brake fluid LEXUS IS250 2016 Owners Manual

125
2-1. Driving procedures
2

When driving
NOTICE
nIf you hear a squealing or scraping noise (brake pad wear limit indicators)
Have your Lexus dealer check and replace the brake pads as soon as possible.
The rotor damage can result if the pads are not replaced when needed.
Front brake only: Moderate levels of the brake pad and disc wear allow enhanced
front braking power. As a result, the discs may wear more quickly than conventional
brake discs. Therefore, when replacing the brake pads, Lexus recommends that you
also have the thickness of the discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or
that of the brake discs are exceeded.
nIf you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually press the brake pedal to slow down the vehicle.
lIt may be difficult to control your vehicle.
lThe vehicle will make abnormal sounds.
lThe vehicle will behave abnormally.
Replace a flat tire with a new one. (→P. 4 0 6 )
nWhen encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle.
lEngine stalling
lShort in electrical components
lEngine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have your Lexus dealer check the following.
lBrake function
lChanges in quantity and quality of oil and fluid used for the engine, transmission,
transfer (AWD vehicles), differential, etc.
lLubricant condition for the propeller shaft (AWD vehicles), bearings and suspen-
sion joints (where possible) and the function of all joints, bearings, etc.

300
4-2. Maintenance
General maintenance
Engine compartment
ItemsCheck points
BatteryMaintenance-free. (→P. 32 1 )
Brake fluidAt the correct level? (→P. 31 9 )
Engine coolantAt the correct level? (→P. 31 7 )
Engine oilAt the correct level? (→P. 31 3 )
Exhaust systemNo fumes or strange sounds?
Radiator/condenser/hosesNot blocked with foreign matter?
(→P. 31 9 )
Wa s h e r f l u i dAt the correct level? (→P. 32 4 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Services Guide” or “Owners
Manual Supplement”. It is recommended that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.

310
4-3. Do-it-yourself maintenance
Engine compartment
IS350
Battery (→P. 321)
Engine oil level dipstick
(→P. 313)
Engine oil filler cap
(→P. 313)
Brake fluid reservoir
(→P. 319)
Fuse boxes (→P. 3 4 7 )
Washer fluid tank
(→P. 32 4 )
Electric cooling fans
Condenser (→P. 319)
Radiator (→P. 319)
Engine coolant reservoir
(→P. 317)

311
4-3. Do-it-yourself maintenance
4

Maintenance and care
IS250
Battery (→P. 321)
Engine oil level dipstick
(→P. 313)
Engine oil filler cap
(→P. 313)
Brake fluid reservoir
(→P. 319)
Fuse boxes (→P. 3 4 7 )
Washer fluid tank
(→P. 32 4 )
Electric cooling fans
Condenser (→P. 319)
Radiator (→P. 319)
Engine coolant reservoir
(→P. 317)

319
4-3. Do-it-yourself maintenance
4

Maintenance and care
Radiator and condenser
Check the radiator and condenser and clear any foreign objects.
If either of the above parts are extremely dirty or you are not sure of their
condition, have your vehicle checked by your Lexus dealer.
Brake fluid
nChecking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
Make sure to check the fluid type and prepare the necessary items.
nAdding fluid
CAUTION
nWhen the engine is hot
Do not touch the radiator or condenser, as they may be hot and you may be burned.
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel
nBrake fluid can absorb moisture from the air
Excess moisture in the fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.

320
4-3. Do-it-yourself maintenance
CAUTION
nWhen filling the reservoir
Take care because brake fluid can harm your hands or eyes and damage painted
surfaces.
If fluid gets in your eyes, flush your eyes with clean water immediately.
If you still experience discomfort, see a doctor.
NOTICE
nIf the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or
when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.

5

When trouble arises
379
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.
nVisible symptoms
lFluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
lFlat-looking tires or uneven tire wear
lEngine coolant temperature gauge needle continually points
higher than normal
nAudible symptoms
lChanges in exhaust sound
lExcessive tire squeal when cornering
lStrange noises related to the suspension system
lPinging or other noises related to the engine
nOperational symptoms
lEngine missing, stumbling or running rough
lAppreciable loss of power
lVehicle pulls heavily to one side when braking
lVehicle pulls heavily to one side when driving on a level road
lLoss of brake effectiveness, spongy feeling, pedal almost touches
the floor

396
5-2. Steps to take in an emergency
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
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, 20.4
kgf).
Pe d a l c l e a r a n c e *1
IS 350
IS 250
Manual transmission
Automatic transmission
4.13 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 type
7 ⎯ 9 clicks
4 ⎯ 6 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3

476
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
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