sensor Lexus ES300h 2013 Repair Manual

7567-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors,
side impact sensors (front door), side impact sensors (front), side impact sensors
(rear), driver’s seat position sensor, driver’s seat belt buckle switch, front passenger
occupant classification system (ECU and sensors), “AIR BAG ON” indicator light,
“AIR BAG OFF” indicator light, front passenger’s seat belt buckle switch, seat belt
pretensioner assemblies, airbags, interconnecting wiring and power sources.
(→ P. 4 0 )
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sen-
sor may cause the warning light to flash and the warning buzzer to sound even if a
passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light.

7637-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
7
When trouble arises
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. Failure to investigate the cause of the following warnings may
lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer.
Have the vehicle inspected immediately.
Warning messageDetails
Indicates a malfunction in the pre-collision system
Indicates a malfunction in the intuitive parking assistThe malfunctioning assist-sensor is flashing.
Indicates a malfunction in the dynamic radar cruise
control system (if equipped) or the cruise control sys-
temPress the “ON/OFF” button once to deactivate the
system, and then press the button again to reacti-
vate the system.
(Flashes)
(If equipped)
(If equipped)

7707-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
Warning messageDetailsCorrection procedure
Indicates that intuitive
parking assist sensor is
dirty or covered with ice
Clean the sensor.
Indicates that the radar
sensor is dirty or covered
with ice
Clean the sensor.
Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance
•Turn off the snowmode.
• If the windshield wip- ers are on, turn them
off or set them to a
mode other than
AUTO or high speed
wiper operation.
Indicates that your vehi-
cle is nearing the vehicle
ahead (in vehicle-to-vehi-
cle distance mode)
Slow the vehicle by
applying the brakes.
(If equipped)
(If equipped)
(If equipped)
(If equipped)

7717-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
7
When trouble arises
Indicates that there is a
high possibility of a frontal
collision, or that the pre-
collision braking function
is operating
Slow the vehicle by
applying the brakes.
Indicates that the LDA
(Lane Departure Alert)
system is suspendedThe camera sensor
temperature is higher
than the operation tem-
perature range.
Restart the LDA (Lane
Departure Alert) system
after driving for a while.
Alerts the driver that the
vehicle is out of the lane
markers (while the LDA
[Lane Departure Alert]
system is operating)The warning buzzer
sounds continuously.
The lane line on the
side the vehicle devi-
ates from flashes.
Check around the vehi-
cle and steer the vehicle
back within the lane
markers with safe steer-
ing.
Warning messageDetailsCorrection procedure
(Flashes)
(If equipped)
(If equipped)
(If equipped)

7727-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
Indicates that the Blind
Spot Monitor sensors or
the surrounding area on
the bumper is dirty or
covered with ice
Clean the sensor and its
surrounding area on the
bumper.
Indicates that the hybrid
system has overheatedThis message may be
displayed when driving
under severe operating
conditions. (For exam-
ple, when driving up a
long steep hill.)
Stop and check.
(→ P. 8 1 6 )
Indicates that remaining
fuel is approximately 2.6
gal. (9.7 L, 2.1 Imp.gal.) or
less
Refuel the vehicle.
Indicates that the “START
STOP ENGINE”
<“POWER”> switch is
turned off or turned to
ACCESSORY mode and
the driver’s door is
opened while the lights
are turned on
Turn the lights off.
Indicates that the driver’s
door was opened with the
shift position in any posi-
tion other than P
Shift the shift position to P.
Warning messageDetailsCorrection procedure
(If equipped)
(Hybrid vehicles)
(Flashes)
(Flashes)
(Hybrid vehicles)

7767-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supple-ment” for the maintenance interval applicable to your vehicle.
Warning messageDetailsCorrection procedure
Indicates that the tire
position information can-
not be recognized
Drive for a short while
and check if the display
updates. If the radio wave condi-
tions improve, the dis-
play may return to
normal. If the tire pres-
sure is still not dis-
played after driving for
several minutes, stop
the vehicle in a safe
place, turn the “START
STOP ENGINE”
<“POWER”> switch off
then on again, and start
driving.
If the tire pressure is still
not displayed even
after repeating this sev-
eral times, have the
vehicle inspected at
your Lexus dealer.
Indicates that the pre-col-
lision system is not cur-
rently functional because
the grille cover or the
sensor is dirtyThis message also
appears when the pre-
collision system is not
functional due to over-
heating.
• Check the grille coverand the sensor and
clean them if they are
dirty.
• In case of overheating, the system will become
functional once the sys-
tem cools down.
(Flashes)
(If equipped)

860
ES350 300h_OM_OM33A01U_(U)
8-2. Customization
■Automatic light control system (→P. 2 2 4 )
■Lights ( →P. 2 2 4 )
*:Except for Canada
FunctionDefault
settingCustom-
ized setting
“Headlamps-On Sensitiv-
ity”
(Adjust the sensitivity of the
ambient light sensor)
Standard-2 to 2O—O——O
“Headlamps Auto-Off
Ti m e r ”
(Adjust the time
elapsed before the head-
lights automatically turn
off)
30 seconds
Off
O—O—OO60 seconds
90 seconds
Welcome light illumination
controlOnOff—————O
123456
FunctionDefault settingCustom-
ized setting
“Daytime Running Lights”
(Daytime running lights
can be disabled)
*
OnOffO—O—OO
123456

ES350 300h_OM_OM33A01U_(U)
8618-2. Customization
8
Vehicle specifications
■Intuitive parking assist* (→ P. 2 7 1 )
*: If equipped
■Automatic air condit ioning system (→P. 3 4 7 , 3 5 9 )
FunctionDefault
settingCustom-
ized setting
“Distance (Front)”
(Detection distance of the
front center sensor)
Fa rNearO—O——O
“Distance (Rear)”
(Detection distance of the
rear center sensor)
Fa rNearO—O——O
“Alert Volume”
(Alert volume can be
adjusted)
31 to 5O—O——O
“Display”
(when intuitive parking
assist is operating)All sensors displayedDisplay offO—O——O
123456
FunctionDefaultsettingCustom-
ized setting
“Efficient Ventilation
Mode”
(Switching between out-
side air and recirculated air
mode linked to “AUTO”
switch operation)
OnOff——O——O
“A u t o A / C M o d e ”
(A/C Auto switch opera-
tion)
OnOffO—O——O
“Smog Sensor Sensitivity”
(Exhaust gas sensor sensi-
tivity)
Standard-3 to 3O—O——O
123456

862
ES350 300h_OM_OM33A01U_(U)
8-2. Customization
■Illumination (→P. 603)
FunctionDefault
settingCustom-
ized setting
Interior lights illumination
controlOnOff—————O
“Interior Lights Off Timer”
(Time elapsed before the
interior lights turn off)
15 seconds
Off
O—O—OO7. 5 s e c o n d s
30 seconds
Operation after the
“START STOP ENGINE”
<“POWER”> switch is
turned off
OnOff—————O
Operation when the doors
are unlockedOnOff—————O
Operation when you
approach the vehicle with
the electronic key on your
person
OnOff—————O
Footwell lightingOnOff—————O
Outer foot lightsOnOff—————O
“Exterior Lights Off Timer”
(Time elapsed before the
outer foot lights turn off)
15 seconds
Off
O—O—OO7. 5 s e c o n d s
30 seconds
“Ambient illumin. (instru-
ment panel)”
(Enable/disable operation
of the ornament lights on
the instrument panel)*
OnOff—O—OOO
Sensitivity of the ambient
light sensor used for dim-
ming the meter lights etc.
Standard-2 t o +2——O——O
Sensitivity of the ambient
light sensor used for
brightening the meter
lights etc.
Standard-2 t o +2——O——O
123456

886What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)●
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts?
(→
P. 7 5 4 )
●The parking brake indicator is on
Is the parking brake released? (→ P. 222)
Depending on the situation, othe r types of warning buzzer may
also sound. ( →P. 751, 761)
●Did anyone inside the vehicle open a door during setting the
alarm?
The sensor detects it and the alarm sounds. ( →P. 8 4 )
To stop the alarm, turn the “START STOP ENGINE” <“POWER”>
switch to IGNITION ON mode or start the engine system>.
●Is the electronic key left inside the vehicle or the moon roof
opened?
Check the message on the multi-information display.
(→ P. 76 1 )
A warning buzzer sounds during driving
An alarm is activated
and the horn sounds
A warning buzzer sounds wh en leaving the vehicle