
4686-3. Do-it-yourself maintenance
LS600hL_U(OM50E41U)
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and trans-
mitters that allow the tire pressure warnin g system to provide advance warning in the
event of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure
warning valves and transmitte rs must be installed. (P. 455)
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in a loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a tubeless tire.
Doing so may result in an accident, causing death or serious injury.
NOTICE
■Replacing tire pressure warning valves and transmitters
●Because tire repair or replacement may affect the tire pressure warning valves
and transmitters, make sure to have tires serviced by your Lexus dealer or other
qualified service shop. In addition, make sure to purchase your tire pressure
warning valves and transmitters at your Lexus dealer.
●Ensure that only genuine Lexus wh eels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with non-
genuine wheels.

486
LS600hL_U(OM50E41U)
7-2. Steps to take in an emergency
The following may indicate a problem with your transmission. Contact
your Lexus dealer or commercial towing service before towing.
●A warning message for the hybrid system is shown on the multi-infor-
mation display and the vehicle does not move.
●The vehicle makes an abnormal sound.
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle towed by
your Lexus dealer or commercial towing service, using a lift-type truck
or flatbed truck.
Use a safety chain system for all towing, and abide by all state/provin-
cial and local laws.
Situations needs to contact dealers before towing

5147-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
Reinstall the wheel ornament.
Stow the flat tire, tire jack and all tools.5
CAUTION
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their stor-
age location to reduce the possibility of pe rsonal injury during a collision or sudden
braking.
NOTICE
■When replacing the tires
When removing or fitting the wheels, tire s or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter may be damaged if not handled correctly.
■To avoid damage to the tire pressu re 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 transmitter when replacing the tire. ( P. 455)
6

5167-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
■Location of the jack and toolsLift up the handle and fold the trunk floor back. ( P. 3 74 )
Remove the tool tray cover.
Jack handle
Towing eyelet
Parking brake release tool
Jack*
Screwdriver
Wheel nut wrench
*: Use of the jack ( P. 5 1 0 )
NOTICE
■When replacing the tires
When removing or fitting the wheels, tire s or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter 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 damage to the tire pressu re 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 transmitter when replacing the tire. ( P. 455)
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4
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5528-1. Specifications
LS600hL_U(OM50E41U)
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhanc ing additive called MMT (Methylcyclo-
pentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoli ne 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 knocking 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 convert-
ers 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 problems.
●Using unleaded gasoline with an octane number or rating lower than the level
previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■Fuel-related poor driveability
If poor driveability is encountered after us ing a different type of fuel (poor hot start-
ing, vaporization, engine knocking, etc.), discontinue the use of that type of fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

5578-1. Specifications
8
Vehicle specifications
LS600hL_U(OM50E41U)
This information has been prepared in accordance with regulations issued
by the National Highway Traffic Safety Administration of the U.S. Depart-
ment of Transportation.
It provides the purchasers and/or prospective purchasers of Lexus vehi-
cles 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 conform to Federal Safety Require-
ments 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
■Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controlle d conditions on a specified govern-
ment 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 performance of tires depends upon the actual conditions of their
use. Performance may differ significantly from the norm due to variations in
driving habits, service practices and differences in road characteristics and cli-
mate.
■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 controlled conditions on sp ecified government 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.
Uniform Tire Quality Grading

610Alphabetical index
LS600hL_U(OM50E41U)
Seat belt reminder light...................... 496
Seat belts..................................................... 36Adjusting the seat belt ........................ 37
Automatic locking retractor (ALR) .......................................................38
Child restraint system installation ..............................................69
Cleaning and maintaining the seat belt ....................................... 423
Emergency locking retractor (ELR)........................................................38
How to wear your seat belt ............. 36
How your child should wear the seat belt ..........................................38
Pre-collision seat belts .......................38
Pregnant women, proper seat belt use.......................................... 39
Reminder light and buzzer .......... 496
Seat belt extender.................................38
Seat belt pretensioners ...................... 37
SRS warning light...............................494
Seat cushion airbag ................................ 43
Seat position memory................. 172, 177
Seating capacity......................................213 Seats .................................................. 156, 162
Adjustment................................... 156, 162
Adjustment precautions.......... 161, 170
Child seats/child restraint system installation ............................. 66
Cleaning................................................. 422
Climate control seat......................... 387
Driving position memory................. 172
Head restraints ..................................... 179
Pelvic support seat with seat vibrator ..................................................166
Power easy access system .............159
Properly sitting in the seat ................ 34
Rear seat position memory ............ 177
Rear seat relaxati on system............ 167
Seat position memory ............. 172, 177
Sensor Automatic headlig ht system ........ 236
Automatic High Beam system .................................................. 242
Camera sensors ................................ 299
Driver monitor sensor..................... 299
Inside rear view mirror......................184
Lexus night view................................. 322
LKA (Lane-Keeping Assist)..........273
Radar sensor................... 267, 298, 311
Rain-sensing windshield wipers................................................... 246
Service plug................................................. 81
Service reminder indicators ................94
S