Electronic Key Battery - Lexus UX 250h 2020 Owner's Manual

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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 malfunc-
tion.
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 Lexus 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-infor-
mation display
If the vehicle is continuously driven with
the warning message (indicating that
charging/discharging of the hybrid bat-
tery [traction battery] may become lim-
ited) displayed, the hybrid battery
(traction battery) may malfunction. If the
warning message is shown, clean the air
intake vent immediately.

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 access system with push-but-
ton start and wireless remote control will
not function properly.
● The operational range will be reduced.
■ When the card key battery needs to be
replaced (if equipped)
The battery for the card key is available only
at Lexus dealers. Your Lexus dealer can
replace the battery for you.
Items to prepare
Prepare the following before replacing
the battery:
 Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2032
Use a CR2032 lithium battery
■
Batteries can be purchased at your Lexus
●
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.