Lexus GS350 2020 Owner's Manual

4617-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
7
When trouble arises
Indicates that engine oil level is low
This message may ap pear if the vehicle is stopped on a
slope. Move the vehicle to a level surface and check to
see if the message disappears.
A buzzer also sounds.
 Check the level of engine oil, and add if necessary.
Indicates a malfunction in:
• The Automatic High Beam system (if equipped);
• The AFS (Adaptive Front-lighting System) (if
equipped); or
• The LED headlight system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(GS F for Canada only)
Indicates that the brake pads are worn out
A buzzer also sounds
 Have the vehicle inspected visually by your Lexus
dealer.
Warning messageDetails/Actions

4627-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
(GS F for U.S.A. only)
Indicates that the brake pads are worn outA buzzer also sounds
 Have the vehicle inspected visually by your Lexus
dealer.
Indicates that the accelerator and brake pedals are
being depressed simultaneously, and the brake override
system is operating.
 Release the accelerator pedal and depress the
brake pedal. ( P. 189)
Indicates that the tire in flation pressure is low
 Check the tire inflation pressure, and adjust to the
appropriate level.
Warning messageDetails/Actions
(Flashes)

4637-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
7
When trouble arises
Indicates a malfunction in the tire pressure warning sys-
tem
 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 at your Lexus dealer.
Indicates that the tire position information cannot be rec-
ognized
 Drive for a short while an d check if the display
updates.
If the radio wave conditions improve, the display
may return to normal. If th e tire pressure is still not
displayed after driving for several 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 process
several times, have the vehicle inspected at your
Lexus dealer.
Indicates that the washer fluid level is low
 Add washer fluid.
Except F SPORT models of GS350, and GS F: Indicates
that remaining fuel is approx imately 2.6 gal. (10.0 L, 2.2
Imp.gal.) or less
F SPORT models of GS350: Indicates remaining fuel is
approximately 2.6 gal. (9.9 L, 2.2 Imp.gal.) or less
 Refuel the vehicle.
Warning messageDetails/Actions

4647-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supplement”
for the maintenance interval applicable to your vehicle.
Indicates that the outside temperature is approximately
37 F (3 C) or lower
A buzzer also sounds.
 Drive carefully, as the road may be icy.
(GS350 only)
Indicates that the engine oil is scheduled to be changed
Check the engine oil and change if necessary. After
changing the engine oil, the oil change system
should be reset. ( P. 386)
(The indicator will not work properly unless the oil
maintenance data has been reset.)
(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.
(GS350 only)
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. 386)
(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. 371)
Warning messageDetails/Actions

4657-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
7
When trouble arises
Warning messageDetails/Actions
(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. 300)

4667-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
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.
(Flashes)
(Flashes)
(Flashes)

4677-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
7
When trouble arises
■Warning message in radar cruise mode (if equipped)
In the following cases, the wa rning 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 (GS350 only)
The open door warning message continues to display until a door or the trunk is fully
closed, even if the engine switch is turned off. However, approximately 20 minutes after a
door or the trunk is not fully closed, the batt ery-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.

4687-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
InteriorbuzzerExteriorbuzzerWarning messageDetails/Actions
Once
The electronic key is not detected
when an attempt is made to start the
engine.
 Start the engine with the elec-
tronic 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 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 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 engine switch off when the shift
lever was in P.
Turn the engine switch off and
lock the doors again.
(Flashes)
(Flashes)
(Displayed alternately)
(Flashes)

4697-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(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
engine 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 engine 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)

4707-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(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 engine swit ch 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.
 Touch the 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.

Power was turned off due to the
automatic power off function.
Next time when starting the
engine, increase the engine
speed slightly and maintain that
level for approximately 5 min-
utes to recharge the battery.
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)