2009 Lexus IS250 brake fluid

5
When trouble arises
379
5-1. Essential information
08_IS350/250_U_(L/O_0808)
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 temperature 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

5
When trouble arises
383
08_IS350/250_U_(L/O_0808)
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer:

P. 3 9 5
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Brake system warning light (warning buzzer)*
• Low brake fluid
• Malfunction in the brake booster systemThis light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released the system is operating normally.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, but then turns off, this does not necessar-
ily indicate a malfunction in the system.

396
5-2. Steps to take in an emergency
08_IS350/250_U_(L/O_0808)
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates that the trunk is
not fully closed. flashes and a
buzzer sounds to indi-
cate that trunk is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
Close the trunk.
(Flashing)
(If equipped)
Indicates that the moon
roof is not fully closed
(with the “ENGINE
START STOP” switch
OFF and the driver’s
door opened).
Close the moon roof.
Indicates that the parking
brake is still engaged.
flashes and a
buzzer sounds to indi-
cate that the parking
brake is still engaged
(with the vehicle having
reached a speed of 3
mph [5 km/h]).
Release the parking
brake.
Indicates that the washer
fluid level is low.Add washer fluid.

438
6-1. Specifications
08_IS350/250_U_(L/O_0808)
Brakes
*1: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50
kgf) while the engine is running.
*2: Parking brake pedal travel when depressed with a force of 67.4 lbf (300 N,30.6 kgf).
*3: Parking brake lever travel when pulled up with a force of 45.0 lbf (200 N, 20.4kgf).
Pe d a l c l e a r a n c e *1
IS 350
IS 250
Manual transmission
Automatic transmission4.13 in. (105 mm) Min.
4.09 in. (104 mm) Min.
4.3 in. (108 mm) Min.
Pedal free play0.04  0.08 in. (1.0  2.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Parking brake pedal travel *2/
lever travel
*3
Pedal type
Lever type7  9 clicks
4
 6 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3

476
08_IS350/250_U_(L/O_0808)
Alphabetical index
Alphabetical index
A/C ............................................................. 210
ABS.............................................................. 186
AFS .............................................................. 157
Adaptive front lighting system ......... 157
Air conditioning filter .......................... 342
Air conditioning system
Air conditioning filter ....................... 342
Automatic air conditioning system ....................................................210
Airbags
Airbag operating conditions........... 86
Airbag precautions for your child.......................................................... 90
Airbag warning light ........................384
Curtain shield airbag operating conditions.............................................. 87
Curtain shield airbag precautions .......................................... 90
Front passenger occupant classification system......................... 95
General airbag precautions ........... 90
Locations of airbags............................ 84
Modification and disposal of airbags .................................................... 94
Proper driving posture ............. 82, 90
Side airbag operating conditions.............................................. 87
Side airbag precautions .................... 90
SRS airbags ............................................. 84
Alarm ............................................................ 79
Antenna .................................................... 226
Anti-lock brake system ....................... 186
Armrest..................................................... 272
Ashtrays .................................................... 263
Audio input .............................................. 244 Audio system
Antenna...................................................226
Audio input............................................244
AUX adapter .......................................244
CD player/changer ..........................229
MP3/WMA disc............................... 235
Optimal use ........................................... 241
Portable music player ...................... 244
Radio ........................................................ 222
Steering wheel audio switch........ 245
Automatic air conditioning
system ..................................................... 210
Automatic headlight leveling system ..................................................... 158
Automatic light control system.........156
Automatic transmission
Automatic transmission ..................... 131
If the shift lever cannot be
shifted from P..................................... 415
S mode ..................................................... 134
AUX adapter ......................................... 244
Back-up lights
Wattage ................................................. 445
Battery
Checking................................................. 321
If the vehicle has discharged battery ................................................... 421
Preparing and checking before winter.................................... 200
Bottle holders......................................... 256
Brake
Fluid ............................................................ 319
Parking brake........................................ 140
Brake assist .............................................. 186
A
B

479
Alphabetical index
08_IS350/250_U_(L/O_0808)
Engine compartment cover............... 312
Engine coolant
Capacity................................................. 435
Checking ................................................. 317
Preparing and checking before winter....................................200
Engine coolant temperature gauge ....................................................... 142
Engine immobilizer system .................. 77
Engine oil
Capacity................................................. 434
Checking ................................................. 313
Preparing and checking
before winter....................................200
Engine oil maintenance data ............. 316
EPS...............................................................186
Event data recorder ..............................381
First-aid kit storage belt......................278
Floor mat................................................... 277
Fluid
Brake ......................................................... 319
Washer ................................................... 324
Fog lights
Switch ........................................................159
Wattage ................................................. 445
Foot well lighting ................................... 247
Front fog lights
Switch ........................................................159
Wattage ................................................. 445
Front passenger occupant classification system ............................ 95
Front passenger's seat belt reminder light..................................... 385
Front seats
Adjustment ............................................... 46
Driving position memory ..................48
Seat position memory ........................ 52
Front turn signal lights
Switch........................................................ 139
Wattage..................................................445
Fuel
Capacity .................................................433
Fuel gauge...............................................142
Fuel pump shut off system............ 380
Gas station information ................. 488
Information ............................................446
Refueling.................................................... 74
Fuel door ..................................................... 74
Fuel filler door ........................................... 74
Fuel pump shut off system ................ 380
Fuses .......................................................... 347
Garage door opener ........................... 281
Gas station information..................... 488
Gauges ...................................................... 142
Glove box ................................................. 251
Glove box light ...................................... 252F
G

485
Alphabetical index
08_IS350/250_U_(L/O_0808)
Warning buzzers
Brake system ....................................... 383
Open door ..........................................385
Seat belt reminder ............................385
Warning lights
Anti-lock brake system .................. 384
Brake assist system .......................... 384
Brake system ....................................... 383
Charging system ............................... 384
Electric power steering warning light ..................................... 384
Low fuel level.......................................385
Malfunction indicator lamp .......... 384
Master warning light ........................385
Open door ...........................................385
Pre-collision system ......................... 384
Pretensioners ...................................... 384
Seat belt reminder light ..................385
SRS airbags .......................................... 384
Tire pressure warning
light........................................................385
Warning messages
AWD system....................................... 393
Dynamic radar cruise control .......................393, 395
Engine oil level.................................... 395
Engine oil maintenance.................. 395
Engine oil pressure........................... 392
Hood ....................................................... 395
Intuitive parking assist .........393, 395
Moon roof............................................. 395
Open door ........................................... 395
Parking brake ...................................... 395
Pre-collision system .............393, 395 Smart access system with
push-button start ........................... 400
Steering lock.........................................393
Tire pressure warning system................... 393, 395
Trunk ....................................................... 395
Washer fluid ........................................ 395
Washer
Checking ............................................... 324
Preparing and checking
before winter ................................... 200
Switch........................................................ 160
Washing and waxing ........................... 292
Weight
Cargo capacity .................................... 196
Load limits .............................................. 199
Weight.................................................... 430
Wheels ......................................................340
Window glasses ...................................... 69
Window lock switch ............................... 69
Windows
Power windows .....................................69
Rear window defogger.................... 218
Washer .................................................... 160
Windshield wipers................................. 160
Wireless remote control key
Replacing the battery.......................345
WMA disc ............................................... 235
W
*: Refer to the “Navigation System Owner’s Manual”