor system ........221
Driving mode select switch ............................................ 231
Driving assist systems............... 234
PCS (Pre-Collision System).......... 240
BSM (Blind Spot Monitor) ..... 246 • The Blind Spot Monitor function .................................... 249
• The Rear Cross Traffic Alert function.......................... 251
4-6. Driving tips Winter driving tips ..................... 254

1484-1. Before driving
IS350/250_U (OM53758U)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the engine running. This
prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accelerator ped-
als to avoid depressing the wrong pedal.
• Accidentally depressing th e accelerator pedal instead of the brake pedal will
result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to a difficulty in oper-
ating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle only slightly. This allows you to depress th e brake and accelerator pedals properly.
• Depress the brake pedal using your righ t foot. Depressing the brake pedal using
your left foot may delay response in an emergency, resulting in an accident.
●Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot parts may
cause a fire if there is any flammable material nearby.
●During normal driving, do not turn off the engine. Turning the engine off while driving
will not cause loss of steering or braking co ntrol, but the power assist to these systems
will be lost. This will make it more difficul t to steer and brake, so you should pull over
and stop the vehicle as soon as it is safe to do so.
However, in the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: P. 4 4 7
●Use engine braking (downshift) to maintain a safe speed when driving down a steep
hill.
Using the brakes continuously may cause th e brakes to overheat and lose effective-
ness. ( P. 1 6 4 )
●Do not adjust the positions of the steering wh eel, the seat, or the inside or outside rear
view mirrors while driving.
Doing so may result in a loss of vehicle control.
●Always check that all passengers’ arms, heads or other parts of their body are not
outside the vehicle.
●Do not drive in excess of the speed limit. Ev en if the legal speed limit permits it, do not
drive over 85 mph (140 km/h) unless your vehicle has high-speed capability tires.
Driving over 85 mph (140 km/h) may result in tire failure, loss of control and possible
injury. Be sure to consult a tire dealer to determine whether the tires on your vehicle
are high-speed capability tires or not before driving at such speeds.

1494-1. Before driving
4
Driving
IS350/250_U (OM53758U)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving on slippery road surfaces
●Sudden braking, acceleration and steering may cause tire slippage and reduce your
ability to control the vehicle.
●Sudden acceleration, engine braking due to shift changing, or changes in engine
speed could cause the vehicle to skid.
●After driving through a puddle, lightly depress the brake pedal to make sure that the
brakes are functioning properly. Wet brake pads may prevent the brakes from func-
tioning properly. If the brakes on only on e side are wet and not functioning properly,
steering control may be affected.
■When shifting the shift lever
●Do not let the vehicle roll backward while the shift lever is in a driving position, or roll
forward while the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering perfor-
mance, resulting in an acciden t or damage to the vehicle.
●Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to D while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Shifting the shift lever to N while the vehicle is moving will disengage the engine from
the transmission. Engine braking is not available when N is selected.
●Be careful not to shift the shift lever with the accelerator pedal depressed. Shifting the
shift lever to a gear other than P or N may lead to unexpected rapid acceleration of
the vehicle that may cause an accident and result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indicators)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
Front brakes only: Moderate levels of brake pad and disc wear allow enhanced front
braking power. As a result, the discs may wear more quickly than conventional brake
discs. Therefore, when replacing the brake pads, Lexus recommends that you also
have the thickness of the discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded.

1504-1. Before driving
IS350/250_U (OM53758U)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When the vehicle is stopped
●Do not race the engine.
If the shift lever is any position other than P or N, the vehicle may accelerate suddenly
and unexpectedly, causing an accident.
●In order to prevent accidents due to the vehicle rolling away, always keep depressing
the brake pedal while the engine is running, and apply the parking brake as neces-
sary.
●If the vehicle is stopped on an incline, in order to prevent accidents caused by the
vehicle rolling forward or backward, always depress the brake pedal and securely
apply the parking brake as needed.
●Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause the exhaust
system to overheat, which could result in a fire if combustible material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette lighters, sp ray cans, or soft drink cans in the vehicle
when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cause the plastic lenses and plastic mate- rial of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the interior of the
vehicle, and may also cause a short circuit in the vehicle’s electrical components.
●Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a place such as
the glove box or on the floor, it may be lit accidentally when luggage is loaded or the
seat is adjusted, causing a fire.
●Do not attach adhesive discs to the windsh ield or windows. Do not place containers
such as air fresheners on the instrument panel or dashboard. Adhesive discs or con-
tainers may act as lenses, causing a fire in the vehicle.
●Do not leave a door or window open if the curved glass is coated with a metallized
film such as a silver-colored one. Reflected sunlight may cause the glass to act as a
lens, causing a fire.
●Always apply the parking brake, shift the shift lever to P, stop the engine and lock the
vehicle.
Do not leave the vehicle unattend ed while the engine is running.
●Do not touch the exhaust pipes while the engine is running or immediately after turn-
ing the engine off.
Doing so may cause burns.

1634-2. Driving procedures
4
Driving
IS350/250_U (OM53758U)
NOTICE
■To prevent battery discharge
●Do not leave the engine switch in ACCESSORY or IGNITION ON mode for long
periods of time without the engine running.
●If “ACCESSORY” or “IGNITION ON” is disp layed on the meters while the engine is
not running, the engine switch is not off. Exit the vehicle after turning the engine
switch off.
●Do not stop the engine when the shift lever is in a position other than P. If the engine is
stopped in another shift lever position, the engine switch will not be turned off but
instead be turned to ACCESSORY mode. If the vehicle is left in ACCESSORY
mode, battery discharge may occur.
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start or stalls frequently, have your vehicle checked
by your Lexus dealer immediately.
■Symptoms indicating a malfun ction with the engine switch
If the engine switch seems to be operating somewhat differently than usual, such as the
switch sticking slightly, there may be a malf unction. Contact your Lexus dealer immedi-
ately.

1714-2. Driving procedures
4
Driving
IS350/250_U (OM53758U)
■Turn signals can be operated when
The engine switch is in IGNITION ON mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
■If the turn signals stop flashing before a lane change has been performed
Operate the lever again.
■Customization
The number of times the turn signals flash during a lane change can be changed.
(Customizable feature P. 5 2 5 )

173
4
Driving
IS350/250_U (OM53758U)4-3. Operating the lights and wipers
Turning the end of the lever turns on the lights as follows:
Headlight switch
The headlights can be operated manually or automatically.
Operating instructions
U.S.A. Canada
The side marker, parking, tail,
license plate and instrument
panel lights turn on.
The headlights and all lights
listed above turn on.
The headlights, daytime run-
ning lights and all the lights
listed above turn on and off
automatically.
(When the engine switch is in
IGNITION ON mode.)
Off
The daytime running lights
turn on.1
2
3
4
(U.S.A.)
(Canada)

1744-3. Operating the lights and wipers
IS350/250_U (OM53758U)
With the headlights on, push the
lever away from you to turn on the
high beams.
Pull the lever toward you to the center
position to turn the high beams off.
Pull the lever toward you and release
it to flash the high beams once.
You can flash the high beams with the
headlights on or off.
■Daytime running light system
●To make your vehicle more visible to other drivers, the parking lights turn on automati-
cally (at an increased intensity) whenever th e engine is started and the parking brake is
released. Daytime running lights ar e not designed for use at night.
●Compared to turning on the headlights, the daytime running light system offers greater
durability and consumes less electricity, so it can help improve fuel economy.
■Headlight control sensor
■Automatic light off system
When the light switch is in , or : The headlights and tail lights turn off 30
seconds after the engine switch is turned to ACCESSORY mode or turned off and a
door is opened and all of the doors and trunk are closed. (The lights turn off immediately
if on the key is pressed twice after all the doors are closed.)
To turn the lights on again, turn the engine switch to IGNITION ON mode, or turn the
light switch off once and then back to or .
If any of the doors or trunk lid is left open, the lights automatically turn off after 20 min-
utes.
■Automatic headlight leveling system
The level of the headlights is automatically ad justed according to the number of passen-
gers and the loading condition of the vehicle to ensure that the headlights do not inter-
fere with other road users.
Turning on the high beam headlights
1
2
The sensor may not function properly if an
object is placed on the sensor, or anything that
blocks the sensor is affixed to the windshield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.