2011 Lexus HS 250h Owners Manual - Page 53

1-3. Opening, closing and locking the doors 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 operate.) n If the smart access system with push-button start does not operate properly l Locking and unlocking the doors, unlocking the trunk: Use the mechanical key. 1 (→P. 540) l Starting the hybrid system: →P. 541 n Electronic key battery depletion l The standard battery life is 1 to 2 years. (The card key battery life is about a year Before driving and a half.) l If the battery becomes low, an alarm will sound in the cabin when the hybrid sys- tem stops. (→P. 49) l As the electronic key always transmits 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. 459) • The smart access system with push-button start or the wireless remote control does not operate. • The detection area becomes smaller. • The LED indicator on the key surface does not turn on. l 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 n When the electronic key battery is fully depleted →P. 459 n Customization Settings (e.g. smart access system with push-button start) can be changed. (Customizable features →P. 580) 53