Electronic Key Battery - Toyota Highlander Hybrid 2022 Manual

6 ■ MAINTENANCE AND CARE
6-3. Do-it-yourself maintenance
NOTICE
When cleaning the air intake vent
When cleaning the air intake vent, make
sure to only use a vacuum to suck out
dust and clogs. If a compressed air blow
gun, etc. is used to blow out dust and
clogs, the dust or clogs may be pushed
into the air intake vent, which may affect
the performance of the hybrid battery
(traction battery) and cause a
malfunction.
To prevent damage to the vehicle
• Do not allow water or foreign matter to
enter the air intake vent when the
cover is removed.
• Carefully handle the removed filter so
that it will not be damaged. If the filter
is damaged, have it replaced with a new
filter by your Toyota dealer.
• Make sure to reinstall the filter and
cover to their original positions after
cleaning.
• Do not install anything to the air intake
vent other than the exclusive filter for
this vehicle or use the vehicle without
the filter installed.
If "Maintenance Required for Traction
Battery Cooling Parts See Owner's
Manual" is shown on the
multi-information display
If the vehicle is continuously driven with
the warning message (indicating that
charging/discharging of the hybrid
battery (traction battery) may become
limited) displayed, the hybrid battery
(traction battery) may malfunction. If
the warning message is displayed, clean
the air intake vent immediately.
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Electronic key battery

Replace the battery with a new one if it is
depleted.
If the electronic key battery is depleted
The following symptoms may occur:
• The smart key system and wireless
remote control will not function
properly.
• The operational range will be reduced.
You will need the following items:
• Flathead screwdriver
• Small flathead screwdriver
• Lithium battery CR2032
Use a CR2032 lithium battery
• Batteries can be purchased at your
Toyota dealer, local electrical appliance
shops or camera stores.
• Replace only with the same or
equivalent type recommended by the
manufacturer.
• Dispose of used batteries according to
the local laws.
Replacing the battery
1. Release the lock and remove the
mechanical key.