Lexus LX 570 2009 Manual page 683

Starting the engine when the battery is discharged
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The engine cannot be started by push-starting.
Avoiding a discharged battery
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Turn off the headlights and the audio system while the engine is turned off.
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Turn off any unnecessary electrical components when the vehicle is running at a
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low speed for an extended period, such as in heavy traffic, etc.
CAUTION
Avoiding 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 battery.
Make sure the jumper cable is connected to the correct terminal and that it is not
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unintentionally in contact with any part other than the intended terminal.
Do not allow the jumper cables to come into contact with the "+" and "-" termi-
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nals.
Do not allow open flame or use matches, cigarette lighters or smoke near the
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battery.
5-2. Steps to take in an emergency
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