6669-1. Specifications
This information has been prepared in accordance with regulations issued by the
National Highway Traffic Safety Administra tion of the U.S. Department of Trans-
portation.
It provides the purchasers and/or prospe ctive purchasers of Lexus vehicles with
information on uniform tire quality grading.
Your Lexus dealer will help answer any ques tions you may have as you read this infor-
mation.
■DOT quality grades
All passenger vehicle tires must conform 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
■Treadwear
The treadwear grade is a comparative rati ng based on the wear rate of the tire
when tested under controlled conditio ns 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 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 difference s 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 rep-
resent 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
6679-1. Specifications
9
Vehicle 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 laboratory test
wheel.
Sustained high temperature can cause the ma terial of the tire to degenerate and
reduce tire life, and excessive temperat ure can lead to sudden tire failure.
Grade C corresponds to a level of perfor mance 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, underi nflation, or excessive loading, either separately or in com-
bination, can cause heat buildup and possible tire failure.
6849-3. Items to initialize
*:If equipped
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
Message indicating mainte-
nance is required (U.S.A. only)After the maintenance is per-
formedP. 489
Engine oil maintenance data*After changing the engine oilP. 507
Tire pressure warning system
• When rotating the tires
• When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
P. 519
716Alphabetical index
Rear window defogger ...................... 439
Refueling .................................................... 241Capacity .................................................644
Fuel types ...............................................644
If the fuel filler door cannot be opened ......................... 243
Opening the fuel tank cap............. 243
Remote Touch
*
Replacing Electronic key battery ..................... 538
Fuses........................................................ 540
Light bulbs .............................................543
Tires ..........................................................592
Reporting safety defects for U.S. owners................................... 686
Resetting the message indicating maintenance is required ................ 489
Rev indicator ...................................98, 105
Rev peak ........................................... 98, 106 Seat belt reminder light ..................... 566
Seat belts .....................................................34
Automatic Locking Retractor ........ 36
Child restraint system installation ............................................. 58
Cleaning and maintaining the seat belt .......................................486
Emergency Locking Retractor................................................ 36
How to wear your seat belt............. 34
How your child should wear the seat belt .......................................... 36
Pregnant women, proper seat belt use ..........................................37
Reminder light and buzzer ...........566
Seat belt extender ................................ 36
Seat belt guide ....................................... 35
Seat belt pretensioners...................... 35
SRS warning light ..............................565
Seat heaters.............................................446
Seat position memory .......................... 169
Seat ventilators....................................... 447
Seating capacity ................................... 204
S
718Alphabetical index
SMS (Short message service)......... 405
Snow mode ............................................... 214
Snow tires ................................................ 334
Spare tire.................................................. 592Inflation pressure ................................652
Storage location ................................ 593
Spark plug ............................................... 648
Specifications ......................................... 640
Speed indicator ..............................98, 105
Speedometer .................................. 96, 102
Sport mode ............................................. 294
Steering lock ........................................... 210 Column lock release ......................... 210
Steering wheel ......................................... 176 Adjustment ..............................................176
Audio switches ....................................344
Auto tilt away.......................................... 177
Heated steering wheel ....................445
Steering wheel position memory.............................. 169
Stop lights Replacing light bulbs ....................... 550
Storage feature .......................................451
Stuck If the vehicle becomes stuck ....... 636
Sun shade ................................................. 188
Sun visors ................................................. 455 Switches
Active rear wing switch .................. 326
ASC (Active Sound Control) switch ....................................................222
Audio remote control switches .............................................. 344
Automatic High Beam system ....227
BSM (Blind spot monitor) switch ..................................................... 313
Cruise control switch .......... 245, 249
Door lock switches ............................. 143
Driving mode select switch .......... 294
Driving position memory switches ................................................169
Dynamic radar cruise control switch................................... 249
Emergency flashers switch ...........554
Engine switch ...................................... 207
Fog light switch ................................... 232
Garage door opener switches ..............................................460
Heated steering wheel switch ................................................... 445
Ignition switch...................................... 207
Intuitive parking assist switch....... 270
LDA (Lane Departure Alert) switch ................................................... 264
Light switches ...................................... 224
Meter control switches ............... 111, 118
720Alphabetical index
Tire pressure warning system .......... 518Initializing................................................. 518
Installing tire pressure warning valves and transmitters ................. 518
Registering ID codes ........................ 519
Tire pressure warning reset switch..................................................... 519
Warning light .......................................567
Tires.............................................................. 517 Chains......................................................333
Checking................................................. 517
Emergency tire puncture repair kit ............................................. 606
If you have a flat tire .............592, 606
Inflation pressure ................................652
Information ............................................. 661
Replacing ...............................................592
Rotating tires ......................................... 517
Size ............................................................652
Snow tires ..............................................334
Spare tire ................................................592
Tire inflation pressure display function ................................................. 518
Tire pressure warning system ...... 518
Warning light .......................................567 Tools .............................................. 593, 608
Top tether strap ........................................ 76
Torque Vectoring Differential
(TVD) ..................................................... 329
Total load capacity............................... 204
Towing Dinghy towing ..................................... 206
Emergency towing ...........................556
Towing eyelet ......................................559
Trailer towing.......................................205
TRAC (Traction Control)................. 298
Traction Control (TRAC)................. 298
Trailer towing ......................................... 205
Transmission ............................................ 213 Automatic transmission .................... 213
Driving mode select switch .......... 294
If the shift lever cannot be shifted from P .....................................218
M mode .................................................... 216
Paddle shift switches............... 215, 216
Trip meters....................................... 96, 102