Page 447 of 676
4476-1. Basic operation of the Remote Touch screen
6
Interior features
RX350/RX200t_EE_OM48E36E
Press the “MENU” button on the Remote Touch to display the “Menu” screen.
When the split-screen display is selected, the “Menu” screen will be displayed on the
main display. ( P. 448)
*1: If equipped
*2: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
“Menu” screen
SwitchFunction
*1Select to display the map screen or the navigation menu screen.*2
Select to display the radio control screen.*2
Select to display the media control screen.*2
Select to display the hand s-free operation screen.*2
Select to display the fuel consumption screen. ( P. 115)
Select to display the “Information” screen.*2
Select to display the air conditioning control screen. ( P. 450)
Select to display the “Setup” screen.*2
“Display”Select to adjust the contrast and brightness of the screens, turn the
screen off, etc.*2
Page 448 of 676
4486-1. Basic operation of the Remote Touch screen
RX350/RX200t_EE_OM48E36E
■Full screen display
The following functions can be displayed full screen:•Initial screen
•“Menu” screen ( P. 447)
•Map screen
*
•Audio screen*
• Fuel consumption screen ( P. 115)
• Air conditioning control screen ( P. 450)
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN-
UAL”.
■Split-screen display
Different information can be displayed on the left and right of the screen. For
example, audio screen can be displayed and operated while the fuel con-
sumption information screen is being displayed. The large screen on the left of
the display is called the main display, and the small screen to the right is called
the side display.
10.3-inch display
: If equipped
10.3-inch display overview
Page 450 of 676
450
IS200t_EE(OM53D77E)6-2. Using the air conditioning system
Automatic air conditioning system
Air outlets and fan speed are automatically adjusted according to the tem-
perature setting.
Vehicles with a Lexus Display Audio system: Press the “MENU” button on the
Lexus Display Audio controller, then sele
ct “Climate” to display the air condi-
tioning operation screen.
For details on the Lexus Display Audio controller, refer to “Lexus Display
Audio controller” on P. 354.
Vehicles with a 10.3-inch display: Pr ess the “MENU” button on the Remote
Touch, then select to display the ai r conditioning control screen. The air
conditioning system can be displayed and operated on the side display.
( P. 449)
The illustrations below are for left-hand drive vehicles.
The button positions and shapes will di ffer for right-hand drive vehicles.
Also, the display and button positions will differ depending on the type of the
system.
Page 506 of 676

5067-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
■Adding distilled waterRemove the vent plug.
Add distilled water.
If the “UPPER LEVEL” line cannot be
seen, check the fluid level by looking
directly at the cell.
Put the vent plug back on and close it securely.
■Before recharging
When recharging, the battery produces hydr ogen gas which is flammable and explosive.
Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect the ground
cable.
●Make sure the power switch on the charger is off when connecting and disconnecting
the charger cables to the battery.
■After recharging/reconnecting the battery
The engine may not start. Follow the procedure below to initialize the system.
Shift the shift lever to P.
Open and close an y of the doors.
Restart the engine.
●Unlocking the doors using the smart entry & start system may not be possible immedi-
ately after reconnecting the battery. If this happens, use the wireless remote control or
the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACCESSORY mode. The engine may not
start with the engine switch turned off. However, the engi ne will operate normally from
the second attempt.
●The engine switch mode is recorded by the vehicle. If the battery is disconnected and
reconnected, the vehicle will return the engi ne switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine before discon-
necting the battery. Take extra care when connecting the battery if the engine switch
mode prior to the battery being disconnected is unknown.
If the engine will not start even after multip le attempts at all the methods contact any
authorized Lexus retailer or Lexus author ized repairer, or any reliable repairer.
1
LowO.K.2
3
1
2
3
Page 528 of 676

5287-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
■Use a CR2032 lithium battery
●Batteries can be purchased at any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer, local electrical appliance shops or camera stores.
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to local laws.
■When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at your Lexus dealer. Your Lexus dealer can
replace the battery for you.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart entry & start system and wireless remote control will not function properly.
●The operational range will be reduced.
■Certification for the key battery
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to the local laws.
4
Page 529 of 676
5297-3. Do-it-yourself maintenance
7
Maintenance and care
IS200t_EE(OM53D77E)
WARNING
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking. Keep away
from children. Failure to do so could result in death or serious injury.
■Lithium battery precautions
CAUTION:
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote control.
●Do not bend either of the battery terminals.
Page 615 of 676
6158-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
■Doors
Use the mechanical key (P. 123)
in order to perform the following
operations:
Locks all the doors
Closes the windows and moon
roof (turn and hold)
*
Unlocks all the doors
Opens the windows and moon
roof (turn and hold)
*
*
: This setting must be customized at any authorized Lexus retailer or Lexus autho- rized repairer, or any reliable repairer.
■Trunk
Turn the mechanical key clockwise
to open.
If the electronic key does not operate properly
If communication between the electronic key and vehicle is interrupted ( P.
143) or the electronic key cannot be used because the battery is depleted,
the smart entry & start system and wireless remote control cannot be used. In
such cases, the doors and trunk can be opened and the engine can be started
by following the procedure below.
Locking and unlocking the doors, unlocking the trunk and key linked
functions
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