Hello! I am new here! I just bought a 2004 Chrysler crossfire and I am LOVING it!!!

Anyways, the guy that sold it to me says the key fob stopped working when he replaced the car battery.

I tried re-syncing the remote to the car according to the owners manual (press lock or unlock on the fob twice and then within 30 seconds turn the key to the run position.

That did not work. But I also noticed that the alarm does not turn on by locking the car with the key. The only thing that happens is I can hear the (air pump?) click in the back of the car and all the locks are then locked.

The car only came with one key and I am considering purchasing a new one off needswings but I want to get this figured out to make sure it isn't something else.

Also, I did replace the 2 CR2025 batteries in the remote, no change.