Lexus IS250 2006 Owner's Manual page 28

1-2. Opening, closing and locking the doors and trunk
Electronic key battery depletion
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The standard battery life is 1 to 2 years. (The battery becomes depleted even if
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the electronic key is not used.) If the smart access system with push-button start
or the wireless remote control function does not operate, or the detection area
becomes smaller, the battery may be depleted. Replace the battery when nec-
essary. ( P. 297)
To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) of
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the following electrical appliances.
• TVs
• Personal computers
• Recharging cellular phones or cordless phones
• Table lamps
To operate the system properly
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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 function.)
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