Avoiding 12-Volt Battery Fires Or Explosions; 12-Volt Battery Precautions; After Recharging The 12-Volt Battery - Lexus rx450h Service Manual

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7-2. Steps to take in an emergency
WARNING

Avoiding 12-volt battery fires or explosions

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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
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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
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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
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other.
Do not smoke, use matches, cigarette lighters or allow open flame near the 12-volt
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battery.

12-volt battery precautions

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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
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to allow any battery fluids (acid) to come into contact with skin, clothing or the vehicle
body.
Do not lean over the 12-volt battery.
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In the event that battery fluid comes into contact with the skin or eyes, immediately
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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
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other battery-related parts.
Do not allow children near the 12-volt battery.
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After recharging the 12-volt battery

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Have the 12-volt battery inspected at your 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 exchanging the 12-volt battery
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After exchanging, securely attach the exhaust hose and exhaust hole plug to the
exhaust hole of the exchanged 12-volt battery. If not properly installed, gases (hydro-
gen) may leak into the vehicle interior, and there is the possible danger of the gas ignit-
ing and exploding.
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