2016 LEXUS IS250 engine

Topic 3
When Driving
19
IS_U (L/O_0808)
Engine (ignition) Switch
nStarting 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.
nStopping 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.)

Topic 3
When Driving
20

Entering and Exiting
Before Driving
Before Driving
When 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
IS_U (L/O_0808)
nChanging 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)
nShift positions
PPa rk *
RReverse
NNeutral (drive not engaged)
DDrive
SS mode
*: The engine can only be started in P.
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.
ACCE SSORY modeIGNITION ON mode
(Indicator light: amber)
OFF
(Indicator light: off)

Topic 3
When Driving
26

Entering and Exiting
Before Driving
Before Driving
When 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
IS_U (L/O_0808)
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.
1
2
To signal a lane change, move the lever partway and hold.

Topic 4
Rain and Night Driving
37
IS_U (L/O_0808)
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 minutes.
1
2

60

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
IS_U (L/O_0808)
If the electronic key does not operate
properly
nUnlocking 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
nStarting 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 battery, refer to the Owner's Manual. If you need further assistance,
contact your Lexus dealer.

What to do if ...
61
IS_U (L/O_0808)
If the engine doesn't start
Make sure that the correct operating procedures have been followed.
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 )
Automatic transmission
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.9 )
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.

62

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
IS_U (L/O_0808)
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
compartment
Retrieve the electronic key
from the passenger com-
partment and lock the
doors again.
Closed the trunk while the
electronic key is still inside
and all doors are locked
Retrieve 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 seconds
Tried to lock the vehicle
using the entry function
while a door is open
Close all of the 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.

65
Customizing Your Lexus
IS_U (L/O_0808)
ItemFunctionDefault
setting
Customized
setting
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 lightOnOff
Seat belt
reminder
Vehicle speed linked seat belt
reminder buzzerOnOff