TABLE OF CONTENTS6
GS450h_300h_OM_OM30D53E_(EE)6-3. Do-it-yourself maintenance
Positioning a floor jack......735
Hood....................................800
Positioning a floor jack.......735
Positioning a floor jack.......735
12-volt battery ................... 748
Tires................................... 753
Tire inflation pressure ....... 770
Wheels............................... 772
Air conditioning filter ....... 775
Electronic key battery ....... 777
Checking and replacing
fuses..................................780
Light bulbs ........................ 800
Essential information
Emergency flashers ........... 820
If your vehicle has to be stopped
in an enargency.................8217-1. Steps to take in an emergency
If your vehicle needs to be
towed.................................822
If you think something is
wrong.................................829
If a warning light turns on or a
warning buzzer
sounds...............................830
If a warning message is dis-
played...............................838
If you have a flat tire (vehicles
with a spare tire))..............870
If you have a flat tire (vehicles
without a spare
tire)...................................884
If the hybrid system will not
start....................................902
If the shift lever cannot be
shifted from P....................904
If the parking brake cannnot be
released.............................905
If the electronic key does not
operate properly................908
If the 12-volt battery is dis-
charged.............................911
If your vehicle overheats ... 915
If the vehicle becomes
stuck.................................923
7When Trouble arises
15Pictorial index
GS450h_300h_OM_OM30D53E_(EE)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 285
Precautions against winter season. . . . . . . . . . . . . . . . . . . . . . . P. 434
To prevent freezing (windshield wiper de-icer)
*1 . . . . . . . . . . P. 500
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . P. 722
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 293
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 293
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 929
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 753
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 936
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 434
Checking/rotation/tire pressure warning system
*1 . . . . . . . . . P. 753
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 870, 884
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Engine compartment cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 739
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 930
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 915
Warning messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 847
Headlights/front position lights/daytime running lights . . . . . . P. 272
Front fog lights
*1/rear fog light*2. . . . . . . . . . . . . . . . . . . . . . P. 283
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 264
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
Stop lights
Brake Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 269
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
Back-up light
*2
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 800, Watts: P. 939)
*1: If equipped
*2: They may be located on the opposite side depending on the target region.
8
9
10
11
12
13
14
1142. Instrument cluster
GS450h_300h_OM_OM30D53E_(EE)
Multi-information display
The multi-information display presents the driver with a variety of
driving-related data including the current outside air temperature.
Energy monitor (P. 131)
Outside temperature display
(P. 115)
Trip information (P. 115)
Displays driving range, fuel con-
sumption and other cruising
related information
Tire inflation pressure (if equipped) (P. 117)
Drive monitor (P. 117)
Lexus parking assist-sensor display* (if equipped) (P. 347)
Dynamic radar cruise control display* (if equipped) (P. 302)
Dynamic radar cruise control with full-speed range display*
(if equipped) (P. 318)
LKA (Lane-Keeping Assist) display* (if equipped) (P. 339)
Warning messages (P. 838)
Automatically displayed when a malfunction occurs in one of the vehicle’s
systems. Display can be switched by pressing the “DISP” button. (P.
115)
*: Automatically displayed when the system is used. Display can be
switched by pressing the “DISP” button. (P. 115)
Display contents
1172. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30D53E_(EE)
Tire inflation pressure (if equipped)
Outside temperature, average
fuel consumption after refueling
or driving range can be selected
and displayed.
If displayed on the drive moni-
tor, other trip information or
warning messages can be dis-
played simultaneously.
For display and selection proce-
dures, follow the “Setting up the
displays”.
The information displayed on the
drive monitor will not be displayed
on the trip information screen.
Displays inflation pressure of each tire
For the vehicles with a compact spare tire: The
inflation pressure of the spare tire will not be dis-
played.
Drive monitor
1202. Instrument cluster
GS450h_300h_OM_OM30D53E_(EE)
System check display
After turning the power switch to ON mode, “SYSTEM CHECK” is dis-
played while system operation is checked.
Outside temperature display
In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change.
When stopped, or driving at low speeds (less than 20 km/h [12 mph])
When the outside temperature has changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)
Setting display automatic cancelation
In the following situations, setting display in which the settings can be
changed through the “DISP” button will automatically be turned off.
When a warning message appears while the setting display is displayed
When the vehicle begins to move while the setting display is displayed
Tire inflation pressure (if equipped)
It may take a few minutes to display the tire inflation pressure after the
power switch is turned to ON mode. It may also take a few minutes to dis-
play the tire inflation pressure after inflation pressure has been adjusted.
“---” may be displayed if the tire position information cannot be determined
due to unfavorable radio wave conditions.
Tire inflation pressure changes with temperature. The displayed values may
also be different from the values measured using a tire pressure gauge.
Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is
characteristic of liquid crystal displays, and there is no problem continuing to
use the display.
Customization
Setting of available languages can be changed. (Customizable features: P.
944)
2344-1. Before driving
GS450h_300h_OM_OM30D53E_(EE)
NOTICE
When driving the vehicle
Do not depress the accelerator and brake pedals at the same time during
driving, as this may restrain driving torque.
Do not use the accelerator pedal or depress the accelerator and brake ped-
als at the same time to hold the vehicle on a hill.
When parking the vehicle
Always shift the shift lever to P. Failure to do so may cause the vehicle to
move or the vehicle may accelerate suddenly if the accelerator pedal is
accidentally depressed.
Avoiding damage to vehicle parts
Do not turn the steering wheel fully in either direction and hold it there for
an extended period of time.
Doing so may damage the power steering motor.
When driving over bumps in the road, drive as slowly as possible to avoid
damaging the wheels, underside of the vehicle, etc.
If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the brake pedal to slow down the vehi-
cle.
It may be difficult to control your vehicle.
The vehicle will make abnormal sounds or vibrations.
The vehicle will lean abnormally.
Information on what to do in case of a flat tire (P. 870, 884)
2434-1. Before driving
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
Tire information
Increase the tire inflation pressure to 20.0 kPa (0.2 kgf/cm2 or bar, 3 psi)
greater than the recommended value when towing. (P. 936)
Increase the air pressure of the trailer tires in accordance with the total
trailer weight and according to the values recommended by the manufac-
turer of your trailer.
Trailer lights
Please consult at any authorized dealer or repairer, or another duly qualified
and equipped professional when installing trailer lights, as incorrect instal-
lation may cause damage to the vehicle’s lights. Please take care to comply
with your state’s laws when installing trailer lights.
Check that the turn signal lights and stoplights are operating correctly every
time you hitch up the trailer. Directly wiring up to your vehicle may damage
the electrical system and stop the lights from functioning correctly.
Break-in schedule
Lexus recommends that vehicles fitted with new power train components
should not be used for towing trailers for the first 800 km (500 miles).
Safety checks before towing
Check that the maximum load limit for the towing hitch/bracket hitch ball is
not exceeded. Bear in mind that the coupling weight of the trailer will add
to the load exerted on the vehicle. Also make sure that you will not be tow-
ing a load that exceeds the maximum permissible axle capacity.
Ensure that the trailer load is secure.
Supplementary outside rear view mirrors should be added to the vehicle if
the traffic behind cannot be clearly seen with standard mirrors. Adjust the
extending arms of these mirrors on both sides of the vehicle so that they
always provide maximum visibility of the road behind.
Maintenance
Maintenance must be performed more frequently when using the vehicle
for towing due to the greater weight burden placed on the vehicle compared
to normal driving.
Retighten all bolts securing the hitching ball and bracket after towing for
approximately 1000 km (600 miles).
2814-3. Operating the lights and wipers
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
In the situations below, the system may not be able to correctly detect the
surrounding brightness levels, and may flash or expose nearby pedestrians
to the high beam. Therefore, you should consider turning the high beams on
or off manually rather than relying on the Automatic High Beam system.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or camera sensor is deformed or dirty.
• The camera sensor temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights, tail lights
or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are
changing color, or have are not aimed properly.
• When driving through an area of intermittently changing brightness and
darkness.
• When frequently and repeatedly driving ascending/descending roads, or
roads with rough, bumpy or uneven surfaces (such as stone-paved roads,
gravel tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding
road.
• There is a highly reflective object ahead of the vehicle, such as a sign or
a mirror.
• The back of a vehicle ahead is highly reflective, such as a container on a
truck.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.
• The high beam and low beam are repeatedly being switched between in
an abnormal manner.
• The driver believes that the high beam may be causing problems or dis-
tress to other drivers or pedestrians nearby.
CAUTION
Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, taking care
to observe your surroundings and turning high beam on or off manually if
necessary.