2010 Lexus RX 450h User Guide 2 - Page 50

1-3. Opening, closing and locking the doors n Battery-saving function In the following circumstances, the entry function is disabled in order to prevent the vehicle 12-volt battery from discharging and the electronic key battery from depleting. l When the entry function has not been used for 5 days or more l When the electronic key has been left within approximately 6 ft. (2 m) of the 1 vehicle for 10 minutes or more l If the entry function has not been used for 14 days or more, the vehicle cannot Before driving be unlocked by a door other than the driver's door. To unlock the vehicle, grip the driver's door handle or use the wireless remote control or the mechanical key. The system will resume operation when: l The vehicle is locked using the lock sensor. l The vehicle is locked/unlocked using the wireless remote control function. (→P. 57) l The vehicle is locked/unlocked using the mechanical key. (→P. 614) n Conditions affecting operation The smart access system with push-button start uses weak radio waves. In the following situations, the communication between the electronic key and the vehicle may be affected, preventing the smart access system with push-button start, wireless remote control and immobilizer system from operating properly. (Ways of coping: →P. 614) l When the electronic key battery is depleted l Near a TV tower, electric power plant, gas station, radio station, large display, airport or other facility that generates strong radio waves or electrical noise l When carrying a portable radio, cellular phone, cordless phone or other wire- less communication devices l When the electronic key is in contact with, or is covered by the following metal- lic objects Cards to which aluminum foil is attached Cigarette boxes that have aluminum foil inside Metallic wallets or bags Coins Hand warmers made of metal Media such as CDs and DVDs 51