LEXUS IS250C 2013 Owners Manual

5
When trouble arises
501
5-2. Steps to take in an emergency
Have the vehicle inspected by your Lexus dealer immediately.A buzzer sounds and a message is show n. Failure to investigate the cause
of the following messages may lead to the system operating abnormally
and possibly cause an accident. Have the vehicle inspected by your
Lexus dealer immediately.
MessageDetails
(Flashing)
Indicates a malfunction in the steering lock system.
(If equipped)
Indicates a malfunction in the headlight leveling sys-
tem.
(If equipped)
Indicates a malfunction in the pre-collision system.

502
5-2. Steps to take in an emergency
(If equipped)
Indicates intuitive parking assist malfunction.The malfunctioning assist-sensor is shown flashing on
the display.
(Flashing)
(If equipped)
Indicates a malfunction in the radar cruise control
system. Press the “ON-OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
Indicates a malfunction in the retractable hardtop
system.
MessageDetails

5
When trouble arises
503
5-2. Steps to take in an emergency
Follow the correction procedures.A buzzer sounds and a message is shown. After taking the specified
steps to correct the suspected proble m, check that the message goes off.
MessageDetailsCorrection procedure
Indicates that one or
more of the doors is not
fully closed.
The system also indi-
cates which doors are
not fully closed.
flashes and a
buzzer sounds to indi-
cate that one or more of
the doors is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
Make sure that all of the
doors are closed.
Indicates that the hood is
not fully closed.
flashes and a
buzzer sounds to indi-
cate that hood is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
Close the hood.

504
5-2. Steps to take in an emergency
Indicates that the trunk is
not fully closed. flashes and a
buzzer sounds to indi-
cate that trunk is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
Close the trunk.
The vehicle was driven
with the retractable hard-
top partially open.
When the vehicle speed
exceeds 1.6 mph
(3 km/h), flashes
and a buzzer will sound.
Stop the vehicle in a safe
place and open or close
the retractable hardtop
completely. ( P. 8 6 )
(Flashing)
The “ENGINE START
STOP” switch was turned
off while the retractable
hardtop was partially
open.
Open or close the retract-
able hardtop completely.
( P. 8 6 )
MessageDetailsCorrection procedure

5
When trouble arises
505
5-2. Steps to take in an emergency
•The roof switch was operated when there
was an obstacle behind
the vehicle.
• Operation of the retractable hardtop was
suspended due to an
obstacle being detected
behind the vehicle.
When the roof switch is
pressed again within two
seconds of message
being displayed, message will be displayed.
( P. 8 6 )
The roof switch was
pressed while the trunk lid
was open.
Close the trunk lid.
The roof switch was
pressed while the trunk lid
opener main switch was
turned off.
Turn the trunk lid opener
main switch on. ( P. 5 1 )
The roof switch was
pressed while the vehicle
was moving.
( P. 8 6 )
The roof switch was
pressed while there was
not enough power.
Start the engine
MessageDetailsCorrection procedure

506
5-2. Steps to take in an emergency
The roof switch was
pressed while the lug-
gage cover was not in the
correct position.
( P. 8 6 )
Indicates that the parking
brake is still engaged.
flashes and a
buzzer sounds to indi-
cate that the parking
brake is still engaged
(with the vehicle having
reached a speed of 3
mph [5 km/h]).
Release the parking
brake.
Indicates that the washer
fluid level is low.Add washer fluid.
Indicates that engine oil
level is low.Check the level of engine
oil, and add if necessary.
MessageDetailsCorrection procedure

5
When trouble arises
507
5-2. Steps to take in an emergency
(U.S.A. only)
Indicates that all mainte-
nance according to the
driven distance on the
maintenance schedule*
should be performed
soon.
If necessary, perform
maintenance.
Comes on approximately
4500 miles (7200 km)
after the maintenance
data has been reset.
(U.S.A. only)
Indicates that all mainte-
nance is required to cor-
respond to the driven
distance on the mainte-
nance schedule*.
Perform the necessary
maintenance. Please reset
the maintenance data
after the maintenance is
performed (P. 4 0 5 )
Comes on approximately
5000 miles (8000 km)
after the maintenance
data has been reset.
(The indicator will not
work properly unless the
maintenance data has
been reset.)
(Flashing)
(If equipped)
Indicates that the pre-
collision system is not
currently functional.• Clean the grille and the sensor.
• Wait until the pre-colli- sion system cools down.
MessageDetailsCorrection procedure

508
5-2. Steps to take in an emergency
(If equipped)
Indicates that intuitive
parking assist is dirty or
covered with ice.
Clean the sensor.
(Flashing)
(If equipped)
Indicates that the radar
cruise control sensor is
dirty or covered with ice.
Clean the sensor.
(Flashing and then con- tinuously on)
(Flashing)
(If equipped)Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance.
• Switch the driving mode to either the normal or
power mode.
• If the windshield wipers are on, turn them off or
set them to either the
intermittent or the slow
mode.
(Flashing)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in radar cruise
mode).
Slow the vehicle by apply-
ing the brakes.
MessageDetailsCorrection procedure

5
When trouble arises
509
5-2. Steps to take in an emergency
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supple-ment” for the maintenance interval applicable to your vehicle.
(Flashing
quickly)
(If equipped)
Indicates that there is a
high possibility of a fron-
tal collision, or that the
pre-collision braking
function is operating.
Slow the vehicle by apply-
ing the brakes.
■Warning light display in dynamic radar cruise mode (if equipped)
In the following cases, the warning light may not be displayed even if vehicle-to-
vehicle distance closes.
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
MessageDetailsCorrection procedure

510
5-2. Steps to take in an emergency
Follow the correction procedures.After taking the specified steps to co rrect the suspected problem, check
that the warning light turns off.
Interior
buzzerExterior buzzerMessageDetailsCorrection
procedure
Once
(Comes on for 10 seconds.)
(Flashing)
Indicates that an
attempt was made
to start the engine
without the elec-
tronic key being
present, or the
electronic key was
not functioning
normally.
Start the engine
with the elec-
tronic key
present.
*
Once3 times
(Flashing)
Indicates that a
door other than
the driver’s door
has been opened
or closed with the
“ENGINE START
STOP” switch in
any mode other
than OFF and the
electronic key
outside of the
detection area.
Confirm the loca-
tion of the elec-
tronic key.