Lexus GS250 2012 Owner's Manual

7707-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if
vehicle-to-vehicle distance decreases:
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
The LKA (Lane-Keeping Assist) lane departure warning function
In the following cases, the warning message will not be displayed even if a
lane line is crossed.
When the vehicle speed deviates from the operating range of the LKA sys-
tem functions
When the lane lines cannot be recognized
When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes

7717-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)A warning message is shown on the multi-information display.
After taking the specified steps to correct the suspected problem,
check that the warning message goes off.
Follow the correction procedures.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that the Auto-
matic High Beam
switch is pressed while
the headlights are in
low beam.Turn the high beam on
and press the Auto-
matic High Beam
switch again.
Indicates that the
washer fluid level is
low
Add washer fluid.
(If equipped)
Indicates that the fuel
injectors require main-
tenance
Have any authorized
Lexus dealer or
repairer, or another
duly qualified and
equipped professional
replenish the injector
cleaner and reset the
message.

7727-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that the tire
inflation pressure is
lowCheck the tire inflation
pressure, and adjust to
the appropriate level.
(If equipped)
Indicates a malfunc-
tion in the tire pressure
warning system
Stop the vehicle in a
safe place and turn the
engine switch off then
on again.
If the tire pressure
warning indicator
flashes for 1 minute
then illuminates,
there is a malfunction
in the system. Have
the vehicle inspected
by any authorized
Lexus dealer or
repairer, or another
duly qualified and
equipped profes-
sional.

7737-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that the tire
position information
cannot be recognized
Drive for a short while
and check if the display
updates.
If the radio wave
conditions improve,
the display may
return to normal. If
the tire pressure is
still not displayed
after driving for sev-
eral minutes, stop the
vehicle in a safe
place, turn the engine
switch off then on
again, and start driv-
ing.
If the tire pressure is
still not displayed
even after repeating
this several times,
have the vehicle
inspected by any
authorized Lexus
dealer or repairer, or
another duly quali-
fied and equipped
professional.

7747-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)After taking the specified steps to correct the suspected problem,
check that the warning message and light go off.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that the pre-
crash safety system is
not currently functional
because the grille cover
or the sensor is dirty
This message also
appears when the
pre-crash safety sys-
tem is not functional
due to overheating.Check the grille cover
and the sensor and
clean them if they are
dirty.
In case of overheat-
ing, the system will
become functional
once the system
cools down.
Have the malfunction repaired immediately.
(Flashes)
Inte-
rior
buzzerExterior
buzzerWarning messageDetailsCorrection
procedure
Once
The electronic
key is not
detected when an
attempt is made to
start the engine.Start the
engine
with the
electronic
key pres-
ent.
(Flashes)

7757-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
Inte-
rior
buzzerExterior
buzzerWarning messageDetailsCorrection
procedure
Once3
times
The electronic
key was carried
outside the vehi-
cle and a door
other than the
driver’s door was
opened and
closed while the
engine switch was
in a mode other
than off.
Bring the
electronic
key back
into the
vehicle.
The driver’s door
was opened and
closed while the
electronic key
was not in the
vehicle, the shift
lever was in P and
the engine switch
was not turned
off.
Turn the
engine
switch off
or bring
the elec-
tronic key
back into
the vehicle.(Flashes)

7767-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
Inte-
rior
buzzerExterior
buzzerWarning messageDetailsCorrection
procedure
Once
Con-
tinu-
ous
An attempt was
made to exit the
vehicle with the
electronic key and
lock the doors
without first turn-
ing the engine
switch off when
the shift lever was
in P.
Turn the
engine
switch off
and lock
the doors
again.
9
times
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-
tinu-
ous

The driver’s door
was opened when
the shift lever was
not in P and the
engine switch was
not turned off.
Shift the
shift lever
to P.
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)

7777-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
Inte-
rior
buzzerExterior
buzzerWarning messageDetailsCorrection
procedure
Con-
tinu-
ousCon-
tinu-
ous
The driver’s door
was opened and
closed while the
electronic key
was not in the
vehicle, the shift
lever was not in P
and the engine
switch was not
turned off.•Shift the
shift
lever to
P.
•Bring the
elec-
tronic
key back
into the
vehicle.

Con-
tinu-
ous
An attempt was
made to lock the
doors using the
smart entry & start
system while the
electronic key was
still inside the
vehicle.Retrieve
the elec-
tronic key
from the
vehicle and
lock the
doors
again.
(Displayed alternately)
(Flashes)
(Flashes)

7787-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
Once
Con-
tinu-
ous
An attempt was
made to lock either
front door by open-
ing a door and put-
ting the inside lock
button into the lock
position, then clos-
ing the door by
pulling on the out-
side door handle
with the electronic
key still inside the
vehicle.
For some models
only: An attempt
was made to lock
the doors other
than using the
smart entry & start
system while the
electronic key was
still inside the
vehicle.
Retrieve
the elec-
tronic key
from the
vehicle and
lock the
doors
again.
(Flashes)

7797-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
Inte-
rior
buzzerExterior
buzzerWarning messageDetailsCorrection
procedure
Once
• When the doors
were unlocked
with the
mechanical key
and then the
engine 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 engine
switch was
pressed two
consecutive
times.
To u c h t h e
electronic
key to the
engine
switch
while
depressing
the brake
pedal.
Once
An attempt was
made to start the
engine with the
shift lever in an
incorrect position.Shift the
shift lever
to P and
start the
engine.
(Flashes)
(Flashes)