2015 LEXUS LX570 battery

7854-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) ■
If the electronic key battery is discharged
The following symptoms may occur. ●
The smart access system with push-butto n 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 equiva lent type recommend ed 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 on ly 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 co uld 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
815
LX570_OM_OM60L96U_(U) 5-1. Essential information
Emergency flashers ............... 816
If your vehicle needs to be
towed ....................................... 817
If you think something is
wrong ..................................... 824
Fuel pump shut off
system .................................... 825 5-2. Steps to take in an
emergency
If a warning light turns on
or a warning buzzer
sounds... ................................. 826
If a warning message is
displayed................................ 837
If you have a flat tire .............. 854
If the engine will not
start ......................................... 868
If the shift lever cannot be
shifted from “P”.................... 870
If you lose your keys ............... 871
If the electronic key does
not operate properly ......... 872
If the battery is
discharged ............................ 875
If your vehicle overheats ..... 878
If the vehicle becomes
stuck......................................... 881
If your vehicle has to be
stopped in an
emergency............................ 883

816
LX570_OM_OM60L96U_(U) 5-1. Essential information
Emergency flashers ■
Emergency flashers
If the emergency flashers are used for a long time while the engine is not operating,
the battery may discharge.The emergency flashers are used to warn other drivers when the vehicle
has to be stopped in the road due to a breakdown, etc.
Press the switch. All the turn signal lights will flash.
To turn them off, press the
switch once again.

5
When trouble arises
8495-2. Steps to take in an emergency
LX570_OM_OM60L96U_(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. 872)Interior
buzzer Exterior
buzzerWarning message 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
* .

5
When trouble arises
8695-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) If the engine will not start If the engine still does not start afte r following the correct starting proce-
dure (  P. 177) or releasing the steering lock (  P. 179), confirm the fol-
lowing points.
■ The engine will not start even when the starter motor operates
normally
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 once more following correct starting
procedures. (  P. 177)
● There may be a malfunction in the engine immobilizer system.
(  P. 119)
■ The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume
One of the following may be the cause of the problem.
● The battery may be discharged. (  P. 875)
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over
The engine starting sy stem may be malfunctioning due to an electri-
cal problem such as an open ci rcuit or a blown fuse. However, an
interim measure is available to start the engine. (  P. 869)

8705-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) Emergency start function
When the engine does no t start, the following s teps can be used as an
interim measure to start the engine if the “ENGINE START STOP”
switch is functioning normally.
Set the parking brake.
Put the shift lever in “P”.
Set the “ENGINE START STOP” switch to the ACCESSORY
mode.
Push and hold the “E NGINE START STOP” sw itch about 15 sec-
onds while dep ressing the brake pedal firmly.
Even if the engine can be started using the above step s, the system may
be malfunctioning. Have the vehi cle checked by your Lexus dealer.■ The starter motor does not turn ov er, the interior lights and head-
lights do not turn on, or the horn does not sound
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. 875)
● There may be a malfunction in the steering lock system.Contact your Lexus dealer, if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3
STEP 4

5
When trouble arises
8735-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) If the electronic key does not operate properly
Locking and unlocking the do ors and key linked functions
Using the mechanical key (  P. 31)
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. 40) or the electronic key cannot be used because the battery is
depleted, the smart access system wi th push-button start and wireless
remote control cannot be used. In su ch cases, the doors can be opened or
the engine can be started by following the procedure below.

5
When trouble arises
8755-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) ■
Stopping the engine
Shift the shift lever to “P ” and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine. ■
Replacing the key battery
As the above procedure is a temporary meas ure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted.
(  P. 784)■
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. 178)■
Alarm
Using the mechanical key to lock th e 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. 121)
CAUTION■
When using the mechanical key and operating the power windows and moon
roof
Operate the power window or moon roof after checking to make sure that there is
no possibility of any passenger having any of their body parts caught in the window
or moon roof.
Also, do not allow children to operate the mechanical key. It is possible for children
and other passenger s to get caught in power window and moon roof.