Page 499 of 586
498
5-2. Steps to take in an emergency
10_IS250C/350C_U
Emergency start function
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the “ENGINE START STOP” switch
is functioning normally.Vehicles with an automatic transmission Set the parking brake.
Put the shift lever in P.
Set the “ENGINE START STOP” switch to ACCESSORY mode.
Press and hold the “ENGINE START STOP” switch about 15 sec-
onds while depressing the brake pedal firmly.
Vehicles with a manual transmission Set the parking brake.
Put the shift lever in N.
Set the “ENGINE START STOP” switch to the ACCESSORY
mode.
Push and hold the “ENGINE START STOP” switch about 15 sec-
onds while depressing the brake pedal and clutch pedal firmly.
Even if the engine can be started using the above steps, the system may
be malfunctioning. Have the vehicle checked by your Lexus dealer.
STEP1
STEP2
STEP3
STEP4
STEP1
STEP2
STEP3
STEP4
Page 505 of 586
504
5-2. Steps to take in an emergency
10_IS250C/350C_UManual transmission
Shift 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 ST OP” 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. 142)
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds after the buzzer sounds, keeping the clutch
pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
STEP1
STEP2
STEP3
Page 506 of 586
5
When trouble arises
505
5-2. Steps to take in an emergency
10_IS250C/350C_U
■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: Shift 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 a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery depletes. (→P. 4 2 5 )
Page 513 of 586

512
5-2. Steps to take in an emergency
10_IS250C/350C_U
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 shift the shift lever
in P (vehicles with an automatic transmission) or N (vehicles
with a manual transmission).
Remove the mud, snow, or sand from around the stuck tire.
Place wood, stones or some other material to help provide
traction under the tires.
Restart the engine.
Shift the shift lever to the D or R position (vehicles with an auto-
matic transmission) or 1 or R position (vehicles with a manual
transmission) 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. 2 0 6 )
STEP1
STEP2
STEP3
STEP4
STEP5
Page 535 of 586
534
6-1. Specifications
10_IS250C/350C_U
Manual Transmission
Clutch
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 deterioration.
Clutch free play0.2 0.6 in. (5 15 mm)
Fluid typeSAE J1703 or FMVSS No.116 DOT 3
Page 536 of 586
535
6-1. Specifications
6
Vehicle specifications
10_IS250C/350C_U
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 350C
IS 250C
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
Pe d a l t y p e
Lever type7 9 clicks
5
7 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3
Page 560 of 586
559
6-2. Customization
6
Vehicle specifications
10_IS250C/350C_U
Door lock
(
→P. 4 3 )
Unlocking using a key
Driver's door
unlocked in one
step, both side
doors unlocked
in two steps
Both side 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 both side doors
(Manual transmissions)
OnOff
Opening driver's door
unlocks both side doors
(Automatic transmissions)
OffOn
Shifting gears to P
unlocks both side doorsOnOff
Shifting gears to position
other than P locks both
side doors
OnOff
Steering
wheel
(
→P. 7 2 )
Auto tilt-away functionOnOff
ItemFunctionDefault settingCustomizedsetting
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577
Alphabetical index
10_IS250C/350C_U
Light bulbsReplacing............................................... 444
Wattage ................................................... 541
Lights
Door courtesy lights ........................338
Emergency flasher switch ............. 452
Fog light switch..................................... 176
Hazard light switch........................... 452
Headlights switch ................................ 173
Interior light switch............................ 339
Outer foot lights................................. 338
Personal light switch ........................ 339
Replacing light bulbs ....................... 444
Scuff lights ............................................. 338
Shift lever light ..................................... 338
Turn signal lever...................................156
Vanity lights ...........................................347
Wattage ................................................... 541
Load capacity .......................................... 219
Maintenance Do-it-yourself maintenance .........386
General maintenance ..................... 382
Maintenance data ............................. 526
Maintenance requirements ..........380
Manual transmission............................. 154
Meter Instrument panel light control .......160
Meters .......................................................159
Micro dust and pollen filter ...............234 Mirrors
Inside rear view mirror ....................... 74
Side mirror heater .............................238
Side mirrors ............................................. 75
Vanity mirrors ...................................... 347
MP3 disc .................................................. 257
Multi-information display ................... 168
Noise from under vehicle...................... 19
Odometer................................................. 159
Oil
Engine oil............................................... 395
Opener
Fuel filler door .........................................90
Hood ....................................................... 389
Trunk ........................................................... 47
Outer foot lights
Outer foot lights ................................ 338
Wattage ................................................... 541
Outside rear view mirrors Adjusting and folding.......................... 75
Mirror position memory ....................56
Outside temperature display ........... 169
Overheating, Engine.......................... 509L
M
N
O