ignition Lexus IS F 2010 Audio/video System / LEXUS 2010 IS F (OM53A25U) Service Manual

387
4-3. Do-it-yourself maintenance
4
Maintenance and care
Initializing the tire pressure warning system
■The tire pressure warning system must be initialized when the tire
inflation pressure is changed (such as when changing traveling
speed.)
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the benchmark pressure.
■How to initialize the tire pressure warning system
To initialize the system, use the satellite switch. (P. 319)
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. 4 9 8 )
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.
STEP1
STEP2
STEP3

388
4-3. Do-it-yourself maintenance
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.
Recording tire inflation pressure
settings
Press and hold the “ON/OFF” but-
ton until the tire pressure warning
light blinks slowly 3 times and the
message “PRESSURE INITIAL”
showing that the initial setting is
complete is displayed on the multi-
information display.
Wait for a few minutes with the IGNITION ON mode, and then
turn the “ENGINE START STOP” switch to OFF.
STEP4
STEP5

416
4-3. Do-it-yourself maintenance
13IG210 AIgnition system
14EFI NO. 210 A
Fuel system, exhaust system, multiport
fuel injection system/sequential multi-
port fuel injection system
15H-LP R LWR15 AHeadlight low beam (right)
16H-LP L LWR15 AHeadlight low beam (left)
17F/ P M P25 AFuel system
18EFI25 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
19INJ25 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
20H-LP UPR15 AHeadlight beams
21HORN10 AHorns
22WA S H E R20 AWindshield washer
23FR TAIL10 AParking lights, side marker lights
24FR FOG15 AFront fog lights
FuseAmpereCircuit

432
5-1. Essential information
■Emergency towing procedure
Release the parking brake.
Shift the shift lever to N.
Put the “ENGINE START STOP” switch in ACCESSORY mode (engine
off) or IGNITION ON mode (engine running).
CAUTION
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive stress on
the emergency towing eyelet and the cables or chains. Always use caution for the
surroundings and other vehicles while towing.
●If the engine is not running, the power assist for the brakes and steering will not
function, making steering and braking more difficult.
NOTICE
■To prevent causing serious damage to the transmission
Never tow this vehicle from the rear with four wheels on the ground. This may cause
serious damage to the transmission.
STEP1
STEP2
STEP3

5
When trouble arises
447
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.
●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 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.
■Customization that can be configured at Lexus dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features P. 515)

5
When trouble arises
475
5-2. Steps to take in an emergency
If the shift lever cannot be shifted from P
If the shift lever cannot be shifted with your foot on the brake, there may be
a problem with the shift lock system (a system to prevent accidental opera-
tion of the shift lever). Have the vehicle inspected by your Lexus dealer
immediately.
The following steps may be used as an emergency measure to ensure that
the shift lever can be shifted.
Set the parking brake.
Turn the “ENGINE START STOP” switch to IGNITION ON
mode.
Depress the brake pedal.
Pry the cover up with a flathead
screwdriver or equivalent.
Press the shift lock override but-
ton.
The shift lever can be shifted
while the button is pressed.
STEP1
STEP2
STEP3
STEP4
STEP5

5
When trouble arises
481
5-2. Steps to take in an emergency
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●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.
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch OFF.
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.STEP2
STEP3
STEP4
STEP5

495
6-1. Specifications
6
Vehicle specifications
Ignition system
Electrical system
Differential
*: “Toyota Genuine Differential Gear Oil” is filled in your Lexus vehicle at the fac-
tory. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equiv-
alent of matching quality to satisfy the above specification. Please contact your
Lexus dealer for further details.
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.
Battery
Open voltage* at
68F (20C):12.6 12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(*: Voltage checked 20 minutes after
the engine and all the lights are turned
off)
Charging rates5 A max.
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosity*“Toyota Genuine Differential Gear Oil
LX 75W-85 GL-5” or equivalent

531
Alphabetical index
Emergency, in case of
If the engine will not start ................474
If the shift lever cannot be
shifted from P ................................... 475
If the vehicle has a discharged
battery..................................................480
If the warning buzzer sounds........ 441
If the warning light turns on ............ 441
If a warning message is
displayed .............................................. 451
If you have a flat tire ........................ 465
If you lose your keys ........................ 476
If you think something is
wrong....................................................437
If the electronic key does not
operate properly ............................. 477
If your vehicle becomes stuck .... 486
If your vehicle has to be
stopped in an emergency ......... 487
If your vehicle needs to be
towed ..................................................... 431
If your vehicle overheats................ 483
Engine
ACCESSORY mode ....................... 124
Compartment ......................................372
Engine switch ........................................ 124
Hood ....................................................... 369
How to start the engine.................... 124
Identification number......................... 491
If the engine will not start ................474
Ignition switch........................................ 124
Overheating......................................... 483
Engine compartment cover..............373Engine coolant
Capacity .................................................494
Checking ...............................................378
Preparing and checking
before winter ......................................192
Engine coolant temperature
gauge....................................................... 139
Engine immobilizer system.................. 78
Engine oil
Capacity .................................................493
Checking ............................................... 374
Preparing and checking
before winter ......................................192
Engine oil maintenance data............ 376
EPS ............................................................... 177
Event data recorder ............................ 439
First-aid kit storage belt ..................... 332
Floor mat ................................................... 331
Fluid
Brake ....................................................... 380
Washer .................................................. 385
Fog lights
Switch........................................................ 153
Wattage ................................................. 499
Footwell lights ........................................306
Front fog lights
Switch........................................................ 153
Wattage ................................................. 499
Front passenger occupant
classification system ............................ 97
F

532
Alphabetical index
Front passenger's seat belt
reminder light...................................... 444
Front seats
Adjustment................................................47
Driving position memory.................. 48
Seat position memory ........................ 52
Front turn signal lights
Switch ........................................................136
Wattage.................................................. 499
Fuel
Capacity ................................................. 492
Fuel gauge ..............................................139
Fuel pump shut off system ............438
Gas station information..................540
Information........................................... 500
Refueling ................................................... 75
Fuel door ..................................................... 75
Fuel filler door ........................................... 75
Fuel pump shut off system .................438
Fuses ......................................................... 408
Garage door opener ..........................335
Gas station information..................... 540
Gauges ...................................................... 139
Glove box ................................................. 310
Glove box light .........................................311
Hands-free system for mobile
phone...................................................... 275
Hazard lights
Switch ......................................................430
Head restraints
Adjusting .................................................. 54
Headlight aim ......................................... 422Headlight cleaner................................... 157
Headlights
Discharge headlight
precautions ....................................... 428
Replacing light bulbs ........................424
Switch ........................................................150
Wattage ................................................. 499
Heaters
Seat heaters ......................................... 325
Side mirrors.......................................... 206
Hill-start assist control .......................... 177
Hood .......................................................... 369
Hooks
Cargo.......................................................332
Coat ......................................................... 330
Shopping bag ......................................332
Horn ............................................................ 138
I/M test ..................................................... 365
Identification
Engine ......................................................492
Vehicle...................................................... 491
Ignition switch ..........................................124
Illuminated entry system .................... 306
Indicator lights .........................................143
Initialization
Items to initialize................................. 520
Inside rear view mirror .......................... 66
Interior lights
Interior lights ........................................ 306
Switch ......................................................308
Wattage ................................................. 499
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