2010 Toyota Highlander Owners Manual - Page 499

4-3. Do-it-yourself maintenance n If the electronic key battery is discharged The following symptoms may occur. l The smart key system and wireless remote control will not function properly. l The operational range is reduced. n Use a CR2032 (vehicles without smart key system) or CR1632 (vehicles with smart key system) lithium battery l Batteries can be purchased at your Toyota dealer, jewelers, or camera stores. l Replace only with the same or equivalent type recommended by your Toyota dealer. l Dispose of used batteries according to the local laws. 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. 474