engine Lexus IS250C 2010 Do-It-Yourself Maintenance / LEXUS 2010 IS350C/IS250C OWNERS MANUAL QUICK GUIDE (OM53836U)

Contents
The Quick Guide is not intended as a substitute for your Owner’s
Manual. We strongly encourage you to review the Owner’s
Manual and supplementary manual s so you will have a better
understanding of your vehicle’ s capabilities and limitations.
1
Air Conditioning System (with navigation system)
Using the automatic mode ....................................................................................................... .50
Adjusting the temperature ...................................................................................................... .. 50
To turn off the airflow ........................................................................................................ ........... 50
Air Conditioning System (without navigation system)
Using the automatic mode ....................................................................................................... .63
Adjusting the temperature ...................................................................................................... .. 63
To turn off the airflow ........................................................................................................ ........... 63
Audio System (with navigation system)
Basic operation ................................................................................................................ .............. 46
Radio.......................................................................................................................... ......................... 46
DVD player/CD player........................................................................................................... ....47
Operating an iPod
®.................................................................................................................... 49
Remote control (steering wheel switches) ......................................................................... 49
Audio System (without navigation system)
Basic operation ................................................................................................................ .............. 57
Radio.......................................................................................................................... ......................... 58
CD player ......................................................................................................................................... 59
Operating an iPod
®.................................................................................................................... 62
Remote control (steering wheel switches) ......................................................................... 62
Automatic Transmission ......................................................................................................... ............15
Cruise Control................................................................................................................. ......................22
Door Locks..................................................................................................................... .........................74
Dynamic Radar Cruise Control ............................ ........................................................................23
ECT Switch (Automatic Transmission) ...................................................................................... 20
Engine (ignition) Switch ....................................................................................................... ............... 14
ETCS Switch (Manual Transmission)............................................................................................ 21
Fog Lights..................................................................................................................... ........................... 26
Fuel Tank Cap .................................................................................................................. ...................... 77
Hands-free System For Cellular Phone (with navigation system) Bluetooth
® phone pairing......................................................................................................... 38
Phonebook transfer ..................................................................................................................... 39
Registering a voice tag ........................................................................................................ ....... 40
Registering a speed dial ....................................................................................................... ........ 41
Calling by name ............................................................................................................................. 42
Calling by speed dial.......................................................................................................... .......... 43
Receiving a call............................................................................................................... ................ 44
XM
® NavWeather .................................................................................................................... .. 45

4
Shift paddle switch (automatic
transmission)
P.16
Windshield wipers and
washer switch
P.27
Engine (ignition) switch P.14
Trunk opener main switch P.78
ECT switch (automatic transmission)
ETCS switch (manual transmission)P.20
P.21
Shift lever P.15, 17

9
Smart Access System with Push-button Start
■Entering the vehicle
To unlock the vehicle, simply grasp either of the
door handles.
■Exiting the vehicle
To lock the vehicle, press the lock button on either
of the door handles.
■Opening the trunk
To open the trunk, press and hold the trunk
release button.
The smart access system with push-button start allows you to enter and exit the vehicle
or start the engine by simply carrying th e electronic key in your pocket or bag.
For details on starting the engine, see page 14.
For details on what to do when the electronic key does not operate properly, see page 81.

10
Theft Deterrent System
■Engine immobilizer system
The engine immobilizer system prevents the
engine from being started in the event that an
attempt is made to start the vehicle using an
unregistered key.
The security indicator ligh t flashes to indicate that
the system is set.
■ Alarm
The system sounds the alarm and flashes lights when forcible entry is detected.
To set the alarm: lock both side doors from outside the vehicle. The security indicator light
comes on to indicate that the alarm is in its preparation state. When the indicator light
begins to flash, the system is armed.
To deactivate or stop the alarm: turn the “ENGINE START STOP” switch to ACCESSORY
or IGNITION ON mode, or unlock the doors or trunk using the electronic key or the wire-
less remote control.
■ Steering lock
The steering wheel locks when the “ENGINE
START STOP” switch is OFF and the driver’s door
is opened.
When the steering lock cannot be released, the
green indicator light on the “ENGINE START
STOP” switch will flash and a message will be
shown on the multi-information display. To release
it, gently turn the wheel left or right while pressing
the “ENGINE START STOP” switch.
The theft deterrent system includes the followi ng features to help protect your vehicle from
theft.

14
Engine (ignition) Switch
■Starting the engine
Automatic transmission
Make sure the parking brake is engaged and the
shift lever is in P.
Depress the brake pedal.The “ENGINE START STOP” switch indi-
cator light turns green.
Press the “ENGINE START STOP” switch.
Manual transmission
Make sure the parking brake is engaged and the
shift lever is in N.
Depress the clutch pedal.The “ENGINE START STOP” switch indi-
cator light turns green.
Press the “ENGINE START STOP” switch.
■ Stopping the engine
Engage the parking brake and shift the shift lever to P (for automatic transmission) or N
(for manual transmission).
Press the “ENGINE START STOP” switch.
With the electronic key on your person, the engine can be started by simply pressing the
“ENGINE START STOP” switch, while depressing the brake pedal or clutch pedal.
(The mechanical key cannot be used to start the engine.)

15
■Changing power modes
To change power modes without turning on the engine, press the “ENGINE START STOP”
switch without depressing the brake pedal (for automatic transmission) or the clutch pedal
(for manual transmission). The modes can be changed in the following order:
Automatic Transmission (If Equipped)
■ Shift positions
ACCE SSORY mode IGNITION ON mode
(Indicator light: amber)
OFF
(Indicator light: off)
P Pa r k *
The vehicle can only be shifted out of P when
the “ENGINE START STOP” switch is in
IGNITION ON mode and the brake pedal is
depressed.
R
Reverse
N Neutral (drive not engaged)
D Drive
S S mode
*: The engine can only be started in P.

75
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 “C OMPLETE” is shown on the display.
Retractable hardtop status display
Warnings, advice and the operat ional 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:
1
2
3
Operating conditionDetails
The vehicle is stopped—
The trunk lid is closed—
The “ENGINE START STOP” switch is in
IGNITION ON mode( P.1 5 )
The luggage cover is installed( P. 76 )
The trunk opener main switch is on( P. 7 8 )
No obstacles are detect ed by the intuitive
parking assistRefer to the Owner's Manual for details.

What to do if ...
81
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.
1
2
If the electronic key battery becomes depleted , replace it with a new battery. For instruc-
tions on replacing the ba ttery, refer to the Owner's Manual. If you need further assistance,
contact your Lexus dealer.

82
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 4 )
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 0 )
Brake/clutch pedal
Steering wheel lock
If the engine still does not st art, see the Owner's Manual fo r more information or contact
your Lexus dealer.

What to do if ...
83
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.