2013 Lexus GS450h charging

GS450h_U (OM30D01U)
6496-3. Do-it-yourself maintenance
6
Maintenance and care
CAUTION
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may pro-
duce hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near the 12-
volt battery:
●Do not cause sparks by touching the 12-volt battery terminals with tools.
●Do not smoke or light a match near the 12-volt battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when working near the 12-volt battery.
●Keep children away from the 12-volt battery.
■Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-volt bat-
tery in a garage or closed room wh ere there is insufficient ventilation.
■How to recharge the 12-volt battery
Observe the following precautions when re charging the 12-volt battery. Failure to
do so may damage the 12 -volt battery and cause de ath or serious injury.
●Slow charge: Recharge at a current of 5 A or less and make sure that the
recharging period does not exceed a total of 12 hours.
●Quick charge: Recharge at a current of 15 A or less and make sure that the
recharging period does not exceed 60 minutes.

650
GS450h_U (OM30D01U)
6-3. Do-it-yourself maintenance
CAUTION
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immediate medi-
cal attention. If possible, continue to apply water with a sponge or cloth while
traveling to the nearest medical facility.
●If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical atten-
tion immediately.
●If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the clothing and
follow the procedure above if necessary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk . Get emergency medical attention imme-
diately.
■When replacing the 12-volt battery
Use a 12-volt battery designed for this ve hicle. Failure to do so may cause gas
(hydrogen) to enter the passenger compartment, causing a fire or explosion.
For replacement of the 12-volt battery, contact your Lexus dealer.
NOTICE
■When recharging the 12-volt battery
Never recharge the 12-volt battery while th e hybrid system is operating. Also, be
sure all accessories are turned off.

7127-2. Steps to take in an emergency
GS450h_U (OM30D01U)The following warning indicates the po
ssibility of damage to the vehicle
that may lead to an acc ident. Immediately stop th e vehicle in a safe place
and contact your Lexus dealer.
Failure to investigate the cause of th e following warnings may lead to the
system operating abnormally and possib ly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
Stop the vehicl e immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic hybrid transmission control system
SRS warning lightIndicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
•The ABS; or
• The brake assist system
Electric power steering system warning lightIndicates a malfunction in the EPS (Electric Power Steering)
system

7717-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that le vel for approximately 5 minutes to
recharge the 12-volt battery of your vehicle.
Open and close any of th e doors of your vehicle with the power switch
off.
Maintain the engine speed of the se cond vehicle and start the hybrid
system of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator co mes on. If the indicator does not
come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables in the
exact reverse order from wh ich they were connected.
Once the hybrid system starts, have the vehicle inspected at your Lexus
dealer as soon as possible.
■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 compon ents 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 elec-
trical appliances. If the vehicle is left for a long time, the 12-volt battery may dis-
charge, and the hybrid system may be unable to start. (The 12-volt battery recharges
automatically while the hybrid system is operating.)
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4
5
6
7

7727-2. Steps to take in an emergency
GS450h_U (OM30D01U)
■When recharging or replacing the 12-volt battery
●Make sure the key is not inside the vehicle when recharging or replacing the 12-volt
battery to prevent the doors from being locked with the key left inside the vehicle
when the alarm operates.
●In some cases, it may not be possible to unlock the doors using the smart access
system with push-button start when the 12-volt battery is discharged. Use the wire-
less remote control or the mechanical key to lock or unlock the doors.
●The hybrid system may not start on the fir st 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 -volt 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.
CAUTION
■Avoiding 12-volt battery fires or explosions
Observe the following precautions to prev ent 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.

7737-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
CAUTION
■12-volt battery precautions
The 12-volt battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following precau-
tions when handling the 12-volt battery:
●When working with the 12-volt battery, always wear safety glasses and take care
not to allow any 12-volt battery fluids (aci d) to come into contact with skin, cloth-
ing or the vehicle body.
●Do not lean over the 12-volt battery.
●In the event that 12-volt battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling th e 12-volt battery support, terminals, and
other battery-related parts.
●Do not allow children near the 12-volt battery.
■After recharging the 12-volt battery
Have the 12-volt battery inspected at yo ur Lexus dealer as soon as possible.
If the 12-volt battery is deteriorating, continued use may cause the 12-volt battery
to emit a malodorous gas, which may be detrimental to the health of passengers.
■When replacing the 12-volt battery
P. 6 5 0

788
GS450h_U (OM30D01U)
8-1. Specifications
*: The fluid capacity is the quantity of reference.If replacement is necessary, contact your Lexus dealer.
Electrical system
12-volt battery
Open voltage at 68 F
(20 C):12.6  12.8 V Fully charged
12.2
 12.4 V Half charged
11.8  12.0 V Discharged
(Voltage is checked 20 minutes after the hybrid sys-
tem and all lights are turned off.)
Charging rates
Quick charge
Slow charge15 A max.
5 A max.
Hybrid transmission
Fluid capacity*6.01 qt. (5.69 L, 5.01 Imp.qt.)
Fluid typeTo y o t a G e n u i n e AT F W S
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterio-
ration in shift quality, locking up of yo ur transmission accompanied by vibration,
and ultimately damage the tr ansmission of your vehicle.

857Alphabetical index
GS450h_U (OM30D01U)
USB port ....................................... 477, 487
Utility hook .............................................. 599
Vanity lightsVanity lights ......................................... 583
Wattage ....................................................791
Vanity mirrors ........................................... 583
VDIM (Vehicle Dynamics Integrated Management) .............. 290
Vehicle data recordings .........................10
Vehicle Dynamics Integrated Management (VDIM) ..................... 290
Vehicle identification number ......... 783
Vehicle proximity notification system ......................................................... 71
Vehicle Stability Control (VSC) ..................................................... 289
Ventilators (seat ventilators)............. 591
Voice command system .................... 353
VSC (Vehicle Stability Control) ............ 289 Warning buzzers
Approach warning ........................... 242
Brake system ...........................................711
Downshifting ........................................ 203
Intuitive parking assist........................ 261
Key reminder ....................................... 744
No-handed driving warning........ 256
Open door ........................................... 728
Open moon roof ............................... 729
Open hood........................................... 728
Open trunk ........................................... 729
Open window ..................................... 729
Pre-collision braking........................ 296
Seat belt reminder............................... 714
Warning lights .......................................... 85 ABS ............................................................ 712
AFS OFF indicator ............................. 713
Brake hold operated indicator ................................................ 713
Brake system .................................711, 714
Charging system ................................. 712
Electric power steering .................... 712
Low fuel level ......................................... 714
Malfunction indicator lamp............. 712
Master warning light .......................... 714
Open door ............................................. 714
Parking brake indicator .................... 713
Pre-collision system ........................... 713
Seat belt reminder light .................... 714
Slip indicator .......................................... 713
SRS.............................................................. 712
Tire pressure .......................................... 715
Warning messages................................ 721
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