2010 Lexus IS 250 Owners Manual - Page 115

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1-2. Opening, closing and locking the doors and trunk

■

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 a month 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. 40)

●

The vehicle is locked/unlocked using the mechanical key. (

→

P. 507)

■

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. 488)

●

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 does not operate, or the detection area

becomes smaller, the battery may be depleted. Replace the battery when nec-

essary. (

→

P. 431)

●

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