battery LEXUS LX570 2015 Workshop Manual

7494-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) CAUTIONThe engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury
observe the following precautions. ■
When working on the engine compartment ●
Keep hands, clothing and t ools away from the moving fa ns and engine drive belt.●
Be careful not to touch the engine, radiator, exhaust mani fold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot. ●
Do not leave anything that may burn easily, such as paper or rags, in the engine
compartment. ●
Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable. ●
Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.■
When working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START ST OP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (  P. 758)■
When working on or under the vehicle ●
Do not get under the vehicle with just the jack supporting it.
Always use automotive jack st ands or other solid supports.●
Use eye protection to prevent flying or falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE■
If you remove the air cleaner filter
Driving with the air cleaner removed may cause excessive engine wear due to dirt
in the air.

7514-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) Engine compartment
Power steering fluid reservoir
(  P. 761)
Engine oil level dipstick
(  P. 753)
Engine oil filler cap
(  P. 754)
Brake fluid reservoir
(  P. 759) Fuse box (  P. 786)
Washer fluid tank (  P. 765)
Battery (  P. 762)
Cooling fans
Condenser (  P. 758)
Radiator (  P. 758)
Engine coolant reservoir
(  P. 757)

7624-3. Do-it-yourself maintenance
LX570_OM_OM60L96U_(U) Battery
Check the battery as follows:
■ Battery exterior
Make sure that the battery terminals are not corroded and that there
are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clampCAUTION■
When checking the reservoir
Take care, as the re servoir may be hot.
NOTICE■
When adding fluid
Avoid overfilling, or the power steering may be damaged. ■
After replacing the reservoir cap
Check the steering box case , vane pump and hose conn ections for leaks or dam-
age.

7634-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) ■
Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, 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 discon-
necting the charger cables to the battery.■
After recharging/reconnecting the battery
The engine may not start. Follow the pr ocedure below to initialize the system.
Depress the brake pedal with the shift lever in “P” or “N”.
Open and close any of the doors.
Restart the engine.
CAUTION■
Chemicals in the battery
A battery contains poisonous and corrosi ve sulfuric acid and may produce hydro-
gen gas which is flammable an d explosive. To reduce the risk of death or serious
injury, take the following precautions while working on or near battery: ●
Do not cause sparks by touching the battery terminals with tools.●
Do not smoke or light a match near the battery. ●
Avoid contact with eyes, skin and clothes. ●
Never inhale or swallow electrolyte. ●
Wear protective safe ty glasses when working near the battery.●
Keep children away from the battery. STEP 1
STEP 2
STEP 3

7644-3. Do-it-yourself maintenance
LX570_OM_OM60L96U_(U) CAUTION■
Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a garage
or closed room where there is not sufficient ventilation. ■
How to recharge the battery
Only perform a slow charge (5A or less). The battery may explode if charged at a
quicker rate. ■
Emergency measures regarding electrolyte ●
If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immediate medi-
cal attention. If possible, continue to apply water with a sponge or cloth while
traveling to the nearest medical facility. ●
If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burnin g, get medical atten-
tion immediately. ●
If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the clothing and
follow the procedure above if necessary. ●
If you accidentally swallow electrolyte
Drink a large quantity of water or milk . Get emergency medical attention imme-
diately.
NOTICE■
When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all accesso-
ries are turned off.

7844-3. Do-it-yourself maintenance
LX570_OM_OM60L96U_(U) Electronic key battery Replace the battery with a ne w one if it is discharged.
■ You will need the following items:
● Flathead screwdriver (T o prevent damage to the key, cover the
tip of the screwdriver with rag.)
● Small Phillips-head screwdriver
● 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

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
* .