Lexus LX 570 2009, Manual

Page: 36 / 740

36
1-2. Opening, closing and locking the doors
LX570_U (OM60D99U)
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Battery-saving function
In the following circumstances, the entry function is disabled in order to prevent the
vehicle and electronic key batteries from discharging.
●
When the entry function has not been used for 2 weeks or more
●
When the electronic key has been left within approximately 3 ft. (1 m) of the
vehicle for 10 minutes or more
The system will resume operation when...
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The vehicle is locked using the door handle lock switch.
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The vehicle is locked/unlocked using the wireless remote control function

(

P. 44) or the mechanical key. (

P. 678)
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Electronic key battery depletion
●
The standard battery life is 1 to 2 years.

(The card key battery life is about a year and a half.)
●
The battery becomes depleted even if the electronic key is not used because
the key always transmits radio waves. If the smart access system with push-but-
ton start or the wireless remote control function does not operate, or the detec-
tion area becomes smaller, the battery may be depleted. Replace the battery
when necessary. (

P. 605)
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To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) 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
• Glass top ranges
• Table lamps