2020 Lexus LC500h run flat

3136-3. Do-it-yourself maintenance
6
Maintenance and care
●When another vehicle is running the side
of the vehicle such as in heavy traffic, it
may take longer to detect the vehicle’s
tire pressure warning valves and trans-
mitters.
●If tire pressure warning valves and trans-
mitters are in the vehicle, the ID codes
may not be registered.
If registration takes long time, perform the
procedure for ID code registration again
after parking the vehicle for 20 minutes.
If the ID codes cannot be registered even
when performing the above procedure,
contact your Lexus dealer.
 Stop the vehicle in a safe place on a
hard, flat surface.
 Set the parking brake.
 Shift the shift position to P.
 Stop the engine .
■Tools
As your vehicle is eq uipped with run-flat
tires, the following tools for replacing a tire
are not included with your vehicle. They can
be purchased at your Lexus dealer.
●Wheel nut wrench
●Jack
●Jack handle
Replacing the tire
When raising your vehicle with a
jack, position the jack correctly.
Improper placement may damage
your vehicle or cause injury.
If necessary tire replacement
seems difficult to perform, contact
your Lexus dealer.
Before jacking up the vehicle

3367-2. Steps to take in an emergency
vehicle, the towing eyelet must be
installed to your vehicle. Install the tow-
ing eyelet using the following proce-
dure.
1Take out the screwdriver and the
towing eyelet. ( P.314)
2 Remove the eyelet cover using a
flathead screwdriver.
To protect the bodywork, place a rag
between the screwdriver and the vehicle
body as shown in the illustration.
3Insert the towing eyelet into the
hole and tighten partially by hand. 4
Tighten down the towing eyelet
securely using the screwdriver or
hard metal bar.
5 Securely attach cables or chains to
the towing eyelet.
Take care not to damage the vehicle body.
6Enter the vehicle being towed and
start the engine .
If the engine does not
start, turn the engine switch switch> to IGNITION ON mode mode>.
7Shift the shift position to N and
release the parking brake.
■While towing
If the engine is not running off>, the power assist for the brakes and
steering will not function, making steering
and braking more difficult.

3377-2. Steps to take in an emergency
7
When trouble arises
Fluid leaks under the vehicle. (Water
dripping from the air conditioning
after use is normal.)
 Flat-looking tires or uneven tire
wear
 Engine coolant temperature gauge
continually points higher than nor-
mal.
 Changes in exhaust sound
 Excessive tire squeal when corner-
ing
 Strange noises related to the sus-
pension system
 Pinging or other noises related to
the engine
 Engine missing, stumbling or run-
ning roughly
 Appreciable loss of power
 Vehicle pulls heavily to one side
when braking 
Vehicle pulls heavily to one side
when driving on a level road
 Loss of brake effectiveness, spongy
feeling, pedal almost touches the
floor
If you think something is
wrong
If you notice any of the following
symptoms, your vehicle probably
needs adjustment or repair. Con-
tact your Lexus dealer as soon as
possible.
Visible symptoms
Audible symptoms
Operational symptoms

3547-2. Steps to take in an emergency
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.344)
A run-flat tire has a mark on the
sidewall.
■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.309)

3627-2. Steps to take in an emergency
remove the cover in the center of
the rear seat.
3 Insert the mechanical key into the
cylinder and turn it clockwise to
open. The glove box can be opened by per-
forming the following
operations after
unlocking the doors.
If the glove box is locked, unlock it with the
mechanical key. ( P.264)
1 Remove the cover using a flathead
screwdriver.
To prevent damage to the cover, cover the
tip of the screwdriver with a rag.
2Push the flathead screwdriver into
the part shown in the illustration to
open the glove box.
■After opening the glove box
The glove box can be opened normally by
closing the glove box after restarting the
engine .
If you have a set of jumper (or booster)
WARNING
■After unlocking the trunk
Make sure to put back the cover to the
center of the rear seat. Failure to do so
may cause an accident.
NOTICE
■When installing the cover in the cen-
ter of the rear seat
Make sure that the seat belts are not
caught in the cover. Failure to do so may
cause damage to the cover installation
clip and make it impossible to install the
cover.
Opening the glove box
Restarting the engine system>

3878-1. Specifications
8
Vehicle specifications
Tire size (P.388)
Run-flat tire (RFT) or standard tire ( P.354)
This vehicle can be equipped with either run-flat tires (RFT) or standard tires. A
mark is molded on the sidewall of the run-flat tire.
DOT and Tire Identification Number (TIN) ( P.388)
Location of treadwear indicators ( P.305)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire has a
tube inside the tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure ( P.390)
Maximum cold tire inflation pressure ( P.390)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Tire information
Typical tire symbols
A
B
C
D
E
F
G
H
I
J

3898-1. Specifications
8
Vehicle specifications
Tire use (P = Passenger car, T =
Temporary use)
Section width (millimeters)
Aspect ratio (tire height to section
width)
Tire construction code (R = Radial,
D = Diagonal)
Run-flat tire code
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol (alphabet with one
letter)
■Tire dimensionsSection width
Tire height
Wheel diameter Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation.
It provides the purchasers and/or pro-
spective purchasers of Lexus vehicles
with information on uniform tire quality
grading.
Your Lexus dealer will help answer any
questions you may have as you read this
information.
■DOT quality grades
All passenger vehicle tires must con-
form to Federal Safety Requirements in
addition to these grades. Quality
grades can be found where applicable
on the tire sidewall between tread
shoulder and maximum section width.
For example: Treadwear 200 Traction AA
Temperature A
Tire section names
A
B
C
D
E
F
G
H
A
B
C
Uniform Tire Quality Grading
A
B
C
D
E
F
G
H
I
J
K

3948-1. Specifications
*:Table 1  Occupant loading and distribution for vehicle normal load for various desig-
nated seating capacities
Section width
The linear distance between the exteriors of the sidewalls of an
inflated tire, excluding elevations due to labeling, decoration, or pro-
tective bands
SidewallThat portion of a tire between the tread and bead
Sidewall separationThe parting of the rubber compound from the cord material in the
sidewall
Snow tire
A tire that attains a traction index equal to or greater than 110, com-
pared to the ASTM E-1136 Standard Reference Test Tire, when using
the snow traction test as described in ASTM F-1805-00, Standard
Test Method for Single Wheel Driving Traction in a Straight Line on
Snow-and Ice-Covered Surfaces, and which is marked with an
Alpine Symbol ( ) on at least one sidewall
Test rimThe rim on which a tire is fitted fo r testing, and may be any rim listed
as appropriate for use with that tire
TreadThat portion of a tire that comes into contact with the road
Tread ribA tread section running circumferentially around a tire
Tread separationPulling away of the tread from the tire carcass
Treadwear indica-
tors (TWI)The projections within th e principal grooves designed to give a visual
indication of the degree s of wear of the tread
Wheel-holding fix-
tureThe fixture used to hold the wheel and tire assembly securely during
testing
Designated seating capacity,
Number of occupantsVehicle normal load, Num- ber of occupantsOccupant distribution in a normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 1552 in front, 1 in second seat, 1 in
third seat, 1 in fourth seat
16 through 2072 in front, 2 in second seat, 2 in third seat, 1 in fourth seat
Tire related termMeaning