light Lexus GS300h 2017 Owner's Manual

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7-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
Indicates that the power switch is turned off or turned to
ACCESSORY mode and the driver’s door is opened
while the lights are turned on
A buzzer also sounds.
 Turn the lights off.
(If equipped)
Indicates that the moon roof is not fully closed (with the
power switch off, and the driver’s door open)
A buzzer also sounds.
 Close the moon roof.
Indicates that the windows are not fully closed (with the
power switch off, and the driver’s door open)
A buzzer also sounds.
 Close all the windows.
(If equipped)
Indicates that the windows and the moon roof are not
fully closed (with the power switch off, and the driver’s
door open) A buzzer also sounds.
 Close all the windows and the moon roof.
Indicates a malfunction in the brake hold system
A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)
(Flashes)

4887-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates that the Automatic High Beam switch was
pressed while the low beams were onTurn the high beam headlights on before pressing
the Automatic High Beam switch.
(If equipped)
Indicates that the Adaptive High-beam System switch
was pressed while th e low beams were on
 Turn the high beam headlights on before pressing
the Adaptive High-beam System switch.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-crash braking and pre-
crash brake assist are stopped (The pre-crash warning
function will be operational) Turn the VSC on. ( P. 327)
(If equipped)
Indicates that the PCS (Pre-Crash Safety system) is tem-
porarily unavailable
A buzzer also sounds.
 When conditions improve, the system resumes
operation. If this item is displayed continuously, have
the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Warning messageDetails/Actions
(Flashes)

5027-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE) Chock the tires.
Slightly loosen the wheel nuts (one
turn).
Turn the tire jack portion “A” by hand
until the notch of the jack is in con-
tact with the jack point.
The jack point guides are located under
the rocker panel. They indicate the jack
point positions.
Replacing a flat tire
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Flat tireWheel chock positions
FrontLeft-hand sideBehind the rear right-hand side tire
Right-hand sideBehind the rear left-hand side tire
RearLeft-hand sideIn front of the front right-hand side tire
Right-hand sideIn front of the front left-hand side tire
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503
7-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE) Raise the vehicle until the tire is
slightly raised off the ground.
Remove all the wheel nuts and the
tire.
When resting the tire on the ground,
place the tire so that the wheel design
faces up to avoid scratching the wheel
surface.
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WARNING
■Replacing a flat tire
●Do not touch the disc wheels or the area around the brakes immediately after the
vehicle has been driven.
After the vehicle has been driven the disc wheels and the area around the brakes will
be extremely hot. Touching these areas with hands, feet or other body parts while
changing a tire, etc. may result in burns.
●Failure to follow these precautions could cause the wheel nuts to loosen and the tire
to fall off, resulting in death or serious injury.

5207-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
■If the tire is inflated to mo re than the recommended level
Disconnect the hose from the valve.
Disconnect the hose from the valve, remove the air release cap from the hose and then
reconnect the hose.
Turn the compressor switch on and wait for se veral seconds, and then turn it off. Check
that the air pressure indicator shows the recommended level. ( P. 555)
If the air pressure is lower than the reco mmended level, turn the compressor switch on
again and repeat the inflation procedure un til the recommended pressure is reached.
■After a tire is repaired with the emergency tire puncture repair kit
●The tire pressure warning valve an d transmitter should be replaced.
●Vehicles with the tire pressure warning system: Even if the tire inflation pressure is at the
recommended level, the tire pressure warning light may come on/flash.
■Note for checking the emergency tire puncture repair kit
Check the sealant expiry date occasionally.
The expiry date is shown on the bottle.
Do not use sealant whose expiry date has already passed. Otherwise, repairs conducted
using the emergency tire puncture repair kit may not be performed properly.Install the air release cap to the end of the
hose and push the protrusion on the air
release cap into the tire valve to let some air
out.
WARNING
■Caution while driving
Observe the following precautions.
Failure to do so may cause an accident.
●The emergency tire puncture repair kit is made exclusively for your vehicle. Do not
use it on other vehicles.
●Do not use the emergency tire puncture repair kit for tires that are a different size
than the specified ones or fo
r any other purpose. Doing so may cause the tires to not
be repaired properly.
■Precautions for use of the sealant
●Ingesting the sealant is hazardous to your health. If you ingest sealant, consume as
much water as possible, and then immediately consult a doctor.
●If sealant gets in eyes or adheres to skin, i mmediately wash it off with water. If discom-
fort persists, consult a doctor.
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523
7
7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
If the hybrid system will not start
One of the following may be the cause of the problem: ●The electronic key may not be functioning properly. ( P. 528)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● There may be a malfunction in the immobilizer system. ( P. 85)
● There may be a malfunction in the steering lock system.
● The hybrid system may be malfunctioning due to an electrical problem such
as electronic key battery depletion or a blown fuse. However, depending on
the type of malfunction, an interim measure is available to start the hybrid sys-
tem. ( P. 524)
One of the following may be the cause of the problem: ● The 12-volt battery may be discharged. ( P. 530)
● The 12-volt battery terminal connections may be loose or corroded. ( P. 412)
One of the following may be the cause of the problem: ● The 12-volt battery may be discharged. ( P. 530)
● One or both of the 12-volt battery terminals may be disconnected. ( P. 412)
Contact any authorized Lexus retailer or Le xus authorized repairer, or any reliable
repairer if the problem cannot be repaired , or if repair procedures are unknown.
Reasons for the hybrid system not starting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting proce-
dure is being followed. ( P. 217)
The interior lights and headlights are dim, or the horn does not sound or
sounds at a low volume.
The interior lights and he adlights do not turn on, or the horn does not
sound.

5327-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE) Connect a positive jumper cable clamp to the exclusive jump starting ter-
minal on your vehicle.
Connect the clamp on the other end of the positive cable to the positive (+)
battery terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery terminal on the
second vehicle.
Connect the clamp at the other end of the negative cable to a solid, station-
ary, unpainted metallic point away from the exclusive jump starting terminal
and any moving parts, as shown in the illustration.
Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximately 5 minutes to recharge the 12-volt bat-
tery of your vehicle.
Open and close any of the doors of your vehicle with the power switch off.
Maintain the engine speed of the second vehicle and start the hybrid system
of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator come s on. If the indicator does not come
on, contact any authorized Lexus retailer or Lexus authorized repairer, or any
reliable repairer.
Once the hybrid system has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the hybrid system starts, have the vehicle inspected at any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer as soon as
possible.
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533
7-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical componen ts when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and the draining effects of certain electrical appli-
ances. If the vehicle is left for a long time, the 12-volt battery may discharge, and the
hybrid system may be unable to start. (The 12-volt battery recharges automatically while
the hybrid system is operating.)
■When recharging or replacing the 12-volt battery
●In some cases, it may not be possible to unlock the doors using the smart entry & start
system when the 12-volt battery is discharged. Use the wireless remote control or the
mechanical key to lock or unlock the doors.
●The hybrid system may not start on the first attempt after the 12-volt battery has
recharged but will start normally after the second attempt. This is not a malfunction.
●The power switch mode is memorized by the vehicle. When the 12-volt battery is
reconnected, the system will return to the mode it was in before the 12-volt battery was
discharged. Before disconnecting the 12-v olt battery, turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt battery dis-
charged, be especially careful when reconnecting the 12-volt battery.
WARNING
■Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable gas
that may be emitted from the 12-volt battery:
●Make sure each jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cable connected to the “+” terminal to come
into contact with any other parts or metal surfaces in the area, such as brackets or
unpainted metal.
●Do not allow the + and - clamps of the jumper cables to come into contact with each
other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the 12-volt
battery.

553
8
8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)*
: The fluid capacity is the quantity of reference.
If replacement is necessary, contact any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
Electrical system
12-volt battery
Open voltage at 20 C (68 F):12.0 V or higher
(Voltage is checked 20 minutes after the
hybrid system and all lights are turned off.)
Charging rates5 A max.
Hybrid transmission
Fluid capacity *GS450h5.69 L (6.01 qt., 5.01 Imp.qt.)
GS300h3.80 L (4.02 qt., 3.34 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than “Toyot a Genuine ATF WS” may cause deterioration
in shift quality and ultimately damage the transmission of your vehicle.

5548-1. Specifications
GS450h_300h_OM_OM30F92E_(EE) Your Lexus vehicle is filled with “Toyota Ge
nuine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differentia l Gear Oil” or an equivalent of match-
ing quality to satisfy the above specification. Please contact any authorized Lexus retailer
or Lexus authorized repairer, or any reliable repairer for further details.
* : Minimum pedal clearance when depressed with a force of 500 N (51.0 kgf, 112.4 lbf)
while the hybrid system is operating.
When performing the brake pedal inspection , also be sure to check that the brake
system warning light is not illuminated when the hybrid system is operating (If the
brake system warning light is illuminated, refer to P. 460).
Differential
Oil capacity1.35 L (1.43 qt., 1.19 Imp.qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
Brakes
Pedal clearance *115 mm (4.5 in.) Min.
Pedal free play1.0 — 6.0 mm (0.04 — 0.24 in.)
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3,
SAE J1704 or FMVSS No. 116 DOT 4
Steering
Free playLess than 30 mm (1.2 in.)