ignition Lexus IS250C 2010 Owner's Manual

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10_IS250C/350C_U
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2-1. Driving proceduresDriving the vehicle ........................ 132
Engine (ignition) switch .............. 142
Automatic transmission.............. 147
Manual transmission .................... 154
Turn signal lever ............................ 156
Parking brake ................................. 157
Horn.................................................... 158
2-2. Instrument cluster Gauges and meters ..................... 159
Indicators and warning lights ... 165
Multi-information display........... 168
2-3. Operating the lights and windshield wipers
Headlight switch ............................ 173
Fog light switch .............................. 176
Windshield wipers and washer.............................................. 177
Headlight cleaner switch ........... 182 2-4. Using other driving systems
Cruise control ................................ 183
Dynamic radar cruise control............................................. 187
Intuitive parking assist ................. 198
Driving assist systems................. 204
Hill-start assist control ................ 210
PCS (Pre-Collision System)..... 212
2-5. Driving information Cargo and luggage ...................... 216
Vehicle load limits......................... 219
Winter driving tips ....................... 220
Trailer towing ................................. 224
Dinghy towing (vehicles with an
automatic transmission) ......... 225
Dinghy towing (vehicles with a
manual transmission)............... 226
2When driving

10_IS250C/350C_U
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Pictorial indexInstrument panel
Headlight switch Turn signal lever
Fog light switch P. 173
P. 156
P. 176
Shift paddle switches (automatic transmission) P. 151
Gauges and meters P. 159
Multi-information display P. 168
Windshield wiper and washer switch P. 177
Engine (ignition) switch P. 142
Trunk opener main switch P. 47
Tilt and telescopic steering control switch P. 72
Audio remote control switches *2P. 286
Horn P. 158Glove box P. 340
Parking brake pedal (automatic transmission) P. 157
Hood lock release lever P. 389
Inside door lock buttons P. 43

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1-2. Opening, closing and locking the doors and trunk
10_IS250C/350C_U
Locking the doors from the outside without a key
The door cannot be locked if the “ENGINE START STOP” switch is in
ACCESSORY or IGNITION ON mode, or the electronic key is left
inside the vehicle.
Depending on the position of the electronic key, the key may not be detected
correctly and the door may be locked.
Automatic door locking and unlocking systems
The following functions can be set or cancelled:
*: Vehicles with an automatic transmission only
FunctionOperation
Shift position linked door
locking function
*
Shifting the shift lever out of P when the engine
is running locks both side doors.
Shift position linked door
unlocking function
*
Shifting the shift lever to P when the “ENGINE
START STOP” switch is in IGNITION ON
mode unlocks both side doors.
Speed linked door locking
functionBoth side doors are locked when the vehicle
speed is approximately 12 mph (20 km/h) or
higher.
Driver's door linked door
unlocking functionBoth side doors are unlocked when the driver's
door is opened within 10 seconds after turning the
“ENGINE START STOP” switch OFF.

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1-2. Opening, closing and locking the doors and trunk
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Before driving
10_IS250C/350C_U■
Setting and canceling the functions
To switch between setting and canceling, follow the procedure below:
Close both side doors and switch the “ENGINE START STOP”
switch to IGNITION ON mode. (Perform the step 2 within 20
seconds.) Shift the shift lever to P or N, press
and hold the driver's door lock
switch ( or ) for about
5 seconds then release.
The shift lever and switch positions
corresponding to the desired func-
tion to be set are shown as follows.
Use the same procedure to cancel
the function.
*: Vehicles with an automatic transmission only
When the setting or canceling operation is complete, both side doors are
locked and then unlocked.
STEP1
STEP2
FunctionShift lever positionDriver’s door lock switch position
Shift position linked door locking
function*
PShift position linked door unlock-
ing function*
Speed linked door locking function
NDriver's door linked door unlocking
function

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1-3. Adjustable components (seats, mirrors, steering wheel)
10_IS250C/350C_U
Driving position memory (driver’s seat)∗
Your preferred driving position (the position of the driver's seat, steering
wheel and outside rear view mirrors) can be memorized and recalled with
the touch of a button. It is also possible to set this function to activate auto-
matically when the doors are unlocked.
Three different driving positions can be entered into memory.
■ Entering a position to memory
Switch to IGNITION ON mode.
Adjust the driver’s seat, steering wheel, and outside rear view
mirrors to the desired positions.
Push the “SET” button, then
within 3 seconds push button
“1”, “2” or “3” until the signal
beeps.
If the selected button has
already been preset, the previ-
ously recorded position will be
overwritten.
■Recalling the memorized position
Vehicles with an automatic transmission: Check that the shift lever is
set in P.
Vehicles with a manual transmission: Check that the parking brake is
set.
Switch to IGNITION ON mode.
STEP1
STEP2
STEP3
STEP1
∗: If equipped

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1-3. Adjustable components (seats, mirrors, steering wheel)
10_IS250C/350C_U
Seat position memory (front passenger’s seat)∗
Your preferred front passenger seat position can be memorized and
recalled with the touch of a button.
Three different seat positions can be entered into memory.
■ Entering a position to memory
Switch to IGNITION ON mode.
Adjust the front passenger seat to the desired position.
Push the “SET” button, then
within 3 seconds push button
“1”, “2” or “3” until the signal
beeps.
If the selected button has
already been preset, the previ-
ously recorded position will be
overwritten.
■Recalling the memorized position
Vehicles with an automatic transmission: Check that the shift lever is
set in P.
Vehicles with a manual transmission: Check that the parking brake is
set.
Push button “1”, “2” or “3” to
recall the memorized position.
STEP1
STEP2
STEP3
∗: If equipped

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1-3. Adjustable components (seats, mirrors, steering wheel)
10_IS250C/350C_U
Steering wheel
Auto tilt awayWhen the “ENGINE START
STOP” switch is turned OFF, the
steering wheel returns to its
stowed position by moving up and
away to enable easier driver entry
and exit.
Switching to ACCESSORY or
IGNITION ON mode will return
the steering wheel to the original
position.
The steering wheel can be adjusted to a comfortable position.
Up
Down
Away from the driver
Toward the driver

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1-3. Adjustable components (seats, mirrors, steering wheel)
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Before driving
10_IS250C/350C_U
■The steering wheel can be adjusted when
The “ENGINE START STOP” switch is in ACCESSORY or IGNITION ON mode.
■Automatic adjustment of the steering position (vehicles with driving position
memory)
A desired steering position can be entered to memory and recalled automatically
by the driving position memory. (→P. 5 6 )
■Customization that can be configured at Lexus dealer
It is possible to deactivate the auto tilt-away function.
(Customizable features →P. 5 5 7 )
CAUTION
■Caution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and an accident, resulting in
death or serious injury.

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1-3. Adjustable components (seats, mirrors, steering wheel)
10_IS250C/350C_U
Anti-glare inside rear view mirror
■To prevent sensor error
CAUTION
■Caution while driving
Do not adjust the position of the mirror while driving.
Doing so may lead to mishandling of the vehicle and an accident, resulting in death
or serious injury.
In automatic mode, sensors are used to detect the headlights of vehicles
behind and automatically reduce the reflected light.
Turns automatic mode on/off
The indicator comes on when
automatic mode is turned on.
The anti-glare mirror default
mode is automatic. The anti-
glare mirror is automatically set
to automatic whenever the
“ENGINE START STOP” switch
is turned to IGNITION ON
mode.
To ensure that the sensors operate properly,
do not touch or cover them.

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1-3. Adjustable components (seats, mirrors, steering wheel)
Before driving
10_IS250C/350C_U
Outside rear view mirrors
■The mirrors can be adjusted when
The “ENGINE START STOP” switch is in ACCESSORY or IGNITION ON mode.
■When the mirrors are fogged up
Turn on the mirror defoggers to defog the mirrors. (→P. 2 3 8 )
■Folding back the mirrors
■One-touch adjustment of the mirror angle
(vehicles with driving position memory)
A desired mirror face angle can be entered to memory and adjusted automatically
by the driving position memory. (→P. 5 6 )
Mirror angle can be adjusted using the switch.
Select a mirror to adjust
(“L”: left or “R”: right)
Adjust the mirror up, down,
in, or out using the switch
Push back in the direction of the vehicle's
rear.