2010 Lexus IS250C engine

Topic 3
When Driving
26
Entering and Exiting
Before DrivingBefore Driving
When DrivingWhen Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing
Yo u r L e x u s
Tu r n S i g n a l L e v e r
Right turn signal
Left turn signal
Emergency Flasher Switch
Engaging the emergency flasher switch causes all
the turn signal lights to flash.
The emergency flashers can be operated even
when the “ENGINE START STOP” switch is OFF.
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2
To signal a lane change, move the lever partway and hold.

Topic 4
Rain and Night Driving
37
Headlight Cleaner (If Equipped)
The headlight cleaner can be used only when the
“ENGINE START STOP” switch is in IGNITION
ON mode and the headlights are on.
Rear Window and Outside Rear View
Mirror Defoggers
To defog the rear window and the outside rear
view mirrors, press the button.
Press again to cancel.

Instrument Panel Light Control
To d i m : turn the dial counterclockwise.
To b r i g h t e n : turn the dial clockwise.
The system turns off automatically after 15 to 60 minutes.
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2

Topic 6
Opening and Closing
84
Entering and Exiting
Before DrivingBefore Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and ClosingOpening and Closing
What to do if ...
Customizing
Yo u r L e x u s
Retractable Hardtop
Opening the retractable hardtop
Press and hold the switch until “COMPLETE” is shown on the display.
Closing the retractable hardtop
Pull up and hold the switch until “COMPLETE” is shown on the display.
Retractable hardtop status display
Warnings, advice and the operational status of the retractable hardtop will be displayed.
■To operate the retractable hardtop
When the following conditions are met, the retractable hardtop can be operated:
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2
3
Operating conditionDetails
The vehicle is stopped—
The trunk lid is closed—
The “ENGINE START STOP” switch is in
IGNITION ON mode(P. 2 0 )
The luggage cover is installed(P. 8 5 )
The trunk opener main switch is on(P.88)
No obstacles are detected by the intuitive
parking assistRefer to the Owner's Manual for details.

What to do if ...
91
If the electronic key does not operate
properly
■Unlocking and locking the doors
To unlock or lock the vehicle, use the mechanical
key to remove the lock cover on the driver's door
handle. The mechanical key is stored inside the
electronic key.
Unlocks
Locks
■Starting the engine
Depress the brake pedal (for automatic trans-
mission) or clutch pedal (for manual transmis-
sion).
Touch the Lexus emblem side of the electronic
key to the “ENGINE START STOP” switch.
Press the “ENGINE START STOP” switch
within 10 seconds of the buzzer, keeping the
brake pedal (for automatic transmission) or
clutch pedal (for manual transmission)
depressed.
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2
If the electronic key battery becomes depleted, replace it with a new battery. For instruc-
tions on replacing the battery, refer to the Owner's Manual. If you need further assistance,
contact your Lexus dealer.

92
Entering and Exiting
Before Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing
Yo u r L e x u s
If the engine doesn't start
Make sure that the correct operating procedures have been followed.
Automatic transmission
Make sure that the brake pedal (for automatic
transmission) or clutch pedal (for manual trans-
mission) is firmly depressed when attempting to
start the engine. (P.1 9 )
Manual transmission
Make sure that the steering wheel lock is released.
To release the steering wheel lock, gently turn the
wheel left or right while pressing the “ENGINE
START STOP” switch. (P.1 1 )
Brake/clutch pedal
Steering wheel lock
If the engine still does not start, see the Owner's Manual for more information or contact
your Lexus dealer.

What to do if ...
93
Electronic Key Alarm
The electronic key alarm uses an alarm and warning messages to indicate that the electronic
key has been used improperly. Take appropriate measure in response to any warning mes-
sages that are displayed. In some cases, an alarm may sound without an accompanying
warning message. If so, follow the correction procedure in the table below.
*: Vehicles with automatic transmission only
AlarmSituationCorrection procedure
Exterior alarm sounds
once for 2 seconds
Tried to lock the doors
using the entry function
while the electronic key is
still inside the passenger
compartmentRetrieve the electronic key
from the passenger com-
partment and lock the
doors again.
Closed the trunk while the
electronic key is still inside
and both side doors are
lockedRetrieve the electronic key
from the trunk and close
the trunk lid.
Exterior alarm sounds
once for 60 seconds
Tried to exit the vehicle
with the electronic key and
lock the doors without first
turning the “ENGINE
START STOP” switch OFF
Turn the “ENGINE START
STOP” switch OFF and
lock the doors again.
Exterior alarm sounds
once for 10 secondsTried to lock the vehicle
using the entry function
while a door is openClose both side doors and
lock the doors again.
Interior alarm sounds
continuously*Tried to open the door and
exit the vehicle without
shifting the shift lever to P
Shift the shift lever to P.
Interior alarm pings
continuously
Switched to ACCES-
SORY mode while the
driver's door is open
(Opened the driver's door
when the “ENGINE
START STOP” switch is in
ACCESSORY mode.)
Close the driver's door.
Tu r n e d t h e “ E N G I N E
START STOP” switch OFF
while the driver's door is
still open
Close the driver's door.

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Entering and Exiting
Before Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing
Yo u r L e x u s
ItemFunctionDefault
settingCustomized
setting
Retractable
hardtopRetractable hardtop operation
control linked to the intuitive
parking assist
OnOff
Automatic light
control system
Light sensor sensitivityLevel 3Level 1 to 5
Time elapsed before headlights
automatically turn off after
doors are closed
30 seconds
0 seconds
60 seconds
90 seconds
LightsDaytime running light system
(U.S.A. only)OnOff
Windshield
wipers and
washer
Switching operation when the
vehicle is stationaryOnOff
Drip prevention functionOnOff
Time elapsed before the drip
prevention function operates
Va r i a b l e
depending on
the vehicle
speed
3 seconds
Intuitive parking
assist
Back sensor operation display
and buzzerOnOff
Buzzer volumeLevel 3Level 1 to 5
Distance which a sensor detects4.9 ft. (150 cm)2.0 ft. (60 cm)
Illumination
Time elapsed before lights turn
off15 seconds7. 5 s e c o n d s
30 seconds
Operation when the doors are
unlockedOnOff
Operation after the “ENGINE
START STOP” switch turned
OFF
OnOff
Front foot well lightsOnOff
Shift lever lightOnOff
Outer foot lightsOnOff