
3286-3. Do-it-yourself maintenance
Check if the treadwear indicators are 
showing on the tires. Also check the 
tires for uneven wear, such as excessive 
wear on one side of the tread.
Check the spare tire condition and 
pressure if not rotated.New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is 
shown by a “TWI” or “ ” mark, etc., 
molded into the sidewall of each tire.
Replace the tires if the treadwear indica- tors are showing on a tire.
■When to replace your vehicle’s tires
Tires should be replaced if:
●The treadwear indicators are showing on 
a tire.
●You have tire damage  such as cuts, splits, 
cracks deep enough to expose the fabric, 
and bulges indicating internal damage.
●A tire goes flat repe atedly or cannot be 
properly repaired due to the size or loca-
tion of a cut or other damage.
If you are not sure, consult with your Lexus 
dealer.
■Tire life
Any tire over 6 years old must be checked 
by a qualified technician even if it has sel-
dom or never been used or damage is not 
obvious.
■Maximum load of tire
Check that the maximum load of the 
replacement tire is greater than 1/2 of the 
Gross Axle Weight Ratings (GAWR) of 
either the front axle or the rear axle, which-
ever is greater.
For the GAWR, see the  Certification Label. 
For the maximum load of the tire, see the 
load limit at maximum cold tire inflation 
pressure mentioned on  the sidewall of the 
tire. ( P.399)
■Tire types
●Summer tires
Summer tires are high-speed perfor-
mance tires best suited to highway driv-
ing under dry conditions. Since summer 
tires do not have the same traction per-
formance as snow tires, summer tires are 
inadequate for driving on snow-covered 
or icy roads. For driving on snow-covered 
Tires
Replace or rotate tires in accor-
dance with maintenance schedules 
and treadwear.
Checking tires
A
B
C 

3717-2. Steps to take in an emergency
7
When trouble arises
Jack handle
Towing eyelet
Wheel nut wrench
Spare tire
Jack
Location of the spare tire, jack and tools
A
B
C
D
E
WARNING
■Using the tire jack
Observe the following precautions.
Improper use of the tire jack may cause 
the vehicle to suddenly fall off the jack, 
leading to death or serious injury.
●Do not use the tire jack for any pur-
pose other than replacing tires or 
installing and removing tire chains.
●Only use the tire jack that comes with 
this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do 
not use other tire jacks for replacing 
tires on this vehicle.
●Put the jack properly in its jack point.
●Do not put any part of your body under 
the vehicle while it is supported by the 
jack.
●Do not start the engine or drive the 
vehicle while the vehicle is supported 
by the jack.
●Do not raise the vehicle while some-
one is inside.
●When raising the vehicle, do not put an 
object on or under the jack.
●Do not raise the vehicle to a height 
greater than that required to replace 
the tire.
●Use a jack stand if it is necessary to get 
under the vehicle. 

3767-2. Steps to take in an emergency
1Replace a rear tire with the compact 
spare tire.
2
Replace the flat front tire with the tire 
removed from the rear of the vehicle.
3
Fit tire chains to the front tires.
WARNING
■When using the compact spare tire
●Remember that the spare tire provided 
is specifically desi gned for use with 
your vehicle. Do not use your spare 
tire on another vehicle.
●Do not use more than one spare tire 
simultaneously.
●Replace the spare tire with a standard 
tire as soon as possible.
●Avoid sudden acceleration, abrupt 
steering, sudden braking and shifting 
operations that cause sudden engine 
braking.
■When the compact spare tire is 
attached
The vehicle speed may not be correctly 
detected, and the following systems may 
not operate correctly:
• ABS & Brake assist
• VSC
• TRAC
• Dynamic radar cruise control with full- speed range
• PCS (Pre-Collision System)
• EPS
• LTA (Lane Tracing Assist)
• Lexus parking assist monitor
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)
• BSM (Blind Spot Monitor) (if  equipped)
• Automatic High Beam
■Speed limit when using the compact 
spare tire
Do not drive at speeds in excess of 50 
mph (80 km/h) when a compact spare 
tire is installed on the vehicle.
The compact spare tire is not designed 
for driving at high speeds. Failure to 
observe this precaution may lead to an 
accident causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools 
and jack are securely in place in their 
storage location to reduce the possibility 
of personal injury during a collision or 
sudden braking.
NOTICE
■Be careful when driving over bumps 
with the compact spare tire installed 
on the vehicle
The vehicle becomes lower when driving 
with the compact spar e tire compared to 
when driving with standard tires. Be 
careful when driving over uneven road 
surfaces.
■Driving with tire chains and the com-
pact 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 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. 

4008-1. Specifications
For details, see “Uniform Tire Quality Grading” that follows.
Summer tires or all season tires (P.328)
An all season tire has “M+S” on the sidewall.  A tire not marked “M+S” is a summer tire.
Compact spare tire
Tire size ( P.401)
DOT and Tire Identification Number (TIN) ( P.401)
Location of treadwear indicators ( P.328)
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.403)
Maximum cold tire inflation pressure ( P.403)
This means the pressure to which a tire may be inflated.
“TEMPORARY USE ONLY”
A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded on its 
sidewall. This tire is designed for temporary emergency use only.
K
A
B
C
D
E
F
G
H
I 

Alphabetical Index445
Seat heaters ...................................................272
Seat position memory ............................... 123
Seat ventilators.............................................272
Seat ventilators ............................................... 271
Secondary Collision Brake ..................... 245
Sensor Automatic headlight system.................. 165
Automatic High Beam system............. 168
Inside rear view mirror............................... 131
Intuitive parking assist.............................. 220
LTA (Lane Tracing Assist)......................193
Parking Support Brake function (rear-crossing vehicles) .................................. 240
Parking Support Brake function (static  objects)........................................................ 236
Radar sensor.......................................180, 215
Rain-sensing windshield wipers........... 174
RCTA .............................................................. 228
Service reminder message .......................312
Shift lever Continuously variable transmission .. 155
Shift lock system.............................................156
Side airbags ...................................................... 30
Side doors.......................................................... 98
Side marker lights Light switch .................................................... 165
Side mirrors .....................................................132 Adjustment...................................................... 132
BSM (Blind Spot Monitor) ..................... 214
Folding ..............................................................133
Linked mirror functi on when reversing
...........................................................................133
Mirror position memory........................... 123
RCTA function .............................................227
Side turn signal lights Replacing light bulbs................................ 346
Turn signal lever .......................................... 159
Side windows ..................................................135
Smart access system with push-button  start.................................................................... 114Antenna location............................................114
Entry functions..................................... 98, 103 Starting the engine ..................................... 152
Snow tires ....................................................... 249
Spare tire Inflation pressure ....................................... 395
Storage location ...........................................371
Spark plug ...................................................... 393
Specifications ................................................ 390
Speedometer ............................................72, 75
Sport mode .................................................... 243
Steering lock Column lock release ................................. 152
Steering lock system warning message........................................................................... 152
Steering wheel Adjustment ......................................................129
Heated steering wheel .............................. 271
Meter control switches ............................... 81
Power easy access system .....................123
Steering wheel position memory.........123
Stop lights Replacing light bulbs ................................346
Storage feature .............................................277
Stuck If the vehicle becomes stuck ............... 388
Suggestion function....................................... 85
Sunshade.......................................................... 138
Sun visors ........................................................ 285
Switches “ODO TRIP” switch ........................... 74, 78
“SOS” button...................................................56
ASC (Active Sound Control) switch 164
Automatic High Beam system ............. 168
Brake hold switch ....................................... 163
BSM (Blind Spot Monitor) switch.......216
Door lock switches ....................................100
Driving mode select switch .................. 243
Driving position memory switches .....123
Dynamic radar cruise  control with full-
speed range switch .............................. 205
Emergency flashers switch .................. 350
Engine switch ................................................ 152
Fog light switch .............................................. 171