2018 Lexus LC500h service

3297-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
7
When trouble arises
In the following situations, it is not pos-
sible to be towed by another vehicle
using cables or chains, as the rear
wheels may be locked due to the park-
ing lock. Contact your Lexus dealer or
commercial towing service.
 There is a malfunction in the shift control system. (
P.143, 147, 346)
 There is a malfunction in the engine
immobilizer system system>. ( P.62)
 There is a malfunction in the smart
access system with push-button
start. ( P.355)
 The 12-volt battery is discharged.
( P.357)
The following may indicate a problem
with your transmission. Contact your
Lexus dealer or commercial towing
service before towing.
 LC500: The engine is running but
the vehicle does not move.
 LC500h: The hybrid system warn-
ing message is shown on the multi-
information display and the vehicle
does not move.
 The vehicle makes an abnormal
sound.
Do not tow with a sling-type truck to
prevent body damage.
WARNING
■Installing towing eyelets to the vehi-
cle
Make sure that towing eyelets are
installed securely.
If not securely installed, towing eyelets
may come loose during towing.
NOTICE
■To prevent damage to the vehicle
when towing using a wheel-lift type
truck
●Do not tow the vehicle from the rear
when the engine switch switch> is off. The steering lock mecha-
nism is not strong enough to hold the
front wheels straight.
●When raising the vehicle, ensure ade-
quate ground clearance for towing at
the opposite end of the raised vehicle.
Without adequate clearance, the vehi-
cle could be damaged while being
towed.
■To prevent damage to the vehicle
when towing with a sling-type truck
Do not tow with a sling-type truck, either
from the front or rear.
■To prevent damage to the vehicle
during emergency towing
Do not secure cables or chains to the
suspension components.
Situations when it is not possible
to be towed by another vehicle
Situations when it is necessary to
contact dealers before towing
Towing with a sling-type truck

3507-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
Take your vehicle to the nearest Lexus
dealer or authorized tire dealer as
soon as possible if any tire goes flat.
The vehicle can be driven for a maximum
of 100 miles (160 km) at a speed below 50
mph (80 km/h) after the tire pressure
warning light comes on. ( P.340)
A run-flat tire has a mark on the
side wall.
■In some condition (such as at high tem-
peratures)
You cannot continue driving for up to 100
miles (160 km).
■For the detailed information on run-flat
tires
See the tire warranty booklet.
If you have a flat tire
Your vehicle is not equipped with a
spare tire, but instead you can con-
tinue driving the vehicle with run-
flat tires even if any tire goes flat.
In this case, slow down and drive
with extra caution.
Run-flat tires
NOTICE
■When replacing the tires
When removing or fitting the wheels,
tires or the tire pr essure warning valve
and transmitter, contact your Lexus
dealer as the tire pressure warning valve
and transmitter may be damaged if not
handled correctly.
■When driving over bumps
If a vehicle has a flat tire, the vehicle
height will be lower than usual. Ensure
that nothing strikes the bottom of the
vehicle.
■To avoid damaging the tire pressure
warning valves and transmitters
When a tire is repaired with liquid seal-
ants, the tire pressure warning valve and
transmitter may not operate properly. If a
liquid sealant is used , contact your Lexus
dealer or other qualified service shop as
soon as possible. Make sure to replace
the tire pressure warning valve and trans-
mitter when replacing the tire. ( P.305)

3547-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
1Remove the cover in the center of
the rear seat. ( P.357)
2 Pull the tab.
LC500h: Using the tab to open the
fuel filler door may not allow for an
adequate reduction in fuel tank pres-
sure before refuelin g. To prevent fuel
from spilling out, turn the cap slowly
when removing it.
During refueling, fuel may spill out from
If you lose your keys
New genuine mechanical keys can
be made by your Lexus dealer using
another mechanical key and the
key number stamped on your key
number plate. Keep the plate in a
safe place such as your wallet, not in
the vehicle.
NOTICE
■When an electronic key is lost
If the electronic key remains lost, the risk
of vehicle theft increases significantly.
Visit your Lexus deal er immediately with
all remaining electron ic keys that were
provided with your vehicle.
If the fuel filler door cannot
be opened
LC500:
If the fuel filler door opener switch
cannot be operated, the following
procedure can be used to open the
fuel filler door.
LC500h:
If the fuel filler door opener switch
cannot be operated, contact your
Lexus dealer to service the vehicle.
In case where refueling is urgently
necessary, the following procedure
can be used to open the fuel filler
door.
Opening the fuel filler door

3657-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
7
When trouble arises
6 Start the engine and turn the air
conditioning system on to check
that the radiator cooling fan oper-
ates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning
system is turned on immediately after a
cold start. Confirm that the fan is operating
by checking the fan sound and air flow. If it
is difficult to check these, turn the air con-
ditioning system on and off repeatedly.
(The fan may not operate in freezing tem-
peratures.)
7 If the fan is not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the
nearest Lexus dealer.
■When adding coolant
Add coolant in accordance with the follow-
ing procedure.
1 Remove the service cover.
2 Remove the engine cover. 3
Remove the caps and .
4 Add coolant through the inlet of the cap
up to the “F” line , and then
replace the cap .
5 Add coolant through the inlet of the cap
until it is full, and then replace the
cap .WARNING
■When inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious
injury such as burns.
●If steam is seen coming from under the
hood, do not open the hood until the
steam has subsided. The engine com-
partment may be very hot.
AB
AC
A
B
B

3687-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
3After the hybrid system has cooled
down, inspect the hoses and radia-
tor core (radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4The coolant level is satisfactory if it
is between the “F”/“FULL” and
“L”/“LOW” lines on the reservoir.
Reservoir
“F”/“FULL”
“L”/“LOW”
5 Add coolant if necessary.
Water can be used in an emergency if power control unit coolant is unavailable.
6
After stopping the hybrid system
and waiting for 5 minutes or more,
start the hybrid system again and
check if “Hybrid System Over-
heated Reduced Output Power” is
shown on the multi-information dis-
play.
If the message does not disappear:
Stop the hybrid system and contact your
Lexus dealer.
If the message is not displayed:
The hybrid system temperature has
dropped and the vehicle may be driven
normally.
However, if the message appears again fre-
quently, contact your Lexus dealer.
■When adding engine coolant
Add coolant in accordance with the follow-
ing procedure.
1 Remove the service cover.
2 Remove the engine cover.
A
B
A
B
C

3828-1. Specifications
LC500_LC500h_OM_OM11405U_(U)
■Non-recommendation of the use of gas-
oline containing MMT
Some gasoline contains an octane enhanc-
ing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gas-
oline that contains MMT. If fuel containing
MMT is used, your emission control system
may be adversely affected.
The malfunction indicator lamp on the
instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knock-
ing for a short time while accelerating or
driving uphill. This is normal and there is
no need for concern.
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper
fuels are used, the engine will be dam-
aged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to
your vehicle’s three-way catalytic con-
verters causing the emission control
system to malfunction.
●Do not use gasohol other than the type
previously stated.
Other gasohol may cause fuel system
damage or vehicle performance prob-
lems.
●Using unleaded gasoline with an
octane number or rating lower than
the level previously stated may cause
persistent he avy knocking.
At worst, this may lead to engine dam-
age and will void the vehicle warranty.
■Fuel-related poor driveability
If poor driveability (poor hot starting,
vaporization, engine knocking, etc.) is
encountered after using a different type
of fuel, discontinue the use of that type of
fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can dam-
age your vehicle’s paint.

3868-1. Specifications
LC500_LC500h_OM_OM11405U_(U)
■Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.
For example, a tire graded 150 would wear
one and a half (1 - 1/2) times as well on the
government course as a tire graded 100.
The relative performa nce of tires depends
upon the actual conditions of their use.
Performance may differ significantly from
the norm due to variatio ns in driving habits,
service practices and differences in road
characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include cornering (turning) traction.
■Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudd en tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Fede ral Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades of a tire
assume that it is properly inflated and not
overloaded.
Excessive speed, unde rinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressureTire pressure when the vehicle has been parked for three hours or
more, or has not been driven more than 1 mile or 1.5 km under that
condition
Maximum inflation
pressureThe maximum cold inflated pressure to which a tire may be inflated,
shown on the sidewall of the tire
Recommended
inflation pressureCold tire inflation pressure recommended by a manufacturer

428Alphabetical index
LC500_LC500h_OM_OM11405U_(U)
Child restraint system installation ......... 44
Cleaning and maintaining the seat belt ..........................................................................277
Emergency Locking Retractor .............. 26
How to wear your seat belt ..................... 25
How your child should wear the seat belt ............................................................................ 25
Pregnant women, proper seat belt use .............................................................................24
Reminder light and buzzer ................... 339
Seat belt extender ........................................ 25
Seat belt guide ............................................... 26
Seat belt pretensioners ...............................27
SRS warning light ...................................... 335
Seat heaters .................... ............................... 249
Seating capacity............................................ 138
Seat lights........................................................ 252
Seat position memory................................... 116
Seats..................................................................... 114 Adjustment precautions .............................114
Adjustment........................................................114
Child seats/child restraint system installa-tion .................................................................... 43
Cleaning..........................................................277
Driving position memory.......................... 116
Head restraints .............................................. 119
Jam protection function............................. 115
Properly sitting in the seat .........................23
Seat heaters .................................................. 249
Seat position memory ................................ 116
Seat ventilators............................................ 249
Seat ventilators ............................................. 249
Sensor Automatic headlight system................... 167
Automatic High Beam system..............170
Inside rear view mirror.............................. 122
Intuitive parking assist..............................209
LKA (Lane-Keeping Assist).................... 191
Radar sensor........................................ 179, 217
Rain-sensing windshield wipers........... 173
Service plug .......................................................57
Service reminder message ..................... 282 Shift lever
Automatic transmission ........................... 149
Hybrid transmission................................... 155
Shift lever light .............................................. 252
Shift position and gear position .................74
Side airbags ...................................................... 28
Side marker lights.......................................... 167 Light switch .....................................................167
Replacing light bulbs ................................ 324
Side mirrors .....................................................123 Adjustment ......................................................123
BSM (Blind Spot Monitor)..................... 215
Folding...............................................................124
Linked mirror functi on when reversing
............................................................................123
Mirror position memory ............................ 116
Side turn signal lights .................................... 161 Replacing light bulbs ................................ 324
Turn signal lever ............................................ 161
Side windows ..................................................125
Slip indicator .................................................. 337
Smart access system with push-button start.................................................................. 106Antenna location ......................................... 106
Entry functions ................................................ 99
Starting the engine ..................................... 140
Starting the hybrid system .......................143
Snow mode ........................................... 153, 159
Snow tires ....................................................... 233
Spark plug ...................................................... 376
Specifications ................................................ 372
Speedometer ....................................................74
Sport mode ....................................................208
Steering lock Column lock release ......................... 141, 144
Steering lock system warning message................................................................... 141, 144
Steering wheel ................................................. 121 Adjustment ....................................................... 121
Auto tilt away................................................... 121
Heated steering wheel ............................ 249
Steering wheel position memory.......... 116