See also:

What is not covered
These warranty obligations do not apply to failures or noncompliance caused by: • The use of replacement parts not certified in accordance with aftermarket parts certification regulations. †...

Electronic key battery
Replace the battery with a new one if it is discharged. - You will need the following items: l Flathead screwdriver (To prevent damage to the key, cover the tip of the screwdriver with rag.) l S ...

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