ABS Lexus GS300h 2013 Owner's Guide

791 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)*
1: Low beam and high beam are the same bulb. (vehicles with discharge
headlights)
*
2: GS300h only.
49LUG J/B DC/DC80Luggage compartment junction block
50FAN NO.180Electric cooling fans
51PTC NO.150PTC heater
52PTC NO.250PTC heater
53HTR50Air conditioning system
54ABS NO.130Motor relay
55ECU-B NO.27.5Grill shutter
56DEICER25Windshield wiper de-icer
57ABS MAIN 310Brake system
58FILTER10Condenser
59A/C W/P7.5Air conditioning system
60SPARE10Spare fuse
61SPARE30Spare fuse
62SPARE20Spare fuse
FuseAmpereCircuit

805 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Halogen front fog lights (if equipped)
To allow enough working
space, turn the steering
wheel to the opposite side
of the bulb to be replaced.
Remove the 2 fender liner
clips.
Turn the steering wheel to the
left when replacing the right
side light bulb, and turn the
steering wheel to the right when
replacing the left side light bulb.
To take out the clips, turn the
head of the clip to unlock, then
remove by pulling.
While holding the clamp
open, pull and remove the
tabs and open the fender
liner.
Unplug the connector while
pressing the lock release.
Replacing light bulbs
1
2
3

8066-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Turn the bulb base counter-
clockwise.
Set the new light bulb.
Align the 3 tabs on the light
bulb with the mounting, and
insert. Turn it clockwise to set.
Set the connector.
After installing the connector,
shake the bulb base gently to
check that it is not loose, turn
the fog lights on once and visu-
ally confirm that no light is
leaking through the mounting.
Reinstall the fender liner
and install the clips.
Insert the clips and turn to lock.
4
5
6
7

8146-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Outer foot lights
Press the upper part of the
outside rear view mirror to
tilt the mirror face upward,
and apply protective tape to
the lower part of the mirror
cover.
Insert 2 flathead screw-
drivers wrapped in protec-
tive tape, and disconnect the
tabs behind the mirror.
Pry the mirror out toward you,
disconnecting the tabs 2 at a
time.
Work carefully, ensuring that
you do not drop the mirror.
Disconnect the connectors
behind the mirror, and
remove the mirror.
When removing the thin con-
nectors, make sure to mark one
of the connectors with a piece of
tape, to avoid mixing them up
when reinstalling.
Work carefully, ensuring that
you do not drop the mirror.
When handling the mirror, do
not touch the parts applied with
grease.
The number of connectors
equipped differs by vehicle
specification.
1
2
3

8166-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Install the visor cover on the
mirror frame, secure it with
a screw, and install the side
turn signal light and outer
foot light.
Use only the screw position
shown in the illustration.
Side turn signal light: Align the
tabs on the light and the cover
and install.
Outer foot light: Interlock the
tabs in the groove of the light
body with those on the cover,
and secure.
Disconnect the tabs, and
separate the top and bottom
of the rear side cover of the
mirror.
8
9

817 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Install the cover of the back
end of the mirror, installing
the lower side and the upper
side in that order.
When installing the lower side
of the cover, insert the side turn
signal light pin into the hole in
the cover.
Secure the cover with
screws and reconnect the
connectors back together.
Secure the cords by returning
them to the hooks as they were.
Align the tabs, and secure
the mirror by pushing in
each diagonally-opposite
pair of tabs in order.
Make sure to insert the tabs in
order as shown in the illustra-
tion, and push them in until a
click is heard.
If you do not hear the click, do
not force the tabs in. Instead,
remove the mirror and check
that the tabs are aligned.
10
11
12

8327-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system
Wa r n i n g
lightWarning light/Details

8387-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional. The vehicle will become extremely unstable during braking, and the
ABS system may fail, which could cause an accident resulting in death or
serious injury.
When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.
If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a
loss of vehicle control and result in death or serious injury.
Stop your vehicle in a safe place as soon as possible. Adjust the tire infla-
tion pressure immediately.
If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is probable that you have a flat tire. Check the tires. If a
tire is flat, change it with the spare tire and have the flat tire repaired by
the nearest any authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional.
Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
NOTICE
Precaution when installing a different tire
When differently constructed tires or tires of different makers, models or
tread patterns are installed, the tire pressure warning system may not oper-
ate properly.

8447-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
(If equipped)
Indicates a malfunction in the adaptive front-
lighting system
Indicates a malfunction in:
• The SRS airbag system; or,
• The seat belt pretensioner system
(If equipped)
Indicates a malfunction in the Automatic High
Beam system
Indicates a malfunction in:
•The ABS; or,
• The brake assist system
Indicates a malfunction in the brake hold system
Wa r n i n g m e s s a g eDetails
(Flashes)

8837-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
When using the compact spare tire
Remember that the compact spare tire provided is specifically designed
for use with your vehicle. Do not use your compact spare tire on another
vehicle.
Do not use more than one compact spare tire simultaneously.
Replace the compact spare tire with a standard tire as soon as possible.
Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly:
• ABS & Brake assist
•VSC
•TRC
• Cruise control (if equipped)
• Dynamic radar cruise control
(if equipped)
• PCS (if equipped)
•EPS
• AFS (if equipped)
• LDH (if equipped)• DRS (if equipped)
• AVS (if equipped)
• LKA (Lane-Keeping Assist)
(if equipped)
• VGRS (if equipped)
• Lexus parking assist monitor
(if equipped)
• Lexus parking assist-sensor
(if equipped)
• Navigation system (if equipped)