2018 LEXUS LX570 maintenance

504
LX570_OM_OM60Q78U_(U) 6-3. Do-it-yourself maintenance■
Use a CR2032 lithium battery ●
Batteries can be purc hased at your Lexus dealer, loca l electrical appliance shops or
camera stores. ●
Replace only with the same or equivalent type recommended by the manufacturer. ●
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 only at Lexus dealers. Your Lexus dealer can
replace the battery for you. ■
If the electronic key battery is depleted
The following symptoms may occur: ●
The smart access system with push-button start and wireless remote control will not
function properly. ●
The operational rang e will be reduced.
WARNING ■
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 coul d 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 co mponent inside the remote control.●
Do not bend either of the battery terminals.

505
LX570_OM_OM60Q78U_(U) 6-3. Do-it-yourself maintenance
6
Maintenance and care
Checking and replacing fuses Turn the engine switch off.
Open the fuse box cover. 
Passenger’s side instrument panel
Remove the cover.
Remove the lid.If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and repl ace the fuses as necessary.1
2 
Engine compartment 
Driver’s side instrument panel
Push the tab in and lift the lid off. Remove the lid.

506
LX570_OM_OM60Q78U_(U) 6-3. Do-it-yourself maintenance
Remove the fuse with the pull-out tool.
Only type A fuse can be removed using
the pull-out tool.
Check if the fuse is blown.
Normal fuse
Blown fuse Type A and B:
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
Type C and D:
Contact your Lexus dealer. 3
4
1
2
Type A 
Type B
Type C 
Type D

LX570_OM_OM60Q78U_(U) 5076-3. Do-it-yourself maintenance
6
Maintenance and care ■
After a fuse is replaced ●
If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. ( → P. 508)●
If the replaced fuse blows again, have th e vehicle inspected by your Lexus dealer.■
If there is an overload in a circuit
The fuses are designed to blow, protec ting the wiring ha rness from damage.
WARNING ■
To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to th e vehicle, and possibly a fire or injury.●
Never use a fuse of a higher amperage rati ng than indicated, or use any other object
in place of a fuse. ●
Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wi re, even as a temporary fix.●
Do not modify the fuses or the fuse boxes.
NOTICE ■
Before replacing fuses
Have the cause of electrical overload dete rmined and repaired by your Lexus dealer,
as soon as possible.

508
LX570_OM_OM60Q78U_(U) 6-3. Do-it-yourself maintenance
Light bulbs ■
LED lights
If any of the lights listed below has burnt out, have it replaced by your Lexus dealer.●
Headlights ●
Parking lights/dayti me running lights●
Front side marker lights ●
Fog lights ●
Front turn signal lights ●
Side turn signal lights ●
Outer foot lights ●
Rear turn signal lights ●
High mounted stoplight ●
Stop/tail lights ●
License plate lights ●
Stop lights ●
Back-up lights ●
Rear side marker lights ●
Running board light ■
Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact your Lexus dealer for mo re information in the following situations: ●
Large drops of water are built up on the inside of the lens. ●
Water has built up inside the headlight.If any lights burn out, have it replaced by your Lexus dealer.
WARNING ■
Handling lights
Do not touch the lights while they are on or immediately after they have been turned
off. Doing so may result in burns.

5277-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) 7
When trouble arises WARNING ■
Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold and
inflated to the inflation pressure recomm ended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label (tire and load information label). (If your
vehicle has tires of a different size than the size indicated on the vehicle placard or tire
inflation pressure label [tire and load in formation label], you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle ha s been equipped with a tire pressure moni-
toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure
telltale (tire pressure warning light) when on e or more of your tires is significantly
under-inflated. Accordingly, when the low ti re pressure telltale (tire pressure warning
light) illuminates, you should st op and check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a si gnificantly under-inflat ed tire causes the
tire to overheat and can lead to tire failure . Under-inflation also reduces fuel efficiency
and tire tread life, and may affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure wa rning system) is not a substitute for proper
tire maintenance, and it is th e driver’s responsibility to ma intain correct tire pressure,
even if under-inflation has not reached the le vel to trigger illumina tion of the TPMS low
tire pressure telltale (tir e pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-
function indicator to indicate when the system is not operating properly. The TPMS
(tire pressure warning system) malfunction indi cator is combined with the low tire pres-
sure telltale (tire pressure warning light). When the system detects a malfunction, the
telltale will flash for approximately one mi nute and then remain continuously illumi-
nated. This sequence will cont inue upon subsequent vehicl e start-ups as long as the
malfunction exists. When the malfunction in dicator is illuminated, the system may not
be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfun ctions may occur for a variety of reasons,
including the installation of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS (tire pressure warning system) from functioning properly. Always
check the TPMS (tire pressure warning system) malfunction telltale after replacing one
or more tires or wheels on your vehicle to ensure that the replacement or alternate
tires and wheels allow the TPMS (tire pressu re warning system) to continue to function
properly.
NOTICE ■
To ensure the tire pressure warning system operates properly
Do not install tires with different specificatio ns or makers, as the tire pressure warning
system may not operate properly.

5297-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) 7
When trouble arises The warning lights and warning buzzers operate as follows depending on the
content of the message. If a message indicates the need for inspection by a
dealer, have the vehicle inspected by your Lexus dealer immediately.
* : A buzzer sounds the first time a message is shown on the multi-information display.■
System warning lights
The master warning light does not come on or flash in the following case. Instead, a sepa-
rate system warning light will come on al ong with a message or image shown on the
multi-information display. ●
Indicates that the PCS (Pre-Collision System) is not currently functional
The PCS warning light comes on. ( → P. 521)Messages and warnings System
warning
light Warning
buzzer
* Warning
Comes on Comes on Sounds
Indicates an important situation, such as
when a system related to driving is malfunc-
tioning or that danger may result if the cor-
rection procedure is not performed
Comes on ⎯ Sounds
⎯ Comes on
or flashes Sounds Indicates an important situation, such as
when the systems shown on the multi-infor-
mation display may be malfunctioning
Flashes ⎯ Sounds Indicates a situation, such as when damage
to the vehicle or danger may result
Comes on ⎯ Does not
sound Indicates a condition, such as malfunction of
electrical components, their condition, or
indicates the need for maintenance
Flashes ⎯ Does not
sound Indicates a situation, such as when an opera-
tion has been performed incorrectly, or indi-
cates how to perform an operation correctly

5317-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) 7
When trouble arises ■
If a following message is shown, take appr opriate action and confirm that the message
has disappeared. ( → P. 307)●
“Crawl Not Available Select L4 an d Shift to [D] or [R] Position”●
“Crawl Not Available Check System Operation Conditions” ●
“Turn Assist Function Not Available Check System Operation Conditions”●
“Turn Assist Function Not Available Activate Crawl Control”■
If “Maintenance Required Soon” is shown (U.S.A. only)
Indicates that all maintenance according to the driven distance on the maintenance
schedule
* should be performed soon.
Comes on approximately 4500 miles (7200 k m) after the message has been reset.
If necessary, perform maintenance.
* : Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual Supple-
ment” for the maintenance interval applicable to your vehicle.■
If “Maintenance Required Visit Your Dealer” is shown (U.S.A. only)
Indicates that all maintenance is required to correspond to the driven distance on the
maintenance schedule
* .
Comes on approximately 5000 miles (8000 km) after the message has been reset.
(The indicator will not work properly unless the message has been reset.)
Perform the necessary maintenance. Please reset the message after the maintenance is
performed ( → P. 465)
* : Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual Supple-
ment” for the maintenance interval applicable to your vehicle.■
If “Oil Maintenance Required Soon” is shown
Indicates that the engine oil is scheduled to be changed. (The indicator will not work
properly unless the message has been reset.)
Check the engine oil, and change if necessary. After changing the engine oil, the mes-
sage should be reset. ( → P. 475)■
If “Oil Maintenance Required Visit Your Dealer” is shown
Indicates that the engine oil should be ch anged. (The indicator will not work properly
unless the message has been reset.)
Check and change the engine o il, and oil filter by your Lexus dealer. After changing the
engine oil, the messag e should be reset. ( → P. 475)■
If “Visit Your Dealer” is shown
The system or part shown on the multi-info rmation display is malfunctioning. Have the
vehicle inspected by your Lexus dealer immediately. ■
Warning buzzer
In some cases, the buzzer ma y not be heard due to being in a noisy location or audio
sound.
NOTICE ■
While the engine oil level warning is displayed
Continued engine operation with low engine oil will damage the engine.