Lexus ES350 Manual page 696

After recharging/reconnecting the 12-volt battery
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The engine may not start. Follow the procedure below to initialize the system.
Shift the shift lever to P.
1
Open and close any of the doors.
2
Restart the engine.
3
Unlocking the doors using the smart access system with push-button start may not
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be possible immediately after reconnecting the 12-volt battery. If this happens, use
the wireless remote control or the mechanical key to lock/unlock the doors.
Start the engine with the "START STOP ENGINE" switch in ACCESSORY mode.
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The engine may not start with the "START STOP ENGINE" switch turned off. How-
ever, the engine will operate normally from the second attempt.
The "START STOP ENGINE" switch mode is recorded by the vehicle. If the 12-volt
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battery is reconnected, the vehicle will return the "START STOP ENGINE" switch
mode to the status it was in before the 12-volt battery was disconnected. Make sure
to turn off the engine before disconnect the 12-volt battery. Take extra care when
connecting the 12-volt battery if the "START STOP ENGINE" switch mode prior to
discharge is unknown.
If the engine will not start even after multiple attempts, contact your Lexus dealer.
CAUTION
Chemicals in the 12-volt battery
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Batteries contain poisonous and corrosive sulfuric acid and may produce hydro-
gen gas which is flammable and explosive. To reduce the risk of death or serious
injury, take the following precautions while working on or near the 12-volt battery:
Do not cause sparks by touching the 12-volt battery terminals with tools.
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Do not smoke or light a match near the 12-volt battery.
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Avoid contact with eyes, skin and clothes.
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Never inhale or swallow electrolyte.
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Wear protective safety glasses when working near the 12-volt battery.
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Keep children away from the 12-volt battery.
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ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
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