ECO mode Lexus IS F 2012 Specifications / 2012 ISF OWNERS MANUAL QUICK GUIDE (OM53A51U)

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Dynamic Radar Cruise Control (If Equipped)
■Cruise control display
Cruise control settings are shown on the multi-
information display.
Vehicle ahead indicator
Vehicle-to-vehicle distance
Preset speed
■Vehicle-to-vehicle distance control mode
Press the “ON-OFF” button.
Accelerate or decelerate to the desired
speed, and then push the lever down.
Vehicle-to-vehicle distance can be adjusted using
the distance switch.
■ Constant speed control mode
Press the “ON-OFF” button.
Push the lever forward and hold for at least
one second.
Accelerate or decelerate to the desired
speed, and then push the lever down.
■Canceling
To temporarily cancel the dynamic radar
cruise control, pull the lever toward you. To
resume the cruise control, push the lever up.
To turn the system off, press the “ON-OFF”
button.
■Adjusting the speed setting
To increase speed : push the lever up.
To d e c r e a s e s p e e d : push the lever down.
Release the lever when the desired speed is
reached.
Dynamic radar cruise control su pplements conventional cruise control with a vehicle-to-
vehicle distance control mode.
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The vehicle-to-vehicle distance control mode maintains the preset cruising speed as long
as no vehicle is detected ahead.

What to do if ...
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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 ke y is stored inside the
electronic key.
Unlocks
Locks
■Starting the engine
Depress the brake pedal.
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 depressed.
To change “ENGINE START STOP” switch
modes, release the brake pedal and press the
“ENGINE START STOP” switch within 10 sec-
onds of the buzzer.
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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.

What to do if ...
73
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 measures 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.
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 secondsTried 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
continuouslyTried 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
open.
Close the driver's door.