Anyone know how to reset the AVH system? I pulled my battery out to check the date code on it. I followed the detailed procedure for changing the battery that is published elsewhere in this forum. Now I am getting an AVH failure warning. I played with the parking brake control until the "Brake" indicator went off. Then I drove about 3 miles and it drove fine. No brake drag or anything noticeable. I doubt there is any hardware problem because this was triggered by having the battery disconnected. I think that I just need to reset the software.