2010 Lexus IS250 ignition

444
4-3. Do-it-yourself maintenance
14IG210 AIgnition system
15EFI NO.210 AFuel system, exhaust system
16H-LP R LWR15 AHeadlight low beam (right)
17H-LP L LWR15 AHeadlight low beam (left)
18F/ P M P25 AFuel system
19EFI25 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
20INJ20 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
21H-LP UPR15 AHeadlight high beams
22HORN10 AHorns
23WA S H E R20 AWindshield washer
24FR TAIL10 AParking lights
25FR FOG15 AFront fog lights
FuseAmpereCircuit

476
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.

510
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 part 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 of the 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 vehicle checked at your Lexus dealer
as soon as possible.STEP5
STEP6

525
6-1. Specifications
6
Vehicle specifications
Cooling system
Ignition system
Capacity9.6 q t .
(9.1 L, 8.0 Imp. 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 the engine.

566
Alphabetical index
Cruise control
Cruise control ....................................... 175
Dynamic radar cruise control ....... 179
Cup holder ..............................................336
Curtain shield airbags............................ 93
Customizable features ...................... 550
Daytime running light system ........... 166
Defogger
Rear window ........................................ 228
Side mirror ............................................ 228
Dimension ................................................520
Dinghy towing ............................... 215, 216
Display
Dynamic radar cruise control ....... 179
Satellite switch mode ....................... 342
Trip information ..................................... 161
Warning message............................ 480
Do-it-yourself maintenance .............394
Door courtesy lights
Door courtesy lights......................... 329
Wattage.................................................. 534
Door pockets......................................... 338
Doors
Door lock................................ 28, 40, 43
Door windows ....................................... 76
Side mirrors ..............................................73
Driver's seat belt reminder light ..... 473
Driving
Correct posture ...................................... 91
Procedures ............................................. 124
Driving position memory ...................... 53Electric power steering........................196
Electronic key
If the electronic key does not
operate properly............................505
Emergency, in case of
If the engine will not start .................501
If the shift lever cannot be
shifted from P................................... 503
If the vehicle has a discharged
battery ................................................. 509
If the warning buzzer sounds........ 471
If the warning light turns on............ 471
If a warning message is
displayed ............................................ 480
If you have a flat tire .........................492
If you lose your keys ........................ 504
If you think something is
wrong ...................................................467
If the electronic key does not
operate properly............................505
If your vehicle becomes stuck ...... 515
If your vehicle has to be
stopped in an emergency ........... 517
If your vehicle needs to be
towed ..................................................... 461
If your vehicle overheats.................. 512
Emergency flashers
Switch ...................................................... 460
Engine
Compartment ..................................... 400
Engine switch ........................................ 134
Hood ........................................................397
How to start the engine ................... 134
Identification number ........................ 521
If the engine will not start .................501
Ignition switch ....................................... 134
Overheating .......................................... 512
D
E

568
Alphabetical index
Hands-free system
for mobile phone ...............................298
Hazard lights
Switch ......................................................460
Head restraints
Adjusting .................................................. 59
Headlight aim .......................................... 451
Headlight cleaner ...................................174
Headlights
Discharge headlight
precautions .......................................458
Replacing light bulbs........................ 452
Switch ....................................................... 165
Wattage.................................................. 534
Heaters
Seat heaters ............................... 348, 351
Side mirror ............................................ 228
Hill-start assist control ......................... 196
Hood .......................................................... 397
Hooks
Cargo ......................................................360
Coat .........................................................358
Shopping bag ......................................360
Horn ............................................................ 150
I/M test ......................................................393
Identification
Engine .......................................................521
Vehicle ......................................................521
Ignition switch.......................................... 134
Illuminated entry system ....................329
Indicator lights......................................... 157
Initialization
Items to initialize .................................556Inside rear view mirror ...........................72
Interior lights
Interior lights .........................................329
Switch ........................................................ 331
Wattage ................................................. 534
Jack
Positioning a floor jack ................... 398
Vehicle-equipped jack....................492
Jack handle ............................................. 492
Keyless entry ............................................. 40
Keys
Electronic key ......................................... 24
Engine switch ........................................ 134
If you lose your keys ........................ 504
If the electronic key does not
operate properly............................505
Key number.............................................. 24
Keyless entry........................................... 40
Keys.............................................................. 24
Mechanical key ......................................25
Wireless remote control key.......... 40H
I
J
K

571
Alphabetical index
Shift lever
Automatic transmission.................... 139
If the shift lever cannot be
shifted from P ...................................503
Manual transmission .......................... 145
Shift lever lights ..................................... 329
Shift lock system ................................... 503
Shopping bag hooks ........................... 360
Side airbags ................................................93
Side marker lights
Switch ........................................................165
Side mirror
Adjusting and folding .......................... 73
Mirror position memory ................... 53
“SOS” button ..........................................373
Smart access system with
push-button start
Entry function ......................................... 28
Starting the engine.............................. 134
Spare tire
Inflation pressure ............................... 425
Storage location................................. 492
Spark plug ............................................... 525
Specifications......................................... 520
Speedometer
Speed indicator ......................................151
Speedometer ..........................................151Steering wheel
Audio switches.................................... 277
Manual adjustment...............................69
Power adjustment................................. 70
Steering wheel position
memory .................................................. 53
Storage feature......................................333
Stuck
If your vehicle becomes stuck ...... 515
Sun visors .................................................339
Sunshade
Rear.......................................................... 355
Roof............................................................. 80
Switch
ECT switch............................................. 140
Emergency flasher switch ............ 460
Engine switch ........................................ 134
ETCS switch .......................................... 146
Fog light switch .................................... 168
Hazard light switch .......................... 460
Ignition switch ....................................... 134
Light switches ....................................... 165
Power door lock switch .................... 43
Power window switch ........................ 76
Satellite switches................................. 342
Transmission shift switches .............142
Window lock switch............................ 76
Wiper and washer switch............... 169