2015 LEXUS RX350 key battery

1001-4. Opening and closing the windows and moon roof
■
Door lock linked window operation ●
The power windows can be opened and closed using the mechanical key.
(  P. 7 9 3 )●
The power windows can be opened using the wireless remote control.
(  P. 4 9 )■
When the battery is disconnected
The window lock switch is disabled. If necessary, press the window lock switch after
reconnecting the battery.■
Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features  P. 8 3 4 )
CAUTION■
Closing the windows
Observe the following precautions.
Failing to do so may result in death or serious injury. ●
Check to make sure that all passengers do not have any part of their body in a
position where it could be caught when a window is being operated.●
Do not allow children to operate the power windows.
Closing a power window on someone can cause death or serious injury.
The driver is responsible for instructin g children not to operate the power win-
dows.■
Jam protection function ●
Never use any part of your body to intent ionally activate the jam protection func-
tion.●
The jam protection function may not work if something gets caught just before
the window fully closes. Also, the jam protection does not operate when the
power window switch is pulled up continually to close the windows.

1141-6. Theft deterrent system
■
System maintenance
The vehicle has a maintenance-free type alarm system.■
Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the
following: ●
Nobody is in the vehicle.●
The windows and moon roof are closed before the alarm is set.●
No valuables or other personal items are left in the vehicle.■
Tr i g g e r i n g o f t h e a l a r m
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■
Alarm-operated door lock
●
When the alarm is operating, the door s are locked automatically to prevent
intruders.
●
Do not leave the key inside the vehicle when the alarm is operating, and make
sure the key is not inside the vehicle when recharging or replacing the battery. ●
A person inside the vehicle opens a door
or the hood.
●
The battery is recharged or replaced
when the vehicle is locked.

1672-1. Driving procedures
2
When driving When stopping the engine with the shift lever in a position other than P
If the engine is stopped with the shift lever in a position other than P, the
“ENGINE START STOP” switch will not be turned off but instead be
turned to ACCESSORY mode. Perfor m the following procedure to turn
the switch off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that the indicator on the “ENGINE START STOP” switch
is illuminated in amber and th en press the “ENGINE START
STOP” switch once.
Check that the indicator on the “ENGINE START STOP” switch
is off.■
Auto power off function
When the shift lever is in P, if the vehicle is left in ACCESSORY or IGNITION ON
mode with the engine not running for more than 20 minutes (ACCESSORY mode)
or one hour (IGNITION ON mode), the “ENGINE START STOP” switch will auto-
matically turn off. However, this function cannot entirely prevent battery discharge.
Do not leave the vehicle with the “ENGINE START STOP” switch in ACCESSORY
or IGNITION ON mode for lo ng periods of time when the engine is not running.■
Operation of the “ENGINE START STOP” switch
When operating the “ENGINE START STOP” switch, one short, firm press is
enough. If the switch is pressed improperly, the engine may not start or the
“ENGINE START STOP” switch mode may not change. It is not necessary to press
and hold the switch.■
Electronic key battery depletion
 P. 4 5
■
Conditions affecting operation
 P. 4 2
■
Note for the entry function
 P. 4 3STEP 1
STEP 2
STEP 3
STEP 4

1682-1. Driving procedures
■
If the engine does not start
The engine immobilizer system may not have been deactivated. (  P. 1 1 0 )
Contact your Lexus dealer.■
Steering lock
After turning the “ENGINE START STOP” switch off and opening and closing the
doors, the steering wheel will be locked due to the steering lock function. Operat-
ing the “ENGINE START STOP” switch again automatically cancels the steering
lock.■
When the steering lock cannot be released
■
Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended
if the engine is turned on and off repeatedly in a short period of time. In this case,
refrain from operating the engine. After about 2 seconds, the steering lock motor
will resume functioning.■
When the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately.■
If the electronic key battery is depleted
 P. 7 0 1 The green indicator light on the “ENGINE
START STOP” switch will flash and a mes-
sage will be shown on the multi-information
display. Press the “ENGINE START STOP”
switch again while turning the steering wheel
left and right.

2142-3. Operating the lights and windshield wipers
■
Automatic light off system ●
When the headlights are on: The headlights and tail lights turn off 30 seconds
after a door is opened and closed if the “ENGINE START STOP” switch is
turned to ACCESSORY mode or turned off. (The lights turn off immediately
if on the key is pressed after all the doors are locked.)●
When only the tail lights ar e on: The tail lights turn off automatically if the
“ENGINE START STOP” switch is turned to ACCESSORY mode or turned off
and the driver’s door is opened.
To turn the lights on again, turn the “ENGINE START STOP” switch to IGNITION
ON mode, or turn the light switch off once and then back to or .
If any of the doors is kept open, the ligh ts automatically turn off after 20 minutes.■
Automatic headlight leveling system (if equipped)
The level of the headlights is automatica lly adjusted according to the number of
passengers and the loading condition of the vehicle to ensure that the headlights do
not interfere with other road users. ■
Light reminder buzzer (headlights)
A buzzer sounds when the “ENGINE START STOP” switch is turned off or turned
to ACCESSORY mode and the driver's door is opened while the headlights are
turned on.■
Illuminated entry system
If the wireless remote control switch is used to unlock the vehicle when the light
switch is in and the surrounding area is dark, the parking light turns on.■
Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features  P. 8 3 4 )
NOTICE
■
To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is off.

5973-5. Using the interior lights
3
Interior features ■
Illuminated entry system
The lights automatically turn on/off according to “ENGINE START STOP” switch
mode, the presence of the electronic key, whether the doors are locked/unlocked,
and whether the doors are open/closed.■
To prevent battery discharge
When the “ENGINE START STOP” switch is turned off, the lights will go off auto-
matically after 20 minutes. ●
Personal lights●
Interior lights●
Door courtesy lights●
Scuff lights (if equipped)●
Footwell lights■
Customization
Settings (e.g. the time elapsed before the lights turn off) can be changed.
(Customizable features  P. 8 3 4 ) Interior lights and personal lights

Maintenance and care
4
6494-1. Maintenance and care
Cleaning and protecting
the vehicle exterior............. 650
Cleaning and protecting
the vehicle interior .............. 653
4-2. Maintenance
Maintenance
requirements ........................ 656
General maintenance .......... 659
Emission inspection and
maintenance (I/M)
programs................................ 663 4-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ........................... 664
Hood ........................................... 667
Positioning a floor jack ......... 668
Engine compartment ............ 670
Tires............................................ 684
Tire inflation pressure........... 693
Wheels ....................................... 697
Air conditioning filter ........... 699
Electronic key battery........... 701
Checking and replacing
fuses ........................................ 703
Headlight aim ........................... 716
Light bulbs ................................. 719

7014-3. Do-it-yourself maintenance
4
Maintenance and care Electronic key battery Replace the battery with a new one if it is discharged.
■ You will need the following items:
● Flathead screwdriver
● Small Phillips-head sc rewdriver
● Lithium battery (CR1632)
■ Replacing the battery
Take out the mechanical key.
Remove the cover.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.STEP 1
STEP 2
STEP 3