key battery LEXUS LX570 2014 User Guide

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
* .

8465-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) Once  The electronic key
has a low battery. Replace the elec-
tronic key battery.
(  P. 7 8 0 )
Once 
(Flashes) A door was
opened and
closed with the
“ENGINE START
STOP” switch
turned off and
then the
“ENGINE START
STOP” switch was
put in ACCES-
SORY mode
twice without the
engine being
started. Press the
“ENGINE START
STOP” switch
while depressing
the brake pedal.
Once 
(Flashes) The steering lock
could not be
released within 3
seconds of the
“ENGINE START
STOP” switch
being pressed. Press the
“ENGINE START
STOP” switch
while depressing
the brake pedal
and moving the
steering wheel left
and right.Interior
buzzer Exterior
buzzerWa r n i n g m e s s a g e Details Correction
procedure

5
When trouble arises
8675-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) If the electronic key do es not operate properly
Locking and unlocking the doors and key linked functions
Using the mechanical key (  P. 3 1 )
in order to perform the following
operations.
Locks all doors
Closes the windows/moon roof
(turn and hold)
*Unlocks the door
Turning the key rearward
unlocks the driver’s door. Turn-
ing the key once again unlocks
the other doors.
Opens the windows/moon roof
(turn and hold)
*
* : This setting must be customized
at your Lexus dealer.If communication between the electron ic key and vehicle is interrupted
(  P. 39) or the electronic key cannot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors can be opened or
the engine can be started by following the procedure below.

5
When trouble arises
8695-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) ■
Stopping the engine
Shift the shift lever to “P” and press th e “ENGINE START STOP” switch as you nor-
mally do when stopping the engine. ■
Replacing the key battery
As this above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery depletes. (  P. 7 8 0 )■
Changing “ENGINE START STOP” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
“ENGINE START STOP” switch.
The engine does not start and modes will be changed each time the switch is
pressed. (  P. 1 76 )■
Alarm
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the
alarm may be triggered. (  P. 1 1 9 )

5
When trouble arises
8715-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) ■
Starting the engine when the battery is discharged
The engine cannot be started by push-starting. ■
Avoiding a discharged battery ●
Turn off the headlights and the audio system while the engine is off. ●
Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.■
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 the battery is removed or discharged ●
The power back door must be initialized. (  P. 6 0 )●
Make sure the key is not inside the vehicle when recharging or replacing the
battery. The key may be locked in the vehicle if the alarm is activated. (  P. 1 2 0 )Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Open and close any of the do ors with the “ENGINE START
STOP” switch off.
Maintain the engine speed of th e second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine ha s started, remove the jumper
cables in the exact reverse ord er in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Lexus dealer,
as soon as possible. STEP 3
STEP 4
STEP 5
STEP 6