2014 LEXUS LX570 key battery

1211-6. Theft deterrent system
1
Before driving
LX570_OM_OM60L21U_(U) ■
When the battery is disconnected
Be sure to cancel the alarm system.
If the battery is disconnected before can celing the alarm, the system may be trig-
gered when the battery is reconnected. ■
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.■
Pa n i c m o d e
NOTICE■
To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation
of the system cannot be guaranteed. When is pressed for longer than about
one second, the head lights/tail lights/emer-
gency flashers will flash, the front and rear
interior lights will come on, and an alarm will
sound for about 60 seconds to deter any
person from trying to break into or damage
your vehicle.
To stop the alarm, press any button on the
wireless remote control.

1772-1. Driving procedures
2
When driving
LX570_OM_OM60L21U_(U) ■
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. ■
When the steering lock cannot be released
■
If the engine does not start
The engine immobilizer system may not have been deactivated. (  P. 117)
Contact your Lexus dealer. ■
When the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately. ■
Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes with the shift
lever in P, the “ENGINE START STOP” switch will automatically turn off. However,
this function cannot entirely prevent ba ttery discharge. Do not leave the vehicle
with the “ENGINE START STOP” switch in ACCESSORY mode for long periods
of time when the engine is not running. ■
Electronic key battery depletion
 P. 4 1■
When the electronic key battery is discharged
 P. 8 6 7■
Conditions affecting operation
 P. 3 9 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.

6853-6. Using the interior lights
3
Interior features
LX570_OM_OM60L21U_(U) Luggage compartment light
Off
Door position■
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
If the interior lights remain on when the “ENGINE START STOP” switch is turned
off, the lights will go off automatically after 20 minutes. ■
Customization
Settings (e.g. Time period before the inte rior lights turn off.) can be changed.
(Customizable features  P. 9 0 6 ) Luggage compartment light

Maintenance and care
4
729
LX570_OM_OM60L21U_(U) 4-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ............ 730
Cleaning and protecting
the vehicle interior ............. 733
4-2. Maintenance
Maintenance
requirements........................ 736
General maintenance .......... 739
Emission inspection and
maintenance (I/M)
programs ................................ 742
4-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ............................ 743
Hood ........................................... 746
Engine compartment ............ 747
Tires............................................. 762
Tire inflation pressure............. 771
Wheels ....................................... 775
Air conditioning filter ............ 777
Electronic key battery.......... 780
Checking and replacing
fuses ........................................ 782
Light bulbs ................................ 799

7804-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) Electronic key battery Replace the battery with a new one if it is discharged.
■ You will need the following items:
● Flathead screwdriver (To prevent damage to the key, cover the tip
of the screwdriver with rag.)
● Small Phillips-head sc rewdriver
● Lithium battery (CR1632)
■ Replacing the battery
Take out the mechanical key
(  P. 31).
Remove the cover.
Remove the depleted battery. Insert a new battery with the “+”
terminal facing up.STEP 1
STEP 2
STEP 3

7814-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) ■
If the electronic key battery is discharged
The following symptoms may occur. ●
The smart access system with push-button start and wireless remote control will
not function properly. ●
The operational range is reduced.■
Use a CR1632 lithium battery ●
Batteries can be purchased at your Lexus dealer, jewelers, or camera stores.●
Replace only with the same or equivalent type recommended by your Lexus
dealer. ●
Dispose of used batteries according to the local laws.■
When the card key battery needs to be replaced
The battery for the card key is available only at Lexus dealer. Your Lexus dealer can
replace the battery for you.
CAUTION■
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.
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 comp onents inside the electronic key.●
Do not bend the battery terminals.

When trouble arises
5
811
LX570_OM_OM60L21U_(U) 5-1. Essential information
Emergency flashers................ 812
If your vehicle needs to be
towed ....................................... 813
If you think something is
wrong ....................................... 819
Fuel pump shut off
system .................................... 820 5-2. Steps to take in an
emergency
If a warning light turns on
or a warning buzzer
sounds... .................................. 821
If a warning message is
displayed................................ 832
If you have a flat tire............... 849
If the engine will not
start ......................................... 863
If the shift lever cannot be
shifted from “P”.................... 865
If you lose your keys .............. 866
If the electronic key does
not operate properly.......... 867
If the battery is
discharged ............................ 870
If your vehicle overheats ..... 873
If the vehicle becomes
stuck......................................... 876
If your vehicle has to be
stopped in an
emergency ............................ 878

5
When trouble arises
8435-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) * : If the engine does not start when the electronic key is inside the vehicle, the
electronic key battery may be depleted or there may be difficulty receiving sig-
nal from the key. (  P. 8 6 7 )Interior
buzzer Exterior
buzzerWa r n i n g m e s s a g e Details Correction
procedure
Once 
(Flashes) An attempt was
made to start the
engine without
the electronic key
being present, or
the electronic key
was not function-
ing normally.
An attempt was
made to drive
when the regular
key was not inside
the vehicle. Start the engine
with the elec-
tronic key
present
* .