Toyota Corolla Instruction Manual page 121

 Conditions affecting operation
The smart entry & start system uses weak radio waves. In the following situa-
tions, 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. 570)
 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 electrical
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 keys (that emit radio waves) are 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
 When the electronic key is placed near a battery charger or electronic
devices
Corolla_TMMT_EE (OM12F04E)
3-2. Opening, closing and locking the doors
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