3
3-1. Key information
Before driving
sound in the cabin when the engine stops.
O To reduce key battery depletion when
the electronic key is to not be used for
long periods of time, set the electronic
key to the battery-saving mode.
(oP.163)
O As the electronic key always receives
radio waves, the battery will become
depleted even if the electronic key is not
used. The following symptoms indicate
that the electronic key battery may be
depleted. Replace the battery when nec-
essary.
• The smart entry & start system or the
wireless remote control does not oper-
ate.
• The detection area becomes smaller.
• The LED indicator on the key surface
does not turn on.
O You can replace the battery by yourself
(oP.563). However, as there is a dan-
ger that the electronic key may be dam-
aged, it is recommended that
replacement is carried out by your Lexus
dealer.
O To avoid serious deterioration, do not
leave the electronic key within 1 m (3 ft.)
of the following electrical appliances that
produce a magnetic field:
•TVs
•Personal computers
• Recharging cellular phones or cordless
phones
• Table lamps
• Induction cookers
O If the electronic key is near the vehicle for
longer than necessary, even if the smart
entry & start system is not used, the key
battery may become depleted faster than
normal. When not using the smart entry
& start system, it is recommended not to
stay with the electronic key near the vehi-
cle longer than necessary.
Q Replacing the key battery
oP.563
Q Confirmation of the registered key
number
The number of keys already registered to
the vehicle can be confirmed. Ask your
Lexus dealer.
Q If “A New Key has been Registered
Contact Your Dealer for Details” is
shown on the multi-information display
This message will be displayed each time
the driver’s door is opened when the doors
are unlocked from the outside for approxi-
mately 10 days after a new electronic key
has been registered.
If this message is displayed but you have not
had a new electronic key registered, ask
your Lexus dealer to check if an unknown
electronic key (other than those in your
possession) has been registered.
Q To prevent key damage
O Do not drop the keys, subject them to
strong shocks or bend them.
O Do not expose the keys to high tem-
peratures for long periods of time.
O Do not get the keys wet or wash them
in an ultrasonic washer, etc.
O Do not attach metallic or magnetic
materials to the keys or place the keys
close to such materials.
O Do not disassemble the keys.
O Do not attach a sticker or anything else
to the surface of the electronic key.
O Do not place the keys near objects that
produce magnetic fields, such as TVs,
audio systems and induction cookers.
O Do not place the keys near medical
electrical equipment such as low-fre-
quency therapy equipment or micro-
wave therapy equipment, and do not
receive medical attention with the keys
on your person.
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