Electronic Key Battery - Lexus RX 450h Owner's Manual

496 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 your Lexus dealer can replace the bat-
tery for you.
You will need the following items:
 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.
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Replacing the battery
Type A

1 Take out the mechanical key.
2 Remove the cover.
To prevent damage to the key, cover the tip
of the flathead screwdriver with a tape.
3 Remove the battery cover.
4 Remove the depleted battery.
Insert a new battery with the "+" terminal