ignition Lexus IS250 2009 Using the audio system / LEXUS 2009 IS350/250 (OM53669U) Service Manual

328
4-3. Do-it-yourself maintenance
■How to initialize the tire pressure warning system
To initialize the system, use the satellite switch. ( P. 260)
Park the vehicle in safe plac e and turn the “ENGINE START
STOP” switch OFF.
While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. ( P. 4 3 9 )
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.
The tire inflation pressure initial-
ization setting display
Continue to press  or  until the
initialization setting display
appears.
It may take several minutes to com-
plete the setting. Wait for several
minutes before turning the
“ENGINE START STOP” switch to
OFF if necessary.
STEP1
STEP2
STEP3
STEP4

329
4-3. Do-it-yourself maintenance
4
Maintenance and care
Recording tire inflation pressure
settings
Push and hold the “ON/OFF” but-
ton until the tire pressure warning
light blinks slowly three times and
the message “PRESSURE INI-
TIAL” appears on the multi-infor-
mation display.
Wait for a few minutes with the IGNITION ON mode, and then
turn the “ENGINE START STOP” switch OFF.
Registering and selecting ID codesTo select tire pressure warning valve and transmitter ID codes, use the
satellite switch. ( P. 260)
■ Registering ID codes
2 sets of tire pressure warning va lve and transmitter ID codes can be
registered. Once a second set of ti res 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 th e new ID code registered by your
Lexus dealer.
STEP5

354
4-3. Do-it-yourself maintenance
■Engine compartment (type B fuse box)
FuseAmpereCircuit
1SPARE30 ASpare fuse
2SPARE25 ASpare fuse
3SPARE10 ASpare fuse
4FR CTRL-B25 AHeadlight high beam, horn
5A/F15 AExhaust system
6ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
7ALT-S7. 5 ACharging system
8STR LOCK25 ASteering lock
9H-LP CLN30 AHeadlight cleaner
10A/C COMP7. 5 AAir conditioning system
11DEICER25 A
12FR CTRL-AM30 AFront fog lights, parking lights, wind-
shield washer
13IG210 AIgnition system

388
5-2. Steps to take in an emergency
■If the tire pressure warning system is inoperative
The tire pressure warning system will be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmitters are used
●If the ID code on the tire pressure warning valves and transmitters is not regis-
tered in the tire pressure warning computer
●If a different set of tires has been selected using the satellite switch.
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or higher
The tire pressure warning system may be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are nearby
●If a radio set at similar frequencies is in use in the vehicle
●If there is a lot of snow or ice on the vehicle, in particular around the wheels or
wheel housings
●If non-genuine Lexus wheels are used (Even if you use Lexus wheels, the tire
pressure warning system may not work properly with some types of tires.)
●If tire chains are used
■If the tire pressure warning light comes on after blinking for 1 minute frequently
If the tire pressure warning light comes on after blinking for 1 minute frequently
when the “ENGINE START STOP” switch is turned to IGNITION ON mode, have
it checked by your Lexus dealer.

422
5-2. Steps to take in an emergency
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any pa rt other than the intended terminal.
●Do not allow the jumper cables to come into contact with the “+” and “-” termi-
nals.
●Do not allow open flame or use matches, cigarette lighters or smoke near the
battery.
Maintain the engine speed on th e second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the ve hicle checked at your Lexus dealer
as soon as possible.STEP5
STEP6

435
6-1. Specifications
6
Vehicle specifications
Cooling system
Ignition system
Capacity9.6 q t .
(9.1 L, 8.0 lmp.qt.)
Coolant type
Use either of the following.• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili- cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
Spark plug
Make
GapDENSO FK20HBR11
0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.

478
Alphabetical index
Cruise controlCruise control .......................................166
Dynamic radar cruise control .......170
Cup holder ..............................................254
Curtain shield airbags............................84
Customizable features ........................ 461
Daytime running light system ........... 157
Defogger Rear window ..........................................218
Side mirror ..............................................218
Dimension ................................................430
Dinghy towing ............................ 205, 206
Display Dynamic radar cruise control .......170
Satellite switch mode .......................260
Trip information ....................................152
Warning message............................. 392
Do-it-yourself maintenance .............304
Door courtesy lights Door courtesy lights..........................247
Wattage.................................................. 445
Door pockets..........................................256
Doors Door glasses ........................................... 69
Door lock.................................24, 36, 39
Side mirrors ............................................. 66
Driver's seat belt reminder light .... 385
Driving Correct posture .................................... 82
Procedures .............................................. 116
Driving position memory ......................48 Electric power steering....................... 186
Electronic key
If the electronic key does not operate properly.............................. 417
Emergency, in case of If the engine will not start ................. 413
If the shift lever cannot be shifted from P..................................... 415
If the vehicle has discharged battery ................................................... 421
If the warning buzzer sounds...... 383
If the warning light turns on.......... 383
If the warning message is displayed .............................................392
If you have a flat tire ........................ 404
If you lose your keys .......................... 416
If you think something is wrong ...................................................379
If the electronic key does not operate properly.............................. 417
If your vehicle becomes stuck ..... 427
If your vehicle needs to be towed ....................................................373
If your vehicle overheats.................424
Emergency flashers Switch ....................................................... 372
Engine Compartment ....................................... 310
Engine switch ........................................ 126
Hood ....................................................... 307
How to start the engine ................... 126
Identification number ........................ 431
If the engine will not start ................. 413
Ignition switch ....................................... 126
Overheating .........................................424
D
E

480
Alphabetical index
Hazard lightsSwitch ...................................................... 372
Head restraints Adjusting .................................................. 54
Headlight aim ......................................... 362
Headlight cleaner .................................. 165
Headlights Discharge headlights precautions .......................................369
Replacing light bulbs........................ 363
Switch ....................................................... 156
Wattage.................................................. 445
Heaters Seat heaters ..............................266, 269
Side mirror ..............................................218
Hill-start assist control ......................... 186
Hood ..........................................................307
Hooks Cargo ...................................................... 278
Coat ......................................................... 276
Shopping bag ...................................... 278
Horn .............................................................. 141
I/M test ..................................................... 303
Identification Engine .......................................................431
Vehicle ......................................................431
Ignition switch.......................................... 126
Illuminated entry system .................... 247
Indicator lights......................................... 148
Initialization Items to initialize ................................. 467 Inside rear view mirror .......................... 65
Interior lights
Interior lights ......................................... 247
Switch .......................................................249
Wattage ................................................. 445
Jack Positioning a floor jack ...................308
Vehicle-equipped jack................... 404
Jack handle ............................................. 404
Keyless entry ............................................. 36
Keys Electronic key .........................................20
Engine switch ........................................ 126
If you lose your keys .......................... 416
If the electronic key does not operate properly.............................. 417
Key number..............................................20
Keyless entry............................................36
Keys..............................................................20
Mechanical key ........................................21
Wireless remote control key...........36H
I
J
K

483
Alphabetical index
Shift leverAutomatic transmission......................131
If the shift lever cannot be shifted from P ..................................... 415
Manual transmission .......................... 137
Shift lever lighting.................................. 247
Shift lock system ..................................... 415
Shopping bag hooks ............................278
Side airbags ............................................... 84
Side marker lights Switch ........................................................156
Side mirror Adjusting and folding ......................... 66
Mirror position memory ................... 48
Smart access system with push-button startEntry function ..........................................24
Starting the engine.............................. 126
Spare tire Inflation pressure ............................... 336
Storage location................................. 404
Spark plug ............................................... 435
Specifications......................................... 430
Speech command switch*
Speedometer Speed indicator .................................... 142
Speedometer ........................................ 142 Steering wheel
Audio switches....................................245
Manual adjustment............................... 62
Power adjustment................................. 63
Steering wheel positionmemory ..................................................48
Storage feature....................................... 251
Stuck If your vehicle becomes stuck ..... 427
Sun visors ................................................. 257
Sunshade Rear........................................................... 273
Roof.............................................................. 72
Switch ECT switch..............................................132
Emergency flasher switch ............. 372
Engine switch .........................................126
ETCS switch .......................................... 138
Fog light switch .................................... 159
Hazard light switch ........................... 372
Ignition switch ........................................126
Light switches ....................................... 156
Power door lock switch .................... 39
Power window switch ........................69
Satellite switches................................ 260
Transmission shift switches ............ 134
Window lock switch............................69
Wipers and washer switch ............ 160
*: Refer to the “Navigatio n System Owner’s Manual”