To Operate The System Properly; If The Smart Entry & Start System Does Not Operate Properly; Electronic Key Battery Depletion - Toyota Land Cruiser Prado Owner's Manual

1-2. Opening, closing and locking the doors
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To operate the system properly

Make sure to carry the electronic key when operating the system. Do not get
the electronic key too close to the vehicle when operating the system from
the outside of the vehicle.
Depending on the position and holding condition of the electronic key, the
key may not be detected correctly and the system may not operate properly.
(The alarm may go off accidentally, or the door lock prevention may not func-
tion.)
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If the smart entry & start system does not operate properly
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Locking and unlocking the doors: Use the mechanical key. (→P. 596)
Starting the engine: →P. 597
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Electronic key battery depletion

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The standard battery life is 1 to 2 years.
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If the battery becomes low, an alarm will sound in the cabin when the
engine stops. (→P. 35)
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As the electronic key always receives radio waves, the battery will
become depleted even if the electronic key is not used. The following
symptoms indicate that the electronic key battery may be depleted.
Replace the battery when necessary. (→P. 501)
• The smart entry & start system or the wireless remote control does not
operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
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To avoid serious deterioration, do not leave the electronic key within 1 m
(3 ft.) of the following electrical appliances that produce a magnetic field:
• TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Induction cookers
• Table lamps
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