water LEXUS LS500 2019 Service Manual

3776-3. Do-it-yourself maintenance
LS500_OM_(U)_1810 6
Maintenance and care engine oil may need to be refilled in
between oil maintenance intervals. ●
When the engine is new, for example
directly after purchasing the vehicle or
after replacing the engine●
If low quality oil or oil of an inappropriate
viscosity is used●
When driving at high engine speeds or
with a heavy load, or when driving while
accelerating or decelerating frequently●
When leaving the engine idling for a long
time, or when driving frequently through
heavy traffic■
After changing the engine oil
The engine oil maintena nce data should be
reset. Perform the following procedures:
1 Press or of the meter control
switch to select .
2 Press or to select “Vehicle Set-
tings” and then press .
3 Press or to select “Oil Mainte-
nance” and then press .
4 Press or to select “Yes” and
then press .
A message will be displayed on the
multi-information disp lay when the reset
procedure has been completed.
The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the engine is cold. ■
Engine coolant reservoir
Reservoir capWARNING
■
Used engine oil●
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as inflamma-
tion and skin cancer, so care should be
taken to avoid prolonged and
repeated contact. To remove used
engine oil from your skin, wash thor-
oughly with soap and water. ●
Dispose of used oil and filters only in a
safe and acceptable manner. Do not
dispose of used oil and filters in house-
hold trash, in sewers or onto the
ground.
Call your Lexus dealer, service station
or auto parts store for information
concerning recycling or disposal. ●
Do not leave used engine oil within the
reach of children.
NOTICE■
To prevent serious engine damage
Check the oil level on a regular basis. ■
When replacing the engine oil ●
Be careful not to spill engine oil on the
vehicle components. ●
Avoid overfilling, or the engine could
be damaged. ●
Check the oil level on the dipstick
every time you re fill the vehicle.●
Be sure the engine o il filler cap is prop-
erly tightened.
Checking the coolant
A

378 6-3. Do-it-yourself maintenance
LS500_OM_(U)_1810 “F” line
“L” lineIf the level is on or below the “L” line, add
coolant up to the “F” line. (  P.440)■
Intercooler coolant reservoir
The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the engine is cold.
Reservoir cap
“F” line
“L” lineIf the level is on or below the “L” line, add
coolant up to the “F” line. (  P.440)
■
Coolant selection
Only use “Toyota Super Long Life Coolant”
or a similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite,
and non-borate coolant with long-life
hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mix-
ture of 50% coolant and 50% deionized
water. (Minimum temperature: -31°F
[-35°C])
Canada:
“Toyota Super Long Life Coolant” is a mix-
ture of 55% coolant and 45% deionized
water. (Minimum temperature: -44°F
[-42°C])
For more details about coolant, contact
your Lexus dealer. ■
If the coolant level drops within a short
time of replenishing
Visually check the radi ator, hoses, engine
coolant reservoir caps, drain cock and
water pump.
If you cannot find a leak, have your Lexus
dealer test the cap and check for leaks in
the cooling system.
Check the radiator, condenser, inter-
cooler radiator and intercooler sub
radiator and clear away any foreign
objects. If either of the above parts is
extremely dirty or yo u are not sure of
their condition, have your vehicle
inspected by your Lexus dealer.B
C
A
B
C WARNING■
When the engine is hot
Do not remove the engine coolant reser-
voir cap, the intercooler coolant reser-
voir cap and the coolant inlet cap.
(  P.442)
The cooling system may be under pres-
sure and may spray hot coolant if the cap
is removed, causing serious injuries, such
as burns.
NOTICE■
When adding coolant
Coolant is neithe r plain water nor
straight antifreeze. The correct mixture
of water and antifreeze must be used to
provide proper lubrication, corrosion
protection and cooling. Be sure to read
the antifreeze or coolant label.
■
If you spill coolant
Be sure to wash it off with water to pre-
vent it from damaging parts or paint.
Checking the radiator, con-
denser, intercooler radiator (if
equipped) and intercooler sub
radiator (if equipped)

3796-3. Do-it-yourself maintenance
LS500_OM_(U)_1810 6
Maintenance and care ■
Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.
■
Adding fluid
Make sure to check the fluid type and
prepare the necessary item.
 Fluid type FMVSS No.116 DOT 3 or SAE J1703
brake fluid
FMVSS No.116 DOT 4 or SAE J1704
brake fluid
 Item Clean funnel
■
Brake fluid can absorb moisture from
the air
Excess moisture in the brake fluid can cause
a dangerous loss of braking efficiency. Use
only newly opened brake 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.WARNING■
When the engine is hot
Do not touch the radiator, condenser,
intercooler radiator or intercooler sub
radiator as they may be hot and cause
serious injuries, such as burns.
Checking and adding the brake
fluid WARNING■
When filling the reservoir
Take care as brake fluid can harm your
hands and eyes and damage painted sur-
faces.
If fluid gets on your hands or in 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 out
or when the fluid leve l in the accumulator
is high.
If the reservoir need s frequent refilling,
there may be a serious problem.
Adding the washer fluid
WARNING
■
When adding washer fluid
Do not add washer fluid when the engine
is hot or running as washer fluid contains
alcohol and may catch fire if spilled on
the engine, etc.

380 6-3. Do-it-yourself maintenance
LS500_OM_(U)_1810 The battery is located in the trunk
under the luggage mat.
Removing the luggage mat:  P.340
■
Before recharging
When recharging, the battery produces
hydrogen gas which is flammable and
explosive. Therefore, observe the following
precautions before recharging: ●
If recharging with the battery installed on
the vehicle, be sure to disconnect the
ground cable. ●
Make sure the engine switch on the char-
ger is off when connecting and discon-
necting the charger cables to the battery. ■
After recharging/reconnecting the bat-
tery ●
Unlocking the doors using the smart
access system with pu sh-button start may
not be possible immediately after recon-
necting the battery. If this happens, use
the wireless remote control or the
mechanical key to lo ck/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 nor-
mally 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 NOTICE■
Do not use any fluid other than
washer fluid
Do not use soapy water or engine anti-
freeze instead of washer fluid.
Doing so may cause streaking on the
vehicle’s painted surfaces, as well as
damaging the pump leading to problems
of the washer fluid not spraying. ■
Diluting washer fluid
Dilute washer fluid with water as neces-
sary.
Refer to the freezing temperatures listed
on the label of the washer fluid bottle. Battery
Location

3816-3. Do-it-yourself maintenance
LS500_OM_(U)_1810 6
Maintenance and care battery was disconnect ed. Make sure to
turn off the engine before disconnecting
the battery. Take extra care when con-
necting the battery if the engine switch
mode prior to discharge is unknown.
If the system will not st art even after multiple
attempts, contact your Lexus dealer.
Make sure that the battery terminals
are not corroded and that there are no
loose connections, cracks, or loose
clamps.WARNING■
Chemicals in the battery
The battery contains poisonous and cor-
rosive sulfuric acid and may produce
hydrogen gas which is flammable and
explosive. To reduce the risk of death or
serious injury, take the following precau-
tions while working on or near the bat-
tery: ●
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
insufficient ventilation.
■
Emergency measures regarding
electrolyte
●
If electrolyte gets in your eyes
Flush your eyes with clean water for at
least 15 minutes and get immediate
medical 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 burning, get medical
attention 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 nec-
essary. ●
If you accidentally swallow electrolyte
Drink a large quantity of water or milk.
Get emergency medical attention
immediately. ■
When replacing the battery
Use a battery designed for this vehicle.
Failure to do so may cause gas (hydro-
gen) to enter the passenger compart-
ment, causing a fire or explosion.
For replacement of the battery, contact
your Lexus dealer.
NOTICE■
When recharging the battery
Never recharge the battery while the
engine is running. Also, be sure all acces-
sories are turned off.
Exterior

3876-3. Do-it-yourself maintenance
LS500_OM_(U)_1810 6
Maintenance and care 
For vehicles sold in Canada
When replacing the tires or wheels, the
tire pressure warning valve and trans-
mitters must be installed to the wheels
which will be installed to the vehicle.
When new tire pressure warning
valves and transmitte rs are installed,
new ID codes must be registered in the
tire pressure warning computer and
the tire pressure warning system must
be initialized. (  P.389)■
Replacing tires and wheels
If the ID codes of the tire pressure warning
valve and transmitters are not registered,
the tire pressure warning system will not
work properly. In this case, after driving for
about 20 minutes, the tire pressure warning light will blink for approximately 1 minute
and then illuminate to indicate a system
malfunction.
Installing tire pressure warning
valves and transmitters NOTICE■
Repairing or replac ing tires, wheels,
tire pressure warning valves, trans-
mitters and tire valve caps ●
When removing or fitting the wheels,
tires or the tire pressure warning
valves and transmitters, contact your
Lexus dealer as the tire pressure warn-
ing valves and transmitters may be
damaged if not handled correctly.
●
Make sure to install the tire valve caps.
If the tire valve caps are not installed,
water may enter the valves of the tire
pressure warning valve and transmit-
ters and the valves may become stuck.
●
When replacing tire valve caps, do not
use tire valve caps other than those
specified. The cap may become stuck.

3956-3. Do-it-yourself maintenance
LS500_OM_(U)_1810 6
Maintenance and care The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
(  P.452)
Tire valve
Tire pressure gauge 1 Remove the tire valve cap.
2 Press the tip of the tire pressure
gauge onto the tire valve.
3 Read the pressure using the gauge
gradations.
4 If the tire inflation pressure is not at
the recommended level, adjust the
pressure.
If you add too much air, press the
center of the valve to deflate.
5 After completing the tire inflation
pressure measurement and adjust-
ment, apply soapy water to the
valve and check for leakage.
6 Put the tire valve cap back on. ■
Tire inflation pressure check interval
You should check tire inflation pressure
every two weeks, or at least once a month.
Do not forget to check the spare. ■
Effects of incorrect tire inflation pres-
sure
Driving with incorrect ti re inflation pressure
may result in the following: ●
Reduced fuel economy ●
Reduced driving comfort and poor han-
dling ●
Reduced tire life due to wear ●
Reduced safety ●
Damage to the drive train
If a tire needs frequent inflating, have it
checked by your Lexus dealer.
■
Instructions for checking tire inflation
pressure
When checking tire inflation pressure,
observe the following:
●
Check only when the tires are cold.
If your vehicle has been parked for at
least 3 hours or has not been driven for
more than 1 mile or 1.5 km, you will get an
accurate cold tire inflation pressure read-Tire inflation pressure
Checking the specified tire infla-
tion pressure
Inspection and adjustment pro-
cedure
A
B

404 6-3. Do-it-yourself maintenance
LS500_OM_(U)_1810 ■
LED Lights
The lights consist of a number of LEDs. If
any of the LEDs burn out, take your vehicle
to your Lexus dealer to have the light
replaced. ■
Condensation build-up on the inside of
the lens
Temporary condensation build-up on the
inside of the headlight lens does not indi-
cate a malfunction. Contact your Lexus
dealer for more information in the following
situations: ●
Large drops of water ha ve built up on the
inside of the lens.●
Water has built up inside the headlight.Light bulbs If any lights burn out, have it
replaced by your Lexus dealer.

405
LS500_OM_(U)_1810 7 7
When trouble arises When trouble arises .
7-1. Essential information
Emergency flashers.................. 406
If your vehicle has to be stopped in
an emergency .......................... 406
If the vehicle is trapped in rising
water............................................ 407
7-2. Steps to take in an emergency
If your vehicle needs to be towed
........................................................ 409
If you think something is wrong
......................................................... 413
Fuel pump shut off system ...... 414
If a warning light turns on or a
warning buzzer sounds ........ 415
If a warning message is displayed
........................................................ 425
If you have a flat tire.................. 429
If the engine wi ll not start ....... 430
If you lose your keys ................. 432
If the fuel filler door cannot be
opened........................................ 432
If the electronic key does not
operate properly .................... 433
If the vehicle battery is discharged
........................................................ 435
If your vehicle overheats ........ 440
If the vehicle becomes stuck
........................................................ 443

4077-1. Essential information
LS500_OM_(U)_1810 7
When trouble arises seconds or more, or press it briefly
3 times or more in succession.
5 Stop the vehicle in a safe place by
the road.  Remove the seat belt first.
 If the door can be opened, open the
door and exit the vehicle.
 If the door can not be opened, open
the window using the power window
switch and exit the vehicle through
the window.
 If the window can not be opened
using the power window switch,
remain calm, wait until the water
level inside the vehicle rises to the
point that the water pressure inside
of the vehicle equals the water pres-
sure outside of the vehicle, and then
open the door and exit the vehicle.WARNING■
If the engine has to be turned off while
driving
Power assist for the steering wheel will
be lost, making th e steering wheel
heavier to turn. Decelerate as much as
possible before turning off the engine. If the vehicle is trapped in
rising water In the event the vehicle is sub-
merged in water, remain calm and
perform the following.