2009 Lexus IS 350 Owners Manual - Page 344

4-3. Do-it-yourself maintenance n If the electronic key battery is discharged The following symptoms may occur. l The smart access system with push-button start and wireless remote control will not function properly. l The operational range is reduced. n Use a CR1632 lithium battery l Batteries can be purchased at your Lexus dealer, jewelers, or camera stores. l Replace only with the same or equivalent type recommended by a Lexus dealer. l Dispose of used batteries according to the local laws. n When the card key battery needs to be replaced (if equipped) The battery for the card key is available only at Lexus dealers. Your Lexus dealer can replace the battery for you. CAUTION n Removed battery and other parts Keep away from children. These parts are small and if swallowed by a child they can cause choking. NOTICE n For normal operation after replacing the battery Observe the following precautions to prevent accidents. l Always work with dry hands. Moisture may cause the battery to rust. l Do not touch or move any other components inside the remote control. l Do not bend either of the battery terminals. 346