transmission Lexus IS250 2008 Using the air conditioning system and defogger / LEXUS 2008 IS250 (OM53699U) Service Manual

5
When trouble arises
395
5-2. Steps to take in an emergency
Tr u n kTurn the mechanical key clock-
wise to open.
Changing “ENGINE START STOP” switch modes and starting the engine
Automatic transmissionShift the shift lever to P and apply the brakes.
Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
To change “ENGINE START STOP” switch modes: Within 10
seconds of the buzzer sounding , release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed.
( P. 117)
To start the engine: Press th e “ENGINE START STOP” switch
within 10 seconds after the buzz er sounds, keeping the brake
pedal depressed.
STEP1
STEP2
STEP3

396
5-2. Steps to take in an emergency
Manual transmissionShift the shift lever to N and depress the clutch pedal.
Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
To change “ENGINE START STOP” switch modes: Within 10
seconds of the buzzer sounding, release the clutch pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed.
( P. 117)
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds after the buzz er sounds, keeping the clutch
pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
STEP1
STEP2
■Stopping the engine
For vehicles with an automatic transmission: Shift the shift lever to P and press the
“ENGINE START STOP” switch as you normally do when stopping the engine.
For vehicles with a manual transmission: Shi ft the shift lever to N position and press
the “ENGINE START STOP” switch as you normally do when stopping the engine.
■Replacing the key battery
As the above procedure is the temporary measure, it is recommended that the
electronic key battery be replaced i mmediately when the battery depletes.
(  P. 325)
STEP3

402
5-2. Steps to take in an emergency
If the vehicle becomes stuck
CAUTION
■When attempting to free a stuck vehicle
If you choose to rock the vehicle back and forth to free it, make sure the surround-
ing area is clear, to avoid striking other vehicles, objects or persons. The vehicle
may also lunge forward or lunge back suddenly as it becomes free. Use extreme
caution.
■When shifting the shift lever
With automatic transmission vehicles, be careful not to shift the shift lever with the
accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may cause an
accident and result in death or serious injury.
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt, or snow.
Stop the engine. Set the parking brake and put the selector
lever in P (vehicles with an automatic transmission) or N (vehi-
cles with a manual transmission).
Remove the mud, snow, or sand from around the stuck tire.
Place wood, stones or some ot her material to help provide
traction under the tires.
Restart the engine.
Shift the shift lever to the D or R position (automatic) or 1 or R
position (manual) and carefully apply the accelerator to free
the vehicle.
Turn off TRAC and VSC if these functions are hampering your
attempts to free the vehicle. (  P. 1 7 2 )
STEP1
STEP2
STEP3
STEP4
STEP5

5
When trouble arises
403
5-2. Steps to take in an emergency
NOTICE
■To avoid damaging the transmission and other components
●Avoid spinning the wheels and do not rev the engine.
●If the vehicle remains stuck after trying these procedures, the vehicle may require
towing to be freed.

413
6-1. Specifications
6
Vehicle specifications
Automatic Transmission
*: The fluid capacity is provided as a reference. If replacement is necessary, con-tact your Lexus dealer.
Manual Transmission
Clutch
IS350IS250 (2WD)IS250 (AWD)
Fluid capacity*7. 5 q t .
(7.1 L, 6.2 lmp.qt.)7. 5 q t .
(7.1 L, 6.2 lmp.qt.)9.4 q t .
(8.9 L, 7.8 lmp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
Using automatic transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of your transmission accompanied by vibra-
tion, and ultimately damage the auto matic transmission of your vehicle.
Gear oil capacity1.9 qt. (1.8 L, 1.6 Imp.qt.)
Gear oil typeAPI GL-5
Recommended gear oil viscositySAE75W-90
NOTICE
Using manual transmission gear oil other than “TOYOTA Genuine Manual
Transmission Gear Oil API GL-5” may cause occurrence of gear noise or other dete-
rioration.
Clutch free play0.2  0.6 in. (5  15 mm)
Fluid typeSAE J1703 or FMVSS No.116 DOT 3

414
6-1. Specifications
Brakes
*1: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50kgf) 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

438
6-2. Customization
Door lock
(
P. 3 7 )
Unlocking using a key
Driver's door
unlocked in one
step, all doors
unlocked in two
steps
All doors
unlocked in one step
Speed-detecting auto-
matic door lock function
(Manual transmissions)
OnOff
Speed-detecting auto-
matic door lock function
(Automatic transmissions)
OffOn
Opening driver's door
unlocks all doors (Manual
transmissions)
OnOff
Opening driver's door
unlocks all doors (Auto-
matic transmissions)
OffOn
Shifting gears to P
unlocks all doors.OnOff
Shifting gears to position
other than P locks all
doors.
OnOff
ItemFunctionDefault settingCustomizedsetting

448
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
ABSAnti-Lock Brake System
AFSAdaptive Front-lighting System
AI-SHIFTArtificial Intelligence Shift
ALRAutomatic Locking Retractor
CALCalibration
CRSChild Restraint System
DISPDisplay
ECTElectronic Controlled Transmission
ECUElectronic Control Unit
EDREvent data recorder
ELREmergency Locking Retractor
EPSElectric Power Steering
ETCSElectronic Throttle Control System
GAWRGross Axle Weight Rating
I/MEmission inspection and maintenance
INTIntermittent
MMTMethylcyclopentadienyl Manganese Tricarbonyl
M + SMud and Snow
MTBEMethyl Tertiary Butyl Ether
OBDOn Board Diagnostics
PCSPre-Collision System
SRSSupplemental Restraint System
TINTire Identification Number
TPMSTire Pressure Warning System
TRACTraction Control

450
Alphabetical index
Alphabetical index
A/C ............................................................. 192
ABS.............................................................. 170
AFS .............................................................. 144
Adaptive front lighting system ......... 144
Air conditioning filter .......................... 322
Air conditioning systemAir conditioning filter ....................... 322
Automatic air conditioning system .................................................... 192
Airbags Airbag operating conditions.............81
Airbag precautions for your child.......................................................... 85
Airbag warning light ..........................361
Curtain shield airbag operating
conditions.............................................. 82
Curtain shield airbag precautions .......................................... 85
Front passenger occupant classification system......................... 90
General airbag precautions ........... 85
Locations of airbags............................ 79
Modification and disposal of airbags .................................................... 89
Proper driving po sture ............. 77, 85
Side airbag operating conditions.............................................. 82
Side airbag precautions .................... 85
SRS airbags ............................................. 79 Alarm .............................................................74
Antenna ....................................................208
Anti-lock brake system ........................170
Armrest .................................................... 255
Ashtrays.................................................... 248
Audio input.............................................. 228
Audio system
Antenna.................................................. 208
Audio input ........................................... 228
AUX adapter ...................................... 228
CD player/changer ............................. 211
MP3/WMA disc..................................217
Optimal use ..........................................225
Portable music player ..................... 228
Radio ....................................................... 204
Steering wheel audio switch.........229
Automatic air conditioning system ......................................................192
Automatic headlight leveling system ......................................................145
Automatic light control system.........143
Automatic transmission Automatic transmission ....................122
If the shift lever cannot be shifted from P....................................392
S mode ..................................................... 124
AUX adapter ......................................... 228A

456
Alphabetical index
Keyless entry.............................................. 34
KeysElectronic key ......................................... 20
Engine switch........................................... 117
If you lose your keys......................... 393
If the electronic key does not operate properly ............................ 394
Key number ............................................. 20
Keyless entry ........................................... 34
Keys ............................................................. 20
Mechanical key...................................... 20
Wireless remote control key .......... 34
Light bulbs Replacing ............................................... 342
Wattage.................................................. 420
Lights Door courtesy lights........................... 231
Fog light switch .....................................146
Headlights switch ................................ 143
Interior light switch ............................ 234
Outer foot lights ................................... 231
Overhead courtesy light.................. 231
Personal light switch ........................ 234
Replacing light bulbs........................ 342
Scuff lighting ........................................... 231
Shift lever lighting ................................ 231
Turn signal lever ...................................128
Vanity lights .......................................... 243
Wattage.................................................. 420
Load capacity .......................................... 182 Maintenance
Do-it-yourself maintenance......... 286
General maintenance..................... 282
Maintenance data ............................. 406
Maintenance requirements.......... 280
Manual transmission .............................126
Meter Instrument panel lig ht control ......... 131
Meters ....................................................... 130
Micro dust and pollen filter ................196
Mirrors Inside rear view mirror ...................... 60
Side mirror heater............................. 200
Side mirrors............................................... 61
Vanity mirrors ......................................243
Moon roof................................................... 66
MP3 disc .................................................... 217
Multi-information display ....................139
Odometer ................................................ 130
Oil Engine oil............................................... 295
Opener
Fuel filler door .........................................69
Hood ....................................................... 289
Trunk..............................................................41
Outer foot lights Outer foot lights................................... 231
Wattage ................................................. 420
Outside rear view mirrors Adjusting and folding ........................... 61
Mirror position memory ....................46
Outside temperature display ........... 140
Overhead console ............................... 238K
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