I have a 2002 Lexus 300 rx. I can not find the key for it. Does anyone no if I can have a lock smith rekey the door lock and just have a basic key, n will it start with a bacic key?

 

What exactly do you mean by "basic key"?

Full and detailed description of RX first gen key is in the sticky thread .
https://www.clublexus.com/forums/rx-...a-problem.html

RX keys are smart keys and they enable the spark. Signature is stored in the ECU. Locksmith can make you key to operate the locks and ignition but not run the engine. For a duplicate to work you need a Master key.

Salim