run flat Lexus IS F 2008 Do-It-Yourself Maintenance /

TABLE OF CONTENTSIndex
4
Power outlet .................................... 241
Seat heaters .................................... 242
Seat heaters and ventilators .... 244
Armrest ............................................ 246
Trunk storage extension............ 247
Coat hooks ..................................... 249
Floor mat......................................... 250
Trunk features................................. 251
Garage door opener .................. 254
Compass.......................................... 259
4-1. Maintenance and care............ 264 Cleaning and protecting the vehicle exterior................... 264
Cleaning and protecting the vehicle interior .................... 267
4-2. Maintenance ............................. 270 Maintenance requ irements ..... 270
General maintenance ................ 272
Emission inspection and maintenance (I/M)
programs ...................................... 275 4-3. Do-it-yourself
maintenance............................ 276
Do-it-yourself service precautions .................................. 276
Hood.................................................. 279
Positioning a floor jack.............. 280
Engine compartment.................. 282
Tires ................................................... 296
Tire inflation pressure................. 307
Wheels................................................. 311
Air conditioning filter................... 313
Electronic key battery ................. 316
Checking and replacing fuses ................................................. 318
Headlight aim................................. 332
Light bulbs ....................................... 334
5-1. Essential information .............. 340 If your vehicle needs to be towed ...................................... 340
If you think something is wrong ......................................... 346
Fuel pump shut off system ........ 347
Event data recorder ................... 348
4Maintenance and care
5When trouble arises

7
: If equipped
Tires
●Replacement
● Inflation pressure
● Information
P. 374
P. 407
P. 412
Tail lights P. 139
Side marker lights P. 139
Trunk P. 41
Rear window defogger P. 194
Doors P. 37
Fuel filler door P. 67
Rear turn signal lights
P. 126

95
1-7. Safety information
1
Before driving
CAUTION
■Child restraint precautions
●Lexus strongly urges the use of a proper child restraint system that conforms to
the size of the child, installed on the rear seat. According to accident statistics, the
child is safer when properly restrained in the rear seat than in the front seat.
●Never install a rear-facing child restraint system on the front passenger seat even
if the “AIR BAG OFF” indicator light is illuminated. In the event of an accident, the
force of the rapid inflation of the front passenger airbag can cause death or seri-
ous injury to the child if the rear-facing child restraint system is installed on the
front passenger seat.
●A forward-facing child restraint system shou ld allowed to be installed on the front
passenger seat only when it is unavoidable. Always move the seat as far back as
possible even if the “AIR BAG OFF” indicator light is illuminated, because the
front passenger airbag could inflate with considerable speed and force. Other-
wise, the child may be killed or seriously injured.
●Do not use the seat belt extender when installing a child restraint system on the
front or rear passenger seat. If installing a child restraint system with the seat belt
extender connected to the seat belt, the seat belt will not securely hold the child
restraint system, which could cause death or serious injury to the child or other
passengers in the event of collision.
●Do not allow the child to lean his/her head or any part of his/her body against the
door or the area of the seat, front pillar, rear pillar or roof side rail from which the
side airbags or curtain shield airbags deploy even if the child is seated in the child
restraint system. It is dangerous if the side airbags and curtain shield airbags
inflate, and the impact could cause death or serious injury to the child.
●Make sure you have complied with all inst allation instructions provided by the
child restraint manufacturer and that the sy stem is properly secured. If it is not
secured properly, it may cause death or seri ous injury to the child in the event of a
sudden stop or accident.
■When the child restraint system is not in use
●Keep the child restraint system properly secu red on the seat even if it is not in use.
Do not store the restraint unsecured in the passenger compartment.
●If it is necessary to detach the child restraint system, remove it from the vehicle or
store it securely in the trunk. This will prevent it from injuring passengers in the
event of a sudden stop or accident.

274
4-2. Maintenance
Vehicle exterior
ItemsCheck points
Steering wheel
• Moves smoothly?
• Has correct free play?
• No strange noises?
ItemsCheck points
Door/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?
• Wheel nuts are not loose?
CAUTION
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.

340
5-1. Essential information
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your transmission. Contact
your Lexus dealer before towing.
● The engine is running, but the vehicle will not move.
● The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available, in an emergency your vehicle may be tem-
porarily towed using a cable or chain secured to the emergency towing
eyelet. This should only be attempted on hard, surfaced roads for short
distances at low speeds.
A driver must be in the vehicle to s teer and operate the brakes. The vehi-
cle’s wheels, drive train, axles, steering and brakes must be in good condi-
tion.
Towing eyelet
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing se rvice, using a lift-type truck or a flat
bed truck.
Use a safety chain system for all towi ng, and abide by all state/provincial
and local laws.
If towing from the rear, the vehicle’s front wheels and axles must be in good
condition. ( P. 344)
If they are damaged, use a to wing dolly or flat bed truck.

346
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temper ature gauge needle continually points
higher than normal
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
●Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, sp ongy feeling, pedal almost touches
the floor

380
5-2. Steps to take in an emergency
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to the vehicle
suddenly falling off the jack.
●Do not use the tire jack for any purpose other than replacing tires.
●Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do no t use other tire jacks for replacing tires
on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle supported by the jack.
●Do not start or run the engine while your vehicle is supported by the jack.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greate r than that required to replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one working on or
near the vehicle may be injured.
■Replacing a flat tire
Observe the following precautions to reduce the risk of death or serious injury.
●Never use oil or grease on the wheel bolts or wheel nuts.
The oil or grease can cause the wheel nuts to loosen, causing a serious accident.
Remove any oil or grease on the wheel bolts or wheel nuts.
●Have the wheel nuts tightened with a torque wrench to 76 ft•lbf (103 N•m, 10.5
kgf•m) as soon as possible after changing wheels.
Failure to follow these precautions could cause the nuts to loosen and the wheels
may fall off, which could lead to an accident causing death or serious injury.

446
Alphabetical index
Tachometer..................................................128
Tail lights Switch ........................................................139
Talk switch*
Telephone switch*
Theft deterrent system Alarm ........................................................... 72
Engine immobilizer system ............. 70
Theft prevention labels .......................... 74
Tire inflation pressure .........................307
Tire information Glossary................................................... 417
Size ............................................................. 414
Tire identification number ............... 414
Uniform tire quality grading ...........415
Tires Chains ...................................................... 180
Checking ............................................... 296
If you have a flat tire .......................... 374
Inflation pressure................................ 307
Inflation pressure sensor................ 296
Information.............................................. 412
Replacing ............................................... 374
Rotating tires ......................................... 301
Size ........................................................... 407
Snow tires ............................................... 180
Tools ........................................................... 374
Total load capacity ................................ 179
Towing Dinghy towing ...................................... 183
Emergency towing ...........................340
Trailer towing.........................................182 TRAC ..........................................................166
Traction control.......................................166
Transmission shift switches.......120, 122
Trip meter ................................................. 128
Trunk
Extending a space ............................. 247
Opener ........................................................41
Trunk light Trunk light ................................................. 42
Wattage ................................................. 408
Turn signal lights Replacing light bulbs ....................... 334
Switch ........................................................ 126
Wattage ................................................. 408
Vanity lights Vanity lights...........................................234
Wattage ................................................. 408
Vanity mirrors ........................................ 234
VDIM...........................................................166
Vehicle dynamics integrated management .........................................166
Vehicle identification number......... 399
Vehicle stability control .......................166
Ventilators ............................................... 244
VSC .............................................................166T
V

449
What to do if...
What to do if...
A tire puncturesP. 3 74If you have a flat tire
The engine does not start
P. 3 8 3If the engine will not start
P. 7 0Engine immobilizer system
P. 3 8 9If the vehicle battery is discharged
The shift lever cannot be
moved outP. 3 8 4If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 3 9 2If your vehicle overheats
The key is lostP. 3 8 5If you lose your keys
The battery runs outP. 3 8 9If the vehicle battery is discharged
The doors cannot be lockedP. 3 7Doors
The horn begins to soundP. 7 2Alarm
The vehicle is stuck in mud or
sandP. 3 9 5If the vehicle becomes stuck

452
GAS STATION INFORMATION
Auxiliary catch leverP. 2 7 9Trunk openerP. 4 1Fuel filler door P. 6 7
Hood lock release lever P. 2 7 9Fuel filler door openerP. 6 7Tire inflation pressureP. 4 0 7
Fuel tank capacity16.9 gal. (64 L, 14.0 lmp.gal.)
Fuel typeUnleaded gasoline only P. 68, 401
Cold tire inflation
pressureP. 4 0 7
Engine oil capacity
(Drain and refill)qt. (L, Imp.qt.)
With filter 9.8 (9.3, 8.2)
Without filter 8.7 (8.2
, 7. 2)
Engine oil type
Toyota Genuine Motor Oil or equivalent
Oil grade: ILSAC multigrade engine oil P. 402
Recommended oil viscosity: SAE 5W-30