2013 Lexus GS300h sensor

7946-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Right-hand drive vehicles
FuseAmpereCircuit
1P/SEAT1 F/L30Power seats
2D/L NO.125Power door lock system
3NV-IR10Lexus night view
4FL S/HTR10Seat heaters/ventilators
5STRG HTR15Heated steering wheel
6WIPER-IG5Windshield wipers
7LH-IG10
Seat belts, body ECU, AFS, Remote
Touch screen, overhead module, rain-
drop sensor, moon roof, inside rear view
mirror, LKA, front left-hand door ECU,
Lexus parking assist-sensor, power seats,
CAN gateway ECU, PTC heater, head-
light cleaner
8LH ECU-IG10
Yaw rate and G sensor, air conditioning
system, VGRS, AFS, driver support sys-
tem, EPB
9DOOR FL30Outside rear view mirror defoggers,
power window (front left-hand)
10CAPACITOR
(HV)10Capacitor
11AM27.5Power management system
12D/L NO.225Power door lock system
13DOOR RL30Power window (rear left-hand)

7966-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Right side instrument panel
Left-hand drive vehicles
FuseAmpereCircuit
1P/SEAT1 F/R30Power seats
2FR P/OUTLET15Power outlet (front)
3RR P/OUTLET15Power outlet (rear)
4P/SEAT2 F/R25Power seats
5AV S20AV S
6STRG HTR15Heated steering wheel
7WA S H20Windshield washer
8RH ECU-IG10
Navigation system, VGRS, pre-crash
seat belts, air conditioning system, brake
system, Lexus night view, yaw rate and
G sensor, DRS, capacitor
9RH-IG10
Tension reducer, seat heater/ventilator
switches, front right-hand door ECU,
“nanoe™”, CAN gateway ECU, tire pres-
sure warning system, power seats
10DOOR FR30
Front right-hand door control system
(outside rear view mirror defoggers,
power window)

8006-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Trunk
FuseAmpereCircuit
1PSB30Pre-crash seat belts
2PTL25Power trunk lid
3RR J/B-B10Smart entry & start system
4RR S/HTR20Seat heaters (rear)
5FR S/HTR10Seat heaters/ventilators (front)
6RR FOG10Rear fog light
7DC/DC-S (HV)7.5DC/DC converter
8BATT FAN (HV)20Hybrid battery (traction battery) cooling
fan system
9SECURITY7.5SECURITY
10ECU-B NO.37.5Parking brake
11TRK OPN7.5Power trunk lid, trunk open motor
12DCM (HV)7.5No circuit
13AC INV (HV)20No circuit
14RR-IG15Radar sensor, Blind Spot Monitor
15RR ECU-IG10
Power trunk lid, parking brake, tension
reducer (rear left-hand), RR CTRL SW,
tire pressure warning system
16EPS-IG5Electric power steering system
17BACK UP7.5Back-up light

8367-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor 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
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empty, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional
as soon as possible.
Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage tempo-
rarily drops, the electric power steering system warning light may come on
and the warning buzzer may sound.
When the tire pressure warning light comes on
Carry out the following procedure after the tire temperature has lowered suf-
ficiently.
Check the tire inflation pressure and adjust to the appropriate level.
If the warning light does not go out even after several minutes, check that
the tire inflation pressure is at the specified level and carry out initialization.
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficiently.
The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as
natural air leaks and tire inflation pressure changes caused by temperature. In
this case, adjusting the tire inflation pressure will turn off the warning light
(after a few minutes).

8427-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
A buzzer sounds and a warning message is shown on the multi-
information display. Failure to investigate the cause of the follow-
ing warnings may lead to the system operating abnormally and pos-
sibly cause an accident. Have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Have the vehicle inspected immediately.
Wa r n i n g m e s s a g eDetails
(If equipped)
Indicates a malfunction in the pre-crash safety
system
(If equipped)
Indicates a malfunction in the Lexus parking-
assist sensor
All assist-sensors flash.
Indicates a malfunction in the dynamic radar
cruise control system (if equipped) or the cruise
control system
Press the “ON/OFF” button once to deactivate
the system, and then press the button again to
reactivate the system.
(Flashes)

8547-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that Lexus
parking assist-sensor is
dirty or covered with
ice
Clean the sensor.
(If equipped)
Indicates that the radar
sensor is dirty or cov-
ered with ice
Clean the sensor.
(If equipped)
Indicates that the radar
cruise control system is
unable to judge vehi-
cle-to-vehicle distance
• Turn off the snow
mode.
• If the windshield
wipers are on, turn
them off or set them
to a mode other than
AUTO or high speed
wiper operation.
(If equipped)
Indicates that your
vehicle is nearing the
vehicle ahead (in vehi-
cle-to-vehicle distance
mode)
At the same time,
will appear on
the head-up display
(the image flashes).
Slow the vehicle by
applying the brakes.

8557-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
(If equipped)
Indicates that there is a
high possibility of a
frontal collision, or that
the pre-crash braking
function is operating
At the same time,
will appear
on the head-up dis-
play.
Slow the vehicle by
applying the brakes.
(If equipped)
Indicates that the LKA
(Lane-Keeping Assist)
is suspended
• The camera sensor
temperature is higher
than the operation
temperature range.
• The power steering
system operation is
restricted.
Restart the LKA after
driving for a while.
(If equipped)
Alerts the driver that
the vehicle is out of the
lanes (while the LKA
[Lane-Keeping Assist]
system is operating)
The warning buzzer
sounds continuously.
The lane markings
and/or the steering
wheel marking flash.
At the same time,
will appear
on the head-up dis-
play (part of the
image flashes).
Check around the vehi-
cle and back to inside
of the lane markings.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes
rapidly)

8567-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
(If equipped)
Indicates that the LKA
(Lane-Keeping Assist)
system detects no-
handed driving (while
the lane keeping assist
function is operating)
The warning buzzer
sounds twice.
Grip the steering wheel
firmly.
(If equipped)
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
overheated
This message may be
displayed when driv-
ing under severe
operating condi-
tions. (For example,
when driving up a
long steep hill.)
Stop and check.
(P. 917)
Indicates that the
hybrid system output is
limited because the
engine oil is over-
heatedDrive the vehicle at a
safe speed until the
warning message dis-
appears.
Wa r n i n g m e s s a g eDetailsCorrection procedure