Toyota Corolla Hatchback 2023 Manual page 104

104
3-2. Opening, closing and locking the doors
remote control or mechanical key
to unlock the doors.
■ Electronic key battery-saving
function
● When battery-saving mode is set,
battery depletion is minimized by
stopping the electronic key from
receiving radio waves.
Press twice while pressing and
holding . Confirm that the elec-
tronic key indicator flashes 4 times.
While the battery-saving mode is
set, the smart key system cannot be
used. To cancel the function, press
any of the electronic key buttons.
● Electronic keys that will not be
used for long periods of time can
be set to the battery-saving mode
in advance.
■ Conditions affecting operation
The smart key 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 key system, wireless remote
control and engine immobilizer sys-
tem from operating properly.
● When the electronic key battery is
depleted
● Near a TV tower, electric power
plant, gas station, radio station,
large display, airport or other facil-
ity that generates strong radio
waves or electrical noise
● When carrying a portable radio,
cellular phone, cordless phone or
other wireless communication
device
● When the electronic key is in con-
tact with, or is covered by the fol-
lowing metallic objects
• Cards to which aluminum foil is
attached
• Cigarette boxes that have alumi-
num 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 con-
tent or metallic objects are
attached to the rear window
● When the electronic key is placed
near a battery charger or elec-
tronic devices
● When the vehicle is parked in a
pay parking spot where radio
waves are emitted
If the doors cannot be
locked/unlocked using the smart key
system, lock/unlock the doors by
performing any of the following:
● Bring the electronic key close to
either front door handle and oper-
ate the entry function.
● Operate the wireless remote con-
trol.
If the doors cannot be
locked/unlocked using the above
methods, use the mechanical key.
(P.356)
If the engine cannot be started using
the smart key system, refer to
P.357.