2013 Lexus GS300h Owner's Manual

881-2. Hybrid system
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
Road accident cautions
Observe the following precautions to reduce the risk of death or serious
injury:
Pull your vehicle off the road, apply the parking brake, shift the shift lever
to P, and turn the hybrid system off.
Do not touch the high voltage parts, cables and connectors.
If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
If a fluid leak occurs, do not touch the fluid as it may be strong alkaline
electrolyte from the hybrid battery (traction battery). If it comes into con-
tact with your skin or eyes, wash it off immediately with a large amount of
water or, if possible, boric acid solution. Seek immediate medical atten-
tion.
If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.
Never use a fire extinguisher that is not meant for electric fires. Using
even a small amount of water may be dangerous.
If your vehicle needs to be towed, do so with rear wheels raised. If the
wheels connected to the electric motor (traction motor) are on the ground
when towing, the motor may continue to generate electricity. This may
cause an electricity leakage leading to a fire. (P. 822)
Carefully inspect the ground under the vehicle. If you find that liquid has
leaked onto the ground, the fuel system may have been damaged. Leave
the vehicle as soon as possible.

891-2. Hybrid system
1
GS450h_300h_OM_OM30D53E_(EE)
For safety and security
CAUTION
Hybrid battery (traction battery)
Your vehicle contains a sealed nickel-metal hydride battery. Never resell,
hand over or modify the hybrid battery. To prevent accidents, hybrid bat-
teries that have been removed from a disposed vehicle are collected
through any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional. Do not dispose of the battery yourself.
Unless the battery is properly collected, the following may occur, result-
ing in death or serious injury:
• The hybrid battery may be illegally disposed of or dumped, and some-
one may touch a high voltage part, resulting in an electric shock.
• The hybrid battery is intended to be used exclusively with your hybrid
vehicle. If the hybrid battery is used outside of your vehicle or modified
in any way, accidents such as electric shock, heat generation, smoke
generation, an explosion and electrolyte leakage may occur.
When reselling or handing over your vehicle, the possibility of an acci-
dent is extremely high because the person receiving the vehicle may not
be aware of these dangers.
If your vehicle is disposed of without the hybrid battery having been
removed, there is a danger of serious electric shock if high voltage parts,
cables and their connectors are touched. In the event that your vehicle
must be disposed of, the hybrid battery must be disposed of by any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional. If the hybrid battery is not disposed of properly, it may cause
electric shock that can result in death or serious injury.

901-2. Hybrid system
GS450h_300h_OM_OM30D53E_(EE)
NOTICE
Hybrid battery air vents
Do not put foreign objects near the air vents. The hybrid battery (traction
battery) may overheat and be damaged.
Clean the air vents regularly to prevent the hybrid battery (traction bat-
tery) from overheating.
Do not wet or allow foreign substances to enter the air vents as this may
cause a short circuit and damage the hybrid battery (traction battery).
Do not carry large amounts of water such as water cooler bottles in the
vehicle. If water spills onto the hybrid battery (traction battery), the bat-
tery may be damaged. Have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.

91
1 1-3. Theft deterrent system
GS450h_300h_OM_OM30D53E_(EE)
For safety and security
Immobilizer system
The indicator light flashes after
the power switch has been turned
off to indicate that the system is
operating.
The indicator light stops flashing
after the power switch has been
turned to ACCESSORY or ON
mode to indicate that the system
has been canceled.
System maintenance
The vehicle has a maintenance-free type immobilizer system.
Conditions that may cause the system to malfunction
If the grip portion of the key is in contact with a metallic object
If the key is in close proximity to or touching a key to the security system
(key with a built-in transponder chip) of another vehicle
The vehicle’s keys have built-in transponder chips that prevent the
hybrid system from starting if a key has not been previously regis-
tered in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prevent vehicle theft but does not
guarantee absolute security against all vehicle thefts.

921-3. Theft deterrent system
GS450h_300h_OM_OM30D53E_(EE)
Certifications for the immobilizer system

931-3. Theft deterrent system
1
GS450h_300h_OM_OM30D53E_(EE)
For safety and security

941-3. Theft deterrent system
GS450h_300h_OM_OM30D53E_(EE)

951-3. Theft deterrent system
1
GS450h_300h_OM_OM30D53E_(EE)
For safety and security
NOTICE
To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.