Lexus RX 350 - Electronic Key Battery; Replacing the Battery

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4-3. Do-it-yourself maintenance
Electronic key battery
Replace the battery with a new one if it is depleted.
■ You will need the following items:
● Flathead screwdriver
● Small Phillips-head screwdriver
● Lithium battery (CR1632)
■ Replacing the battery
Take out the mechanical key.
Remove the cover.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
STEP 1
STEP 2
STEP 3