2018 LEXUS LX570 warning light

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LX570_OM_OM60Q78U_(U) 6-3. Do-it-yourself maintenance
Hood Pull the hood lock release lever. The hood will pop up slightly.
Lift the hood catch and lift the hood.Release the lock from the inside of the vehicle to open the hood.1
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WARNING ■
Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly, it may op en while the vehicle is in motion and cause
an accident, which may result in death or serious injury.

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LX570_OM_OM60Q78U_(U) 6-3. Do-it-yourself maintenance■
Adding fluid
Make sure to check the fluid type and prepare the necessary item. ■
Refilling brake fluid
Turn the engine switch off.
Depress the brake pedal more than 40 times.
Remove the reservoir cap by hand. Ad d brake fluid up to the “MAX” line.If you do not follow the procedure above, the reservoir may overflow.■
Brake fluid can absorb moisture from the air
Excess moisture in the fluid can cause a dang erous loss of braking efficiency. Use only
newly opened brake fluid. Fluid type FMVSS No.116 DOT 3 or SAE J1703 brake fluid
Items Clean funnel
WARNING ■
When filling the reservoir
Take care because brake fluid can harm yo ur hands or eyes and damage painted sur-
faces. If fluid gets on your eyes, flush the affected area with clean water immediately. If
you still experience discomfort, see a doctor.
NOTICE ■
If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or when
the fluid level in the accumulator is high. If the reservoir needs freq uent refilling, it may
indicate a serious problem. 1
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LX570_OM_OM60Q78U_(U) 4836-3. Do-it-yourself maintenance
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Maintenance and care ■
Before recharging
When recharging, the battery produces hydrogen gas which is flammable and explosive.
Therefore, observe the following 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 charge r is off when connecting and disconnecting
the charger cables to the battery. ■
After recharging/reconnecting the battery
The engine may not start. Follow the procedure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine. ●
Unlocking the doors using the smart access system with push-button start may not be
possible immediately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.●
Start the engine with the engine switch in ACCESSORY mode. The engine may not
start with the engine switch turned off. However, the engine will operate normally from
the second attempt. ●
The engine switch mode is recorded by the vehicle. If the battery is reconnected, the
vehicle will return the engine switch mode to the status it was in before the battery was
disconnected. Make sure to turn off the engine before disconnect the battery. Take
extra care when connecting the battery if the engine switch mode prior to discharge is
unknown.
If the engine will not start even after multiple attempts, contact your Lexus dealer.
WARNING ■
Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce hydrogen
gas which is flammable and explosive. To redu ce 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 safety glasses when working near the battery. ●
Keep children away from the battery. ■
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. 1
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LX570_OM_OM60Q78U_(U) 4876-3. Do-it-yourself maintenance
6
Maintenance and care Your Lexus is equipped with a tire pressu re warning system that uses tire pres-
sure warning valves and transmitters to detect low tire inflation pressure before
serious problems arise. ●
If the tire pressure drops below a predet ermined level, the driver is warned by
a screen display and a warning light. ( → P. 522)●
The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. ( → P. 91)
◆ Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pr essure warning valv es and transmitters
must also be installed.
When new tire pressure wa rning valves and transmitters are installed, new ID
codes must be registered in the tire pressure warning computer and the tire
pressure warning system must be initia lized. Have tire pressure warning valve
and transmitter ID codes registered by your Lexus dealer. ( → P. 488)
◆ Initializing the tire pressure warning system ■
The tire pressure warning system must be initialized in the following circum-
stances: ●
When rotating the tires in above situation. ●
When the set tire pressure has been changed before towing. ( → P. 565)
When the tire pressure warning system is initialized, the current tire inflation
pressure is set as the benchmark pressure.Tire pressure warning system

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LX570_OM_OM60Q78U_(U) 6-3. Do-it-yourself maintenance■
How to initialize the tire pressure warning system
Park the vehicle in safe place and turn the engine switch to off. Initialization cannot be performed while the vehicle is moved.
Adjust the tire inflation pressure to th e specified cold tire inflation pressure
level. ( → P. 565)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 switch to IGNITION ON mode.
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times. “--” will be displayed for inflation
pressure of each tire on the multi-
information displa y while the tire
pressure warning system determines
the position of each tire.
When position of each tire is determined, the inflation pressure of each tire will be
displayed on the mult i-information display.
Drive the vehicle at approximately 25 mph (40 km/h) or more for approx-
imately 10 minutes. When initialization is comple te, the inflation pressure of each tire will be displayed
on the multi-information display.
Initialization will take long er than approximately 10 minutes if the vehicle is
stopped for a long time, su ch as at traffic signals.
◆ Registering ID codes
The tire pressure warning valve and tran smitter is equipped with a unique ID
code. When replacing a tire pressure warning valve and transmitter, it is nec-
essary to register the ID code of tire pressure warning valve and transmitter.
Have the ID code registered by your Lexus dealer. 1
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LX570_OM_OM60Q78U_(U) 4896-3. Do-it-yourself maintenance
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Maintenance and care ■
When to replace your vehicle’s tires
Tires should be replaced if: ●
The treadwear indicators are showing on a tire. ●
You have tire damage such as cuts, splits, cracks deep enou gh 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, consult 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 system will not work proper ly. After driving for about 20 minutes, the
tire pressure warning light comes on after blinking for 1 minute to indicate a system mal-
function. ■
Tire life
Any tire over 6 years old must be checked by a qualified technician even if it has seldom
or never been used or damage is not obvious.■
Routine tire inflation pressure checks
The tire pressure warning syst em does not replace routine tire inflation pressure checks.
Make sure to check tire inflat ion pressure as part of your routine of daily vehicle checks.■
Maximum load of tire
Check that the number given by dividing the maximum load by 1.10 of the replacement
tire is greater than 1/2 of the Gross Axle We ight Ratings (GAWR) of either the front axle
or the rear axle, wh ichever is greater.
For the GAWR, see the Ce rtification Label. For
the maximum load of the tire, see the load limit
at maximum cold tire inflation pressure men-
tioned on the sidewall of the tire. ( → P. 569)

LX570_OM_OM60Q78U_(U) 4916-3. Do-it-yourself maintenance
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Maintenance and care ●
Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility that generates st rong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phon e or other wireless
communication device
If tire position information is not correctl y displayed due to the radio wave conditions,
the display may be corrected by driving and changing the radio wave conditions. ●
When the vehicle is parked, the time taken for the warning to start or go off could be
extended. ●
When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function. ■
The initialization operation ●
Make sure to carry out initialization afte r adjusting the tire inflation pressure.
Also, make sure the tires are cold before carryi ng out initialization or tire inflation pres-
sure adjustment. ●
If you have accidentally turned the engine swit ch off during initialization, it is not neces-
sary to press the reset switch again as initialization will re start automatically when the
engine switch has been turned to IG NITION ON mode for the next time.●
If you accidentally press the re set switch when initialization is not necessary, adjust the
tire inflation pressure to the specified leve l when the tires are co ld, and conduct initial-
ization again. ●
While the position of each tire is being de termined and the inflation pressures are not
being displayed on the multi-info rmation display, if the inflat ion pressure of a tire drops,
the tire pressure warning light will come on.

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LX570_OM_OM60Q78U_(U) 6-3. Do-it-yourself maintenance■
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 set-
tings have not been recorded and the system will not operate properly. If repeated
attempts to record tire inflation pressure settings are unsuccessful, have the vehicle
inspected by your Lexus dealer. ●
When operating the tire pres sure warning reset switch, th e tire pressure warning light
does not blink 3 times and the setting mess age does not appear on the multi-informa-
tion display. ●
After carrying out the initializat ion procedure, the tire pressu re warning light blinks for 1
minute then stays on after driving for about 20 minutes.
If the inflation of each tire is not displaye d after driving for approximately 1 hour, perform
the following procedure. ●
Park the vehicle in a safe place for approxim ately 20 minutes. Then drive straight (with
occasional left and right turns) at appr oximately 25 mph (40 km/h) or more for
approximately 10 to 20 minutes.
However, in the following situations, the tire inflation pressure will not be recorder and
the system will not operate pr operly. Perform initialization.●
When operating the tire pres sure warning reset switch, th e tire pressure warning light
does not blink 3 times. ●
After performing initia lization, the tire pressure warning light blinks for 1 minute then
stays on after driving for about 20 minutes.
If the inflation pressure of ea ch tire is still not displayed, have the vehicle inspected by
your Lexus dealer. ■
Tire pressure warning system certification 
For vehicles sold in the U.S.A., Hawaii, Guam, Puerto Rico and NATO Germany
FCC ID: PAXPMVC015
NOTE
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
FCC WARNING
Changes or modifications not expressly approved by the pa rty responsible for compli-
ance could void the user’s authority to operate the equipment. 
For vehicles sold in Canada
Model: PMV-C015
NOTE
This device complies with Industry Canada licence-exempt RSS st andard(s). Operation
is subject to the following two conditions: (1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause
undesired operation of the device.