Page 367 of 676
3675-2. Setup
5
Lexus Display Audio system
IS200t_EE(OM53D77E)
Go to “Display”: “MENU” button “Display”
Turn off screen.
Adjust screen quality.
Adjust screen quality of the rear
view monitor camera.
Change to day mode.
This setting turns the screen off. To turn it on, press any button such as the
“AUDIO” button or “MENU” button.
If a screen off image has been se t, the set image will be displayed.
When the headlights are turned on, the screen dims.
However, the screen can be switched to day mode by selecting “Day mode”.
The screen will stay in day mode when the headlights are turned on until “Day mode”
is selected again.
Display settings
Settings are available for adjusting the contrast and brightness of the screen.
The display can also be turned off.
Screen for display settings
1
2
3
4
Screen off
Day mode
Page 540 of 676

5407-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by any autho-
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
●Headlights
●Front position lights and daytime running lights
●Front turn signal lights (LED type)
●Side turn signal lights
●Stop/tail lights
●Tail lights
●Back-up light
●Rear turn signal lights
●Rear fog light
●High mounted stoplight
●License plate lights
■LED Lights
The lights other than the front turn signal lights (bulb type) and outer foot lights each con-
sist of a number of LEDs. If any of the LEDs burn out, take your vehicle to any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer to have the light
replaced.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact any authorized Lexus reta iler or Lexus authorized repairer, or any
reliable repairer for more information in the following situations:
●Large drops of water ha ve built up on the inside of the lens.
●Water has built up inside the headlight.
■When replacing the front turn signal lights (bulb type)
When the washer fluid filler op ening is removed with a large amount of washer fluid con-
tained in the washer tank, washer fluid may spill onto the vehicle and cleaning may be
required.
■When replacing light bulbs
P. 533
Page 541 of 676

5417-3. Do-it-yourself maintenance
7
Maintenance and care
IS200t_EE(OM53D77E)
WARNING
■Replacing light bulbs
●Turn off the lights. Do not attempt to replace the bulb immediately after turning off the
lights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. When it is unavoid-
able to hold the glass portion, use and hold with a clean dry cloth to avoid getting
moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or wate r entering the headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.
■To prevent damage or fire
●Make sure bulbs are fully seated and locked.
●Check the wattage of the bulb before installing to prevent heat damage.
NOTICE
■When replacing the outer foot lights
If the front window is stopping you from conducting the replace operation properly,
open the window on the side you are working on to allow you enough space to work.
Continuing the operation without giving yourself enough space to work could lead you
to scratch the vehicle.
Page 575 of 676
5758-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
Indicates a malfunction in:
• The automatic headlight leveling system; or
• The Automatic High Beam system (if equipped); or
• The LED headlight systemA buzzer also sounds.
Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
Indicates a malfunction in the RSA (Road Sign Assist)
A buzzer also sounds
Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Indicates that the accelerator and brake pedal are being
depressed simultaneously
Release the accelerator or brake pedal.
Indicates that the washer fluid level is low
Add washer fluid.
Warning messageDetails/Actions
(Flashes)
Page 577 of 676

5778-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
Indicates that the engine oil should be changed. (After
the engine oil is changed and the message has been
reset.)
Check and change the engine oil, and oil filter by
any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer. After changing the
engine oil, the message should be reset.
(If equipped)
Indicates that the fuel injectors require maintenance
Have any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer add injector
cleaner to the fuel tank and reset the message.
(If equipped)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.
Turn the high beam on and press the Automatic
High Beam switch again.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-collision braking and pre-
collision brake assist are stopped (The pre-collision
warning function will be operational)
Turn the VSC on. ( P. 343)
Warning messageDetails/Actions
Page 613 of 676

6138-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine again following correct starting procedures.
( P. 204)
●There may be a malfunction in the engine immobilizer system.
( P. 75)
One of the following may be the cause of the problem:
●The battery terminal connections may be loose or corroded.
●The battery may be discharged. ( P. 618)
The engine starting system may be malfunctioning due to an electrical problem
such as electronic key battery depletion or a blown fuse. However, an interim
measure is available to start the engine. ( P. 614)
If the engine will not start
If the engine will not start even though correct starting procedures are being
followed ( P. 204), consider each of the following points:
The engine will not start even though the starter motor operates nor-
mally.
The starter motor turns over slowly, the interior lights and headlights
are dim, or the horn does not so und or sounds at a low volume.
The starter motor does not turn over
Page 614 of 676

6148-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. (P. 618)
●There may be a malfunction in the steering lock system.
Contact any authorized Lexus retailer or Le xus authorized repairer, or any reliable
repairer if the problem cannot be repaired , or if repair procedures are unknown.
When the engine does not start, the following steps can be used as an interim
measure to start the engine if the engine switch is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.
The starter motor does not turn over , the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function
1
2
3
4
Page 620 of 676

6208-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
Once the vehicle’s engine has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at any authorized Lexus
retailer or Lexus authorized repairer, or an y reliable repairer as soon as possible.
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is stopped. (Vehicles with
a Stop & Start system: except when the engine is stopped by the Stop & Start system.)
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharge and the draining effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
●In some cases, it may not be possible to unlock the doors using the smart entry & start
system when the battery is discharged. Us e the wireless remote control or the mechan-
ical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery.
●Vehicles with Stop & Start system:
For a while after the battery terminals have been disconnected or reconnected, for a
while after the battery has been replaced, the Stop & Start system may not automati-
cally stop the engine for approximately 5 to 60 minutes.
■When exchanging the battery (vehicles with Stop & Start system)
Use a battery specified for use with the Stop & Start system and equivalent to a genuine
battery. If an unsupported battery is used, Stop & Start system functions may be
restricted to protect the battery.
Also, battery performance may decrease and the engine may not be able to restart.
Contact any authorized Lexus retailers or Le xus authorized repairers, or any reliable
repairers.
7