charging Lexus GS300h 2017 User Guide

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.

5347-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■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 precautions when han-
dling 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 (acid) to come into contact with skin, clothing 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, immedi-
ately 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 the 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 any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer 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. 414
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in the
cooling fans or belt.
■To prevent damaging the vehicle
The exclusive jump starting terminal is to be used when charging the 12-volt battery
from another vehicle in an emergency. It cannot be used to jump start another vehicle.

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.

599
Alphabetical index
GS450h_300h_OM_OM30F92E_(EE) Warning lights........................................... 99
ABS.............................................................461
AFS OFF indicator............................ 462
Brake hold operated
indicator .............................................. 462
Brake system .......................... 460, 462
Charging system .............................. 460
Electric power steering
system ....................................................461
Low fuel level ....................................... 462
Malfunction indicator lamp .......... 460
Master warning light ........................ 462
Parking brake indicator .................. 462
Pre-Crash Safety system .................461
Seat belt reminder light................... 462
Slip indicator...........................................461
SRS........................................................... 460
Tire pressure ........................................ 463
Warning messages .............................. 466
Warning reflector storage belt ....... 376
Washer....................................................... 251 Checking .................................................. 411
Low washer fluid warning message..............................................466
Preparing and checking before winter .................................... 334
Switch ........................................................251 Washing and waxing........................... 390
Weight ...................................................... 546
Welcome light illumination
control..................................................... 140
Wheels........................................................431 Replacing................................................. 431
Size ...........................................................555
Window glasses ......................................193
Window lock switch ..............................193
Windows ....................................................193
Power windows ................................... 193
Rear window defogger .................. 352
Washer ..................................................... 251
Windshield wiper de-icer ................. 352
Windshield wipers .................................251 Intermittent windshield wipers
with interval adjuster ...................... 251
Position ....................................................337
Rain-sensing windshield wipers .................................................. 253
Winter driving tips ............................... 334
Wireless remote control key .............134 Battery-saving function ....................155
Locking/Unlocking ............................ 134
Replacing the battery ...................... 435
WMA disc *
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.