Tire Lexus GS350 2008 Owner's Guide

378
3-7. Other interior features
GS_G_U
June 19, 2008 12:54 pm
Voice recognition error message:
•“Pardon” The system responds with this message if the system does not
recognize your voice command properly. Say the command slowly again.
After the third time this happens, th e system will try to guess the command
you are requesting. If correct, say “Yes”. If not, say “No”, and the system will
prompt you with its next-best guess.
• “Slower please” The system responds with this message if you say a com-
mand before the system is ready to listen or if your voice command cannot
be recognized because of substantial background noise. Try to wait
slightly longer before speaking.
■ There are 5 ways to make a call.
Dialing a specific number
Press the button. When the system responds with “Lexus
Link ready”, say “Dial”.
When the system responds with “Phone number to dial please”,
say the entire number you wish to dial without pausing.
The system will repeat the number and ask “Yes or No”.
Say “Yes” (or “No” to try again).
The system responds with “Dialing” (your call will then be con-
nected).
Dialing digit-by-digit (“Digit Dial”)
“Digit Dial” enables you to dial a phone number by individual digit. This is
helpful when there is background noise and also improves voice recogni-
tion.
Press the button. When the system responds with “Lexus
Link ready”, say “Digit dial”.
When the system responds with “Digit please”, say the first digit
of the number to be dialed and wait for it to be repeated back to
you.
Continue one digit at a time until all digits are entered.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1
STEP2
STEP3
GS_U_G.book Page 378 Thursday, June 19, 2008 12:54 PM

379
3-7. Other interior features
3
Interior features
GS_G_U
June 19, 2008 12:54 pm
When finished, say “Dial”. The system responds with “Dialing” and
your call is placed.
If you have problems storing a number using the continuous number
method, you can store numbers one digit at a time using “Digit Store”.
Simply follow the instructions above for “Digit Dial”, except say “Digit
Store” in STEP 1 and “Store” in STEP 4.
Dialing a phone number saved as a nametag
A nametag is a convenient way to store important or frequently called
phone numbers for easy access at any time. To do this, choose a fre-
quently-called number to store, the example below uses your home tele-
phone number.
● How to store a nametag
Press the button. When the system responds with “Lexus
Link ready”, say “Store”.
When the system responds with “Phone number to store, please”,
say the entire number you wish to store with no pauses. The sys-
tem will repeat the number and ask “Yes or No”.
Say “Yes” (or “No” to try again).
When the system responds with “Nametag, please”, say “home”.
When the system responds with “About to store home. Does that
sound OK?”, say “Yes” (or “No” to try again).
The system responds with “Storing home”.
- The system can store up to 20 nametags.
- Try to use multi-syllable nametags such as “my home”, and “the office”.
- Try to avoid similar-sounding nametags like “Tim” and “Kim”.
When using the “Dial” and “Store” commands, the system will recog-
nize 7, 10, and 11-digit phone numbers. When dialing or storing a phone
number, you can say “zero” or “oh” for 0.
STEP4
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6
GS_U_G.book Page 379 Thursday, June 19, 2008 12:54 PM

Maintenance and care4
387
GS_G_U
June 19, 2008 12:54 pm
4-1. Maintenance and care .............................. 388
Cleaning and protecting the vehicle exterior............ 388
Cleaning and protecting the vehicle interior ............... 391 4-2. Maintenance .................. 394
Maintenance requirements........................ 394
General maintenance .......... 396
Emission inspection and maintenance (I/M)
programs ............................... 399
4-3. Do-it-yourself maintenance ................ 400
Do-it-yourself service precautions ........................... 400
Hood .......................................... 403
Positioning a floor jack ......... 404
Engine compartment ........... 406
Tires............................................. 421
Tire inflation pressure............ 431
Wheels ...................................... 435
Air conditioning filter ........... 437
Electronic key battery.......... 440
Checking and replacing fuses ........................................ 442
Headlight aim .......................... 467
Light bulbs................................ 470
GS_U_G.book Page 387 Thursday, June 19, 2008 12:54 PM

398
4-2. Maintenance
GS_G_U
June 19, 2008 12:54 pm
Vehicle exterior
ItemsCheck points
Doors/trunk• Operate smoothly?
Engine hood• The lock system works properly?
Fluid leaks• Is there any leakage after parking?
Ti r e
• Inflation pressure is correct?
• Tire surfaces not worn or dam-aged?
• Tires rotated according to the maintenance schedule?
• Wheel nuts are not loose?
CAUTION
■If the engine is running
Turn off the engine and ensure that there is adequate ventilation before performing
maintenance checks.
GS_U_G.book Page 398 Thursday, June 19, 2008 12:54 PM

401
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
June 19, 2008 12:54 pm
ItemsParts and tools
Engine oil level (→P. 4 0 9 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 4 4 2 )• Fuse with same amperage rating as
original
Headlight aim ( →P. 4 6 7 )• Phillips-head screwdriver
Radiator and condenser (→P. 4 1 5 )
Tire inflation pressure ( →P. 4 3 1 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 4 2 0 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel
GS_U_G.book Page 401 Thursday, June 19, 2008 12:54 PM

421
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
June 19, 2008 12:54 pm
Tires
Replace or rotate tires in accordance with maintenance schedule and
treadwear.
■Checking tires
New tread
Treadwear indicator
Worn tread
The location of treadwear indi-
cators is shown by the “TWI” or
“ ” marks, etc., molded on the
sidewall of each tire.
Check spare tire condition and
inflation pressure if not rotated.
■Tire rotation
Rotate the tires in the order
shown.
To equalize tire wear and extend
tire life, Lexus recommends that
tire rotation is carried out at the
same interval as tire inspection.
■The tire pressure warning system
Your Lexus is equipped with a tire pressure warning system that uses
tire pressure warning valves and transmitters to detect low tire infla-
tion pressure before serious problems arise. ( →P. 490, 498)
Front
GS_U_G.book Page 421 Thursday, June 19, 2008 12:54 PM

422
4-3. Do-it-yourself maintenance
GS_G_U
June 19, 2008 12:54 pm
Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and trans-
mitters must also be installed.
When new tire pressure warning valves and transmitters are installed,
new tire pressure warning valve and transmitter ID codes must be regis-
tered in the tire pressure warning computer and tire pressure warning
system must be initialized. Have tire pressure warning valve and transmit-
ter ID codes registered by your Lexus dealer. ( →P. 4 2 4 )
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the following
circumstances:
●When rotating the tires on vehicles differing with front and rear tire
inflation pressures.
● When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the pressure benchmark.
GS_U_G.book Page 422 Thursday, June 19, 2008 12:54 PM

423
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
June 19, 2008 12:54 pm
■How to initialize the tire pressure warning system
Park the vehicle in safe place and turn the “ENGINE START
STOP” switch to OFF.
While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. ( →P. 5 5 0 )
Make sure to adjust the tire pressure to the specified cold tire inflation
pressure level. The tire pressure warning system will operate based on
this pressure level.
Turn the “ENGINE START STOP” switch to IGNITION ON
mode.
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly three times and the mes-
sage “PRESSURE INITIAL”
appears on the multi-information
display.
Wait for a few minutes with the IGNITION ON mode, and then
turn “ENGINE START STOP” switch to the OFF.
STEP1
STEP2
STEP3
STEP4
STEP5
GS_U_G.book Page 423 Thursday, June 19, 2008 12:54 PM

424
4-3. Do-it-yourself maintenance
GS_G_U
June 19, 2008 12:54 pm
Registering and selecting ID codes■ Registering ID codes
2 sets of tire pressure warning valve and transmitter ID codes can be
registered. Once a second set of tires is registered at “2nd”, you can
switch between tire set settings simply by pressing the tire pressure
warning select switch.
There are 2 settings:
“MAIN” position: The ID code of the tire pressure warning valve and
transmitter on the tires originally installed on the vehicle is registered.
“2nd” position: The ID code is not registered. When you replace a new
set of tires, purchase tire pressure warning valves and transmitters
from your Lexus dealer and have the new ID code registered by your
Lexus dealer.
■ Selecting ID codes
When replacing tires, make sure to select the ID code set that matches
the new tire set. If the tire pressure warning select switch is set to the
wrong tire setting, the tire pressure warning system will not operate
properly. After driving for about 20 minutes, the tire pressure warning
light comes on after blinking for 1 minute to indicate a system malfunc-
tion.
“MAIN”
“2nd”
GS_U_G.book Page 424 Thursday, June 19, 2008 12:54 PM

425
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
June 19, 2008 12:54 pm
■When to replace your vehicle’s tires
Tires should be replaced if:
●You have tire damage such as cuts, splits, cracks deep enough to expose the
fabric or bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the size or
location of a cut or other damage
If you are not sure, consult with your Lexus dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered,
the tire pressure warning system will not work properly. After driving for about 20
minutes, the tire pressure warning light comes on after blinking for 1 minute to indi-
cate a system malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even if they
have seldom or never been us ed or damage is not obvious.
■If the tread wears down below 0. 16 in. (4 mm) on snow tires
The effectiveness of snow tires is lost.
■Low profile tires (245/40R18, P245/40R18 and 245/40ZR18 tires)
Generally, low profile tires will wear more rapidly and tire grip performance will be
reduced on snowy and/or icy roads when compared to standard tires. Be sure to
use snow tires or snow chains on snowy and/or icy roads and drive carefully at a
speed appropriate for road and weather conditions.
■Initializing the tire pressure warning system
Initialize the tires with the tire inflation pressure adjusted to the specified level.
GS_U_G.book Page 425 Thursday, June 19, 2008 12:54 PM