2009 Toyota Prius Owners Manual - Page 73

OM47614U_PRIUS_U.book Page 42 Monday, January 11, 2010 11:02 AM 1-3. Opening, closing and locking the doors and back door n Operation signals A buzzer sounds and the emergency flashers flash to indicate that the doors have been locked/unlocked. (Locked: Once; Unlocked: Twice) n Conditions affecting operation The smart key system uses weak radio waves. In the following situations, the communication between the electronic key and the vehicle may be affected, preventing the smart key system and wireless remote control from operating properly. (Way of coping: P. 448) 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 wireless communication devices l When the electronic key has come into contact with, or is covered by a metallic object l When multiple electronic keys are in the vicinity l When carrying or using the electronic key together with the following devices that emit radio waves • Another vehicle's electronic key • A wireless key that emits radio waves • Personal computer l If window tint with a metallic content or metallic objects are attached to the rear window 42 PRIUS_U_(OM47614U)