2013 Lexus GS300h trunk

789 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
31IGCT NO.57.5Power management system, shift posi-
tion sensor
32WIP-S7.5Windshield wipers, driver support sys-
tem
33WA S H - S5Windshield washer, driver support sys-
tem
34COMB SW5Windshield wipers
35DOME7.5
Personal lights, ornament lights, trunk
light,
footwell lights, door courtesy lights, van-
ity
lights, rear door inside handle illumina-
tions,
power trunk lid
36MPX-B10
Body ECU, smart entry & start system,
electric tilt and telescopic steering col-
umn, power seats, head-up display, front
door ECU, gauges and meters, steering
sensor, yaw rate and G sensor, overhead
module, RR CTRL SW, power trunk lid,
clock, CAN gateway ECU
37IGCT NO.410Power control unit
38IGCT NO.37.5Hybrid battery (traction battery), DC/DC
converter
39IGCT NO.25Hybrid system
40IG2 NO.15DCM, CAN gateway ECU
41GAUGE5Gauges and meters
42EPS*280Electric power steering
43DC/DC150RH-J/B DC/DC, P/I DC/DC,
LH-J/B DC/DC, LUG-J/B DC/DC
44P/I DC/DC100RR S/SHADE, DEFOG, FOG, TAIL,
PA N E L
45RH J/B DC/DC80Right-hand junction block
FuseAmpereCircuit

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

811 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Rear turn signal lights
Open the trunk lid and
remove the cover.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
When installing, reverse the
steps listed.
After installing the bulb base,
secure the cord with the clips
and install the cover in its origi-
nal position.
1
2
3
4

8126-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Back-up light
Open the trunk lid.
For the left side (vehicles
with power trunk lid only):
Pry out each side of the
trunk closer switch in turn
by inserting a screwdriver
into the base.
To prevent damage, cover the
tip of the screwdriver with a rag.
Remove the clips on which-
ever side you are replacing
and open the cover of the
trunk lid.
Turn the bulb base counter-
clockwise.
1
2
3
4

8347-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
After taking the specified steps to correct the suspected problem,
check that the warning light goes off.
Follow the correction procedures.
Wa r n i n g
lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
Indicates that a door or the
trunk is not fully closed
Check that all the doors and
the trunk are closed.
Low fuel level warning light
Indicates remaining fuel is
approximately 9.9 L (2.6
gal., 2.2 Imp.gal.) or less
Refuel the vehicle.
Seat belt reminder light
(warning buzzer)
*2
Warns the driver and/or
front passenger to fasten
their seat belts
Fasten the seat belt.
If the front passenger’s
seat is occupied, the front
passenger’s seat belt also
needs to be fastened to
make the warning light
(warning buzzer) off.
Master warning light
A buzzer sounds and the
warning light comes on
and flashes to indicate that
the master warning sys-
tem has detected a mal-
function.
P. 8 3 9

8497-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
Indicates that the trunk
is not fully closed
If the vehicle reaches
a speed of 5 km/h
(3 mph),
flashes and a buzzer
sounds to indicate
that the trunk is not
yet fully closed.
Close the trunk.
Indicates that the win-
dows are not fully
closed (with the power
switch off, and the
driver’s door open)
Close all the windows.
(If equipped)
Indicates that the moon
roof is not fully closed
(with the power switch
off, and the driver’s
door open)
Close the moon roof.
(If equipped)
Indicates that the win-
dows and the moon
roof are not fully
closed (with the power
switch off, and the
driver’s door open)
Close all the windows
and the moon roof.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes)
(Flashes)
(Flashes)

8517-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
Indicates that the brake
hold system is not
available
The reason the brake
hold system is not
available may be dis-
played.• Close the driver’s
door.
• Fasten the driver’s
seat belt.
• Close the trunk and
hood.
Indicates that the brake
hold system is unable
to continue brake hold
function
The reason the brake
hold system is not
continue may be dis-
played.
• Depress the brake
pedal.
• Close the driver’s
door.
• Fasten the driver’s
seat belt.
Indicates that the park-
ing brake is set auto-
matically while the
brake hold system is
holding the brakes
Release the parking
brake.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes)

8957-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
With the compressor switch off, disconnect the hose from the
valve on the tire and then pull out the power plug from the power
outlet socket.
Some sealant may leak when the hose is removed.
Install the valve cap onto the valve of the emergency repaired
tire.
Attach the air release cap to
the end of the hose.
If the air release cap is not
attached, the sealant may leak and
the vehicle may get dirty.
Temporarily store the bottle in the trunk while it is connected to
the compressor.
To spread the liquid sealant evenly within the tire, immediately
drive safely for about 5 km (3 miles) below 80 km/h (50 mph).
After driving for about 5 km
(3 miles), stop your vehicle in
a safe place on a hard, flat sur-
face and remove the air release
cap from the hose before
reconnecting the repair kit.
13
14
15
16
17
18