2015 LEXUS LX570 battery

7464-2. Maintenance
LX570_OM_OM60L96U_(U) Emission inspection and maintenance (I/M) programsSome states have vehicle emission inspection programs which include
OBD (On Board Diagnostics) checks. The OBD system monitors the
operation of the emission control system.
■ If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in
the emission control system. Your vehicle may not pass the I/M test
and may need to be repaired. Cont act your Lexus dealer to service
the vehicle.
■ Your vehicle may not pass the I/M test:
● When the battery is disconnected or discharged
Readiness codes that are set du ring ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may
not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on as a temporary mal-
function and your vehicle may not pass the I/M test.
■ When the malfunction indicator lamp goes off after several driv-
ing trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Lexus dealer to prepare the vehicle for re-testing.

7474
Maintenance and care
LX570_OM_OM60L96U_(U) 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions If you perform maintenance yourself, be sure to follow the correct proce-
dures given in these sections.
Items Parts and tools
Battery condition (  P. 762) •Warm water
• Baking soda
•Grease
• Conventional wrench
(for terminal clamp bolts)
Brake fluid level (  P. 759) • FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
•Rag or paper towel
• Funnel (used only for adding brake
fluid)
Engine coolant level (  P. 757) • “Toyota Super Long Life Coolant”
or similar high quality ethylene gly-
col based non-silicate, non-amine,
non-nitrite and non-borate coolant
with long-life hybrid organic acid
technology.
For the U.S.A.:
“Toyota Super Long Life Coolant”
is pre-mixed with 50% coolant and
50% deionized water.
For Canada:
“Toyota Super Long Life Coolant”
is pre-mixed with 55% coolant and
45% deionized water.
• Funnel (used only for adding cool-
ant)

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