2013 Lexus ES 300 Owners Manual - Page 780

7-2. Steps to take in an emergency

ES350 300h_OM_OM33A01U_(U)

7

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When recharging or replacing the 12-volt battery

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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.

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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.

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The engine 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.

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The “START STOP ENGINE” 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 “START STOP ENGINE” switch off.

If you are unsure what mode the “START STOP ENGINE” switch was in before the

12-volt battery discharged, be especially careful when reconnecting the 12-volt

battery.

CAUTION

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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:

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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.

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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.

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Do not allow the + and - clamps of the jumper cables to come into contact with

each other.

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

volt battery.