See also:

Electronic key battery
Replace the battery with a new one if it is discharged. You will need the following items: Flathead screwdriver. Small Phillips-head screwdriver. Lithium battery (CR1632). Replacing the battery ...

Armrest
Pull the armrest down for use. NOTICE: To prevent damage to the armrest Do not place too much strain on the armrest. ...

If you lose your keys
New genuine Lexus keys can be made by your Lexus dealer using the other keys and the key number stamped on your key number plate. ...