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1-2. Opening, closing and locking the doors
1
Before driving
4RUNNER_U
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, wireless remote control and
immobilizer system from operating properly. (Way of coping →P. 596)
l When the electronic key battery is depleted
l 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
l When carrying a portable radio, mobile phone, cordless phone or other
wireless communication device
l 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
l When multiple electronic keys are in the vicinity
l When other wireless keys (that emit radio waves) are being used nearby
l 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
l If window tint with a metallic content or metallic objects are attached to
the back window
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