Page 803 of 918

8027-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY” on
the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire.
(→ P. 8 4 4 )
■When using the compact spare tire
As the compact spare tire is not equipped with a tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be indicated by the tire
pressure warning system. Also, if you replace the compact spare tire after the tire
pressure warning light comes on, the light remains on.
■When the compact spare tire is equipped
The vehicle becomes lower when driving with the compact spare tire compared to
when driving with standard tires.
■If you have a flat front tire on a road covered with snow or ice (vehicles with a com-
pact spare tire)
Install the compact spare tire on one of the rear wheels of the vehicle. Perform the
following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehicle.
Fit tire chains to the front tires.
1
2
3
Page 805 of 918
8047-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
NOTICE
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving perfor-
mance.
■When replacing the tires
When removing or fitting the wheels, tires 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.
Page 856 of 918

ES350_300h_OM_OM33A60U_(U)
8558-1. Specifications
8
Vehicle specifications
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 controlled 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 specified 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
Page 857 of 918
856
ES350_300h_OM_OM33A60U_(U)
8-1. Specifications
■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 conditions on a specified indoor labora-
tory test wheel.
Sustained high temperature can cause the material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire failure.
Grade C corresponds to a level of performance which all passenger car tires
must meet under the Federal 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, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Page 876 of 918
875
ES350_300h_OM_OM33A60U_(U)
8-3. Items to initialize
8
Vehicle specifications
Items to initialize
The following items must be initialized for normal system operation
after such cases as the battery being reconnected, or maintenance
being performed on the vehicle:
ItemWhen to initializeReference
Maintenance data (U.S.A.
only)• After the maintenance is per- formedP. 666
Tire pressure warning system
• When rotating the tires
• When changing the tire infla-tion pressure by changing trav-
eling speed or load weight, etc.
P. 7 0 4
Page 897 of 918
896What to do if... (Troubleshooting)
ES350_300h_OM_OM33A60U_(U)●
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts?
(→
P. 76 2 )
●The parking brake indicator is on
Is the parking brake released? (→ P. 2 2 6 )
Depending on the situation, othe r types of warning buzzer may
also sound. ( →P. 759, 769)
●Did anyone inside the vehicle open a door during setting the
alarm?
The sensor detects it and the alarm sounds. ( →P. 8 6 )
To stop the alarm, turn the “START STOP ENGINE” <“POWER”>
switch to IGNITION ON mode or start the engine
system>.
●Is the electronic key left inside the vehicle or the moon roof
opened?
Check the message on the multi-information display.
(→ P. 76 9 )
A warning buzzer sounds during driving
An alarm is activated
and the horn sounds
A warning buzzer sounds wh en leaving the vehicle
Page 898 of 918
897What to do if... (Troubleshooting)
ES350_300h_OM_OM33A60U_(U)●
When a warning light turns on or a warning message is dis-
played, refer to P. 759, 769.
●Stop the vehicle in a safe place and replace the flat tire with the
spare tire. (
→P. 7 9 2 )
●Try the procedure for when the vehicle becomes stuck in mud,
dirt, or snow. (→ P. 8 2 8 )
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
Page 899 of 918

898Alphabetical index
ES350_300h_OM_OM33A60U_(U)
Alphabetical index
A/CAir conditioning filter .......................... 717
Automatic air conditioning system
*.................................. 353, 365
Humidity sensor ...................... 361, 374
Micro dust and pollen filter ............................................. 359, 371
ABS (Anti-lock Brake System) Function ................................................. 302
Warning light ...................................... 760
Air conditioning filter ............................ 717
Air conditioning system
*
Air conditioning filter .......................... 717
Automatic air conditioning system
*.................................. 353, 365
Humidity sensor ...................... 361, 374
Micro dust and pollen filter ............................................. 359, 371 Airbags
Airbag operating conditions .......... 46
Airbag precautions for your child ......................................... 41
Airbag warning light ........................ 760
Correct driving posture .................... 30
Curtain shield airbag operating conditions ....................... 46
Curtain shield airbag precautions .......................................... 43
Front passenger occupant classification system.........................50
General airbag precautions ............. 41
Locations of airbags............................ 38
Modification and disposal of airbags............................................... 45
Side airbag operating conditions ............................................. 46
Side airbag precautions ...................... 41
Side and curtain shield airbags operating conditions ....................... 46
Side and curtain shield
airbags precautions ........................... 41
SRS airbags ............................................. 38
Alarm ........................................................... 86 Warning buzzer ..................... 759, 769
Anchor brackets........................................ 61
Antennas (smart access system with push-button start) ..................... 127
Anti-lock Brake System (ABS)
Function .................................................. 302
Warning light ....................................... 760
Approach warning (dynamic radar cruise control)........................ 258
Armrest .................................................... 630
A