Key Battery Depletion; Confirmation Of The Registered Key Number; If A Wrong Key Is Used - Toyota 2016 Highlander Service Manual

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3-1. Key information
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Key battery depletion


Vehicles without a smart key system
If the wireless remote control function does not operate, the battery may be
depleted. Replace the battery when necessary. (P. 538)

Vehicles with a smart key system
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The standard battery life is 1 to 2 years.
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If the battery becomes low, an alarm will sound in the cabin when the engine
stops. (P. 593)
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As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. (P. 538)
• The smart key system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
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To avoid serious deterioration, do not leave the electronic key within 3 ft. (1
m) of the following electrical appliances that produce a magnetic field:
• TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
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When the key battery is fully depleted
P. 538
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Confirmation of the registered key number (vehicles with a smart key
system)
The number of electronic keys already registered to the vehicle can be con-
firmed. Ask your Toyota dealer for details.
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If a wrong key is used (vehicles with a smart key system)
The key cylinder rotates freely to isolate inside mechanism.
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Customization
Settings (e.g. wireless remote control system) can be changed.
(Customizable features: P. 668)
HIGHLANDER_U (OM48F09U)