Toyota Prius, Manual

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1-4. Opening, closing and locking the doors
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PRIUS PHV_OM_OM47831E_(EE)
 Conditions affecting operation
The smart entry & start system, wireless remote control and immobilizer sys-
tem use weak radio waves. In the following situations, the communication
between the electronic key and the vehicle may be affected, preventing the
smart entry & start system, wireless remote control and immobilizer system
from operating properly. (Ways of coping:

P. 616)
 When the electronic key battery is depleted
 Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electri-
cal noise
 When carrying a portable radio, cellular phone, cordless phone or other
wireless communication devices
 When the electronic key is in contact with, or is covered by the following
metallic 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
 When other wireless key (that emit radio waves) is being used nearby
 When carrying the electronic key together with the following devices that
emit radio waves
• Another vehicle’s electronic key or a wireless key that emits radio
waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
 If window tint with a metallic content or metallic objects are attached to
the rear window