Electronic Key Battery - Lexus ES 250 Owner's Manual

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6-3. Do-it-yourself maintenance

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 entry & start system and wire-
less 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.
Replacing the battery
Type A

1 Take out the mechanical key.
2
Remove the cover.
To prevent damage to the key, wrap the tip
of the screwdriver with tape.
3 Remove the depleted battery.
Insert a new battery with the "+" terminal