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9-3. If the engine will not start
INFORMATION
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When the battery is removed or discharged
In some cases, it may not be possible to unlock the doors using the smart access
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system with push-button start after the battery has been replaced.
Use the wireless remote control or the mechanical key to lock or unlock the doors.
If the engine cannot be started the first time the engine switch is pressed after
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removing and installing the battery, touch the Lexus emblem side of the electronic key
to the engine switch to start the engine.
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The engine switch mode is memorized by the vehicle.
After the battery has been recharged or replaced, the engine switch will return to the
mode it was in before it was discharged or removed.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery was dis-
charged, be especially careful when reconnecting the battery.
Some systems may require initialization.
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The Stop & Start system may not automatically stop the engine for up to an hour.
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To prevent battery discharge
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Turn off the headlights and the audio system while the engine is off.
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Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
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If the vehicle battery is discharged
The doors cannot be locked or unlocked using the smart entry & start system or
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wireless remote control, and the door opener switches will not operate. Use the me-
chanical key to enable/disable manual release handle operation. By enabling manual
release handle operation, the door can be opened.
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Information recorded by various computers will be cleared.
If the battery has become discharged, have the vehicle inspected by your Lexus dealer.
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Some systems may require initialization.
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Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharge and the draining effects of certain electrical appliances.
If the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start.
(The battery recharges automatically during driving.)
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