753
6 6-3. Do-it-yourself maintenance
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
Emergency measures regarding electrolyte
If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical 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
attention 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
immediately.
When replacing the 12-volt battery
Use a 12-volt battery designed for this vehicle. Failure to do so may cause
gas (hydrogen) to enter the passenger compartment, causing a fire or explo-
sion.
For replacement of the 12-volt battery, contact any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
NOTICE
When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating.
Also, be sure all accessories are turned off.
9348-1. Specifications
GS450h_300h_OM_OM30D53E_(EE)
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Electrical system
12-volt battery
Open voltage at 20C (68F):12.5 V or higher: Fully charged
11.0 — 12.4 V: Half charged
10.9 V or lower: Discharged
(Voltage is checked 20 minutes after
the hybrid system and all lights are
turned off.)
Charging rates4 — 5 A
Hybrid transmission
Fluid capacity*GS300h3.80 L (4.02 qt., 3.34 Imp.qt.)
GS450h5.69 L (6.01 qt., 5.01 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
Hybrid transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of your transmission accompanied
by vibration, and ultimately damage the transmission of your vehicle.