Lexus HS250h 2010 Owner's Manual

5
When trouble arises
509
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
(Flashes)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in radar cruise
mode)
A buzzer also sounds.
At the same time,
will appear on
the head-up display (the
image flashes).
Slow the vehicle by apply-
ing the brakes.
(Flashes)
(If equipped)
Indicates a malfunction in
the LKA system A buzzer also sounds.Restart the hybrid system
and then reactivate the
lane keeping assist system.
Indicates that the LKA is
suspendedA buzzer also sounds.
•The camera sensor temperature is higher
than the operation tem-
perature range.
• The power steering
system operation is
restricted.
Reactivate the lane keep-
ing assist system.
Wa r n i n g m e s s a g eDetailsCorrection procedure

510
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
Alerts the driver that the
vehicle is out of the lanes
(while the LKA system is
operating).A buzzer also sounds.
The lane markings and/
or the steering wheel
marking flash.
At the same time,
will appear on
the head-up display (the
image flashes).
Check the road condi-
tions and drive the vehicle
at a safe speed.
Indicates that the hybrid
system has overheated A buzzer also sounds.Stop and check.
(→ P. 5 4 1 )
(Flashes)
Indicates that the traction
battery is low
The warning buzzer
sounds intermittently.
When stopping the vehi-
cle for a long period of
time, change the shift
position to P. The battery
cannot be charged with
the shift position in N.
(Flashes)
Indicates that the traction
battery power has
dropped because a long
period of time has
elapsed after changing
the shift position to NThe warning buzzer
sounds continuously.
Restart the hybrid system
when starting the vehicle.
Wa r n i n g m e s s a g eDetailsCorrection procedure

5
When trouble arises
511
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
(Flashes)
Indicates that the driver’s
door was opened with the
shift position in any posi-
tion other than P with the
hybrid system operatingThe warning buzzer
sounds continuously.
Change the shift position
to P.
Indicates that the EV
drive mode is not avail-
able*A buzzer also sounds.
The reason the EV drive
mode is not available
(the vehicle is idling, bat-
tery charge is low, speed
is higher than the EV
drive mode operating
speed range, accelera-
tor pedal is depressed
too much) may be dis-
played.
Use the EV drive mode
when it becomes avail-
able.
Wa r n i n g m e s s a g eDetailsCorrection procedure

512
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)*: For the EV drive mode operating conditions (
→P. 1 5 0 ) .
(Flashes 3
times)
Indicates that the EV
drive mode has been
automatically cancelled* A buzzer also sounds.
The reason the EV drive
mode is not available
(the battery charge is
low, speed is higher than
the EV drive mode
speed range, accelera-
tor pedal is depressed
too much) may be dis-
played.
Drive the vehicle for a
while.
Wa r n i n g m e s s a g eDetailsCorrection procedure

5
When trouble arises
513
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
Have the malfunction repaired immediatelyAfter taking the specified steps to co rrect the suspected problem, check
that the warning message and light go off.
Interior
buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
Once
(Flashes)
The electronic key
is not detected
when an attempt
is made to start
the hybrid system.Start the hybrid
system with the
electronic key
present.
Once3 times
(Flashes)
The electronic key
was carried out-
side the vehicle
and a door other
than the driver's
door was opened
and closed while
the “POWER”
switch was in a
mode other than
off.
Bring the elec-
tronic key back
into the vehicle.
The electronic key
was carried out-
side the vehicle
and the driver’s
door was opened
and closed while
the shift position P
was selected with-
out turning off the
“POWER” switch.
Tu r n t h e
“POWER” switch
off or bring the
electronic key
back into the vehi-
cle.

514
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
OnceCon-
tinuous
(Displayed alternately)(Flashes)
An attempt was
made to exit the
vehicle with the
electronic key and
lock the doors
without first turn-
ing the “POWER”
switch off.
Tu r n t h e
“POWER” switch
off and lock the
doors again.
Once
(Flashes)
An attempt was
made to start the
hybrid system
without the elec-
tronic key being
present, or the
electronic key was
not functioning
normally.
An attempt was
made to drive
when the regular
key was not inside
the vehicle.
Confirm that the
electronic key is
inside the vehicle.
Con-
tinuous
(Flashes)
The driver’s door
was opened while
any shift position
other than P was
selected without
turning off the
“POWER” switch.
Change the shift
position to P.
Interior buzzerExterior buzzerWarning messageDetailsCorrection
procedure

5
When trouble arises
515
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
Con-
tinuousCon-
tinuous
(Displayed alternately)(Flashes)
The electronic key
was carried out-
side the vehicle
and the driver’s
door was opened
and closed while
any shift position
other than P was
selected without
turning off the
“POWER” switch.
•Change the shift position to P.
• Bring the elec-
tronic key back
into the vehicle.
OnceCon-
tinuous
(Flashes)
An attempt was
made to lock the
doors using the
smart access sys-
tem with push-
button start while
the electronic key
was still inside the
vehicle.
Retrieve the elec-
tronic key from
the vehicle and
lock the doors
again.
Interior buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure

516
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
Con-
tinuous
(Flashes)
An attempt was
made to lock
either front door
by opening a door
and putting the
inside lock button
into the lock posi-
tion, then closing
the door by pull-
ing on the outside
door handle with
the electronic key
still inside the
vehicle.
Retrieve the elec-
tronic key from
the vehicle and
lock the doors
again.
Interior buzzerExterior buzzerWarning messageDetailsCorrection
procedure

5
When trouble arises
517
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
Once
(Flashes)
• When the doors were unlocked
with the
mechanical key
and then the
“POWER”
switch was
pressed, the
electronic key
could not be
detected in the
vehicle.
• The electronic key could not be
detected in the
vehicle even
after the
“POWER”
switch was
pressed two
consecutive
times.
Touch the elec-
tronic key to the
“POWER” switch
while depressing
the brake pedal.
Once
(Flashes)
An attempt was
made to start the
hybrid system
with the shift posi-
tion in N.Change the shift
position to P and
start the hybrid
system.
Interior buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure

518
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)

Power was turned
off due to the
automatic power
off function.
Next time when
starting the hybrid
system, increase
the engine speed
slightly and main-
tain that level for
approximately 5
minutes to
recharge the 12-
volt battery.
OnceThe electronic key
has a low battery.Replace the elec-
tronic key battery.
(→ P. 4 5 3 )
Interior
buzzerExterior buzzerWarning messageDetailsCorrection
procedure