Holden Commodore 50th Anniversary car key issues - car wont work?

[Sarahh]

I have a holden commodore and when i unlocked the car with the central locking on the key it was fine, but then i put it in the ignition and everything stopped. The internal car light tuned off, the central locking stopped, the car wont turn on. i thought it might be the car battery but it is fine, i checked it. It seems like there is something wrong with the key immobliser or battery or the car computer? i dont know what do to, if i need a new key or someone to check out the car. i cant drive it cause it wont turn on at all. any ideas what it might be?

[Brett_jjj]

Does the interior light come on at all,or the headlights? Check to see if these are working, also check to see if the headllights are heaps bright and not dim or dull. Also a bad connection at one of the battery terminals can cause wierd problems similar to what youve said, so actually remove both the battery terminals and then refit them again, making sure they are done up fairly tight.Let us know how you get on with it.