Hi I am a new member, and this is the first time I have posted a question.

The problem I have, is I am unable to lock the car with the key remotely. I have tried programming it as per instructions on various sites and you tube etc
I purchased a new rechargable battery for the remote (Diamond shaped key) and opened the key with a stanley knife to find that the battery inside is fully charged. I decided to change the battery anyway seeing that I had opened the key up, and have tried to program it numerous times without any luck.
The key is less than 2 years old, is it possible that the electrics inside are faulty,or is there any settings in the car that I should check?

Any help on this would be appreciated.