Electronic Key Battery; Replacing The Battery - Lexus LS460 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.
You will need the following items:

Small Phillips-head screw-
driver

Small flathead screwdriver

Lithium battery CR1632

Replacing the battery

1
Take out the mechanical key.
2
Remove the cover.
LS460_EE (OM50D49E)