Lexus 2014 LX570 Owner's Manual page 41

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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...
The vehicle is locked using the door handle lock switch.
The vehicle is locked/unlocked using the wireless remote control function
(P. 48) or the mechanical key. (P. 867)
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.)
If the battery becomes low, an alarm will sound in the cabin when the engine
stops. (P. 43)
The battery becomes depleted even if the electronic key is not used because
the key always receives 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. 780)
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
• Induction cookers
• Table lamps
LX570_OM_OM60L21U_(U)
1-2. Opening, closing and locking the doors
1
41

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