Lexus GS450h 2018 Owner's Manual / LEXUS 2018 GS450H OWNER'S MANUAL (OM30G62U)

4317-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
7
When trouble arises
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supplement”
for the maintenance interval applicable to your vehicle.
(U.S.A. only)
Indicates that all maintenance according to the driven
distance on the maintenance schedule
* should be per-
formed soon.
Comes on approximately 4500 miles (7200 km)
after the message has been reset.
→ If necessary, perform maintenance.
Indicates that the engine o il and oil filter should be
changed
→ Have the engine oil and oil filter checked and/or
changed by your Lexus dealer. After changing the
engine oil, the oil change system should be reset.
( → P. 355)
(U.S.A. only)
Indicates that all maintenanc e is required to correspond
to the driven distance on the maintenance schedule
*.
Comes on approximately 5000 miles (8000 km)
after the message has been reset. (The message will
not display properly unless the message has been
reset.)
→ Perform the necessary maintenance. Please reset
the message after the maintenance is performed.
(→ P. 344)
(If equipped)
Indicates that the Automati c High Beam switch was
pressed while the low beams were on
→ Turn the high beam headlights on before pressing
the Automatic High Beam switch.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-collision braking and pre-
collision brake assist are stopped (The pre-collision
warning function will be operational)
→ Turn the VSC on. ( →P. 271)
Warning messageDetails/Actions

4327-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
Carrying out the corresponding action turns the messages off.
Warning messageDetails/Actions
(If equipped)
Indicates that the PCS (Pre-Collision System) is tempo-
rarily unavailable
→ When conditions improve, the system resumes
operation. If this item is displayed continuously, have
the vehicle inspected by your Lexus dealer.
Air conditioning, heater and other operations are tem-
porarily limited due to high power consumption
→ Turn off unnecessary electronic equipment to
reduce power consumption.
Please wait until the power supply returns to nor-
mal.
If this item is frequently displayed, have the vehicle
inspected at your Lexus dealer immediately.
(If equipped)
Indicates that part of th e PCS (Pre-Collision System)
sensor is dirty, covered with ice, etc.
A buzzer also sounds.
→ Remove any dirt, ice, etc.
Other displayed messages
(Flashes)
(Flashes)
(Flashes)
Warning messageDetails/Actions
Maintenance of the hybrid battery (traction battery)
cooling component is required
The filter may be clogged, the air intake vent may be
blocked or there may be a gap in the duct.
→ Have maintenance performe d on the hybrid battery
(traction battery) cooling component at your Lexus
dealer.

4337-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
7
When trouble arises
*: For the EV drive mode operating conditions (→P. 187).
Warning messageDetails/Actions
Indicates that the EV drive mode is not available*
The reason the EV drive mo de is not available (the
vehicle is idling, battery char ge is low, speed is higher
than the EV drive mode operating speed range, accel-
erator pedal is depressed too much) may be dis-
played.
A buzzer also sounds.
→ Use the EV drive mode when it becomes available.

4347-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
*: For the EV drive mode operating conditions (→P. 187).
Warning messageDetails/Actions
Indicates that the EV drive mode has been automatically
canceled
*The reason the EV drive mo de is not available (the
battery charge is low, speed is higher than the EV
drive mode operating speed range, accelerator pedal
is depressed too much) may be displayed.
A buzzer also sounds.
→ Drive the vehicle for a while.
(Flashes)

4357-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
7
When trouble arises
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displa yed even if vehicle-to-vehi-
cle 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
■Open door warning message
The open door warning message continues to display until a door or the trunk is fully
closed, even if the power switch is turned of f. However, approximately 20 minutes after a
door or the trunk is not fully closed, the 12-v olt battery-saving function operates and the
display turns off even though a door or the trunk is not fully closed.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio sound.

4367-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
InteriorbuzzerExteriorbuzzerWarning messageDetails/Actions
Once⎯
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
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 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 power switch was not
turned off.
→Turn the power switch off or
bring the electronic key back
into the vehicle.
OnceCon-
tinuous
An attempt was made to exit the
vehicle with the electronic key and
lock the doors without first turning
the power switch off when the shift
lever was in P.
→Turn the power switch off and
lock the doors again.
(Flashes)
(Flashes)
(Displayed alternately)
(Flashes)

4377-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
7
When trouble arises
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-
tinuous⎯
The driver’s door was opened when
the shift lever was not in P and the
power switch was not turned off.
→ Shift the shift lever to P.
Con-
tinuousCon-
tinuous
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 power switch was
not turned off.
→Shift the shift lever to P.
→ Bring the electronic key back
into the vehicle.
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Displayed alternately)
(Flashes)

4387-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
⎯Con-
tinuous
• An attempt was made to lock thedoors using the sm art access sys-
tem with push-button start while
the electronic key was still inside
the vehicle.
• An attempt was made to lock either front door by opening a
door and putting the inside lock
button into the lock position, then
closing the door with the elec-
tronic key still inside the vehicle.
→ Retrieve the electronic key
from the vehicle and lock the
doors again.
Once⎯
• 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 electronic key to the
power switch while depressing
the brake pedal.
Once⎯
An attempt was made to start the
hybrid system with the shift lever in
an incorrect position.
→ Shift the shift lever to P and start
the hybrid system.
⎯⎯
Power was turned off due to the
automatic power off function.
→Next time when starting the
hybrid system, operate the
hybrid system for approximately
5 minutes to recharge the 12-
volt battery.
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)

4397-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
7
When trouble arises
Once⎯
The electronic key has a low battery.
→Replace the electronic key bat-
tery. ( →P. 382)
Once⎯
The driver’s door was opened and
closed with the power switch turned
off and then the power switch was
put in ACCESSORY mode twice
without the hybrid system being
started.
→ Press the power switch while
depressing the brake pedal.
During an hybrid system starting
procedure in the event that the elec-
tronic key was not functioning prop-
erly ( →P. 455), the power switch
was touched with the electronic key.
→ Press the power switch within 10
seconds of the buzzer sounding.
Once⎯
The steering lock could not be
released within 3 seconds of the
power switch being pressed.
→Press the power switch while
depressing the brake pedal and
moving the steering wheel left
and right.
Once⎯
The power switch has been turned
off with the shift lever in a position
other than P or N.
→Shift the shift lever to P.
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)
(Flashes)

4407-2. Steps to take in an emergency
GS450h_OM_OM30G62U_(U)
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio sound.
Once⎯
After the power switch has been
turned off with the shift lever in a
position other than P, the shift lever
has been shifted to P.
→ Turn the power switch off.
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)