2015 LEXUS LX570 engine

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.

7654-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) Washer fluid
If any washer does not work or the
warning message appears on the
multi-information display, the
washer tank may be empty. Add
washer fluid.
CAUTION■
When refilling the washer fluid
Do not refill the washer fluid when the engine is hot or running, as the washer fluid
contains alcohol and may catch fire if spilled on the engine etc.
NOTICE■
Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces. ■
Diluting washer fluid
Dilute washer fluid wi th water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bottle.

7684-3. Do-it-yourself maintenance
LX570_OM_OM60L96U_(U) ■ How to initialize the tire pressure warning system
Park the vehicle in safe plac e and turn the “ENGINE START
STOP” switch to OFF. While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (  P. 895)Make sure to adjust the tire pressure to the specified cold tire inflation
pressure level. The tire pressure warning system will operate based on
this pressure level.
Turn the “ENGINE START STOP ” switch to IGNITION ON
mode.
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times and a message
appears on the multi-information
display.
Wait for a few minutes with th e IGNITION ON mode, and then
turn the “ENGINE START STOP” switch to OFF.
Registering ID codes
The tire pressure warning valve and tra nsmitter is equipped with a unique
ID code. When replacing a tire pre ssure warning valve and transmitter, it
is necessary to register the ID code of tire pressure warning valve and
transmitter. Have the ID code registered by your Lexus dealer.STEP 1
STEP 2
STEP 3
STEP 4
STEP 5

7694-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) ■
When to replace your vehicle’s tires
Tires should be replaced if: ●
You have tire damage such as cuts, splits, cracks deep enough to expose the
fabric, and bulges indicating internal damage ●
A tire goes flat repeatedly or cannot be properly repaired due to the size or
location of a cut or other damage
If you are not sure, consul t with your Lexus dealer.■
Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered,
the tire pressure warning sy stem will not work properly. After driving for about 20
minutes, the tire pressure warning light come s on after blinking for 1 minute to indi-
cate a system malfunction. ■
When rotating the tires
Make sure that the “ENGINE START STOP” switch is off. If the tires are rotated
while the “ENGINE START STOP” switch is in IGNITION ON mode, the tire posi-
tion information will not be updated.
If this accidentally occurs, either turn the “ENGINE START STOP” switch to off
and then to IGNITION ON mode, or initia lize the system afte r checking that the
tire pressure is properly adjusted. ■
Tire life
Any tire over 6 years old mu st be checked by a qualified technician even if it has
seldom or never been used or damage is not obvious. ■
If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tire s as snow tires is lost.

7714-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) ■
Initializing the tire pressure warning system
Initialize the tire pressure warning system with the tire inflation pressure adjusted to
the specified level. ■
If you push the tire pressure warning reset switch accidentally
If initialization is performed, adjust the ti re inflation pressure to the specified level
and initialize the tire pre ssure warning system again.■
The initialization operation ●
Make sure to carry out initialization afte r adjusting the tire inflation pressure.
Also, make sure the tires are cold before carrying out initialization or tire infla-
tion pressure adjustment. ●
If you have accidentally turned the “ENGINE START STOP” switch off during
initialization, it is not necessary to pre ss the reset switch again as initialization
will restart automatically when the “ENGINE START STOP” switch has been
turned to IGNITION ON mode for the next time. ●
If you accidentally press the reset switch when initialization is not necessary,
adjust the tire inflation pressure to th e specified level when the tires are cold,
and conduct initialization again.■
When the initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following cases,
the settings have not been recorded and the system will not operate properly. If
repeated attempts to record tire inflation pressure se ttings are unsu ccessful, have
the vehicle inspected by your Lexus dealer. ●
When operating the tire pressure warnin g reset switch, the tire pressure warn-
ing light does not blink 3 times and the setting message does not appear on the
multi-information display. ●
After carrying out the initialization proc edure, the tire pressure warning light
blinks for 1 minute then stays on after driving for about 20 minutes.■
Routine tire inflation pressure checks
The tire pressure warning sy stem does not replace rout ine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.

7814-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) Air conditioning filter The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
■ Removal method
Turn the “ENGINE START ST OP” switch IGNITION ON
mode and switch to recircula ted air mode, then turn the
“ENGINE START STOP” switch OFF.
Open the glove box and remo ve the separate tray. (  P. 691)
Remove the filter cover.
Remove the filter case.STEP 1
STEP 2
STEP 3
STEP 4

7864-3. Do-it-yourself maintenance
LX570_OM_OM60L96U_(U) Checking and replacing fuses If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and re place the fuses as necessary.
Turn the “ENGINE START STOP” switch OFF.
Remove the engine compartment cover 
 P. 752
The fuses are located in the fo llowing places. To check the
fuses, follow the instructions below.
Engine compartm ent (fuse box on the left side)
Push the tab in and lift the lid off.
Engine compartm ent (fuse box on the right side)
Push the tabs in and lift the lid
off.STEP 1
STEP 2
STEP 3