Bypass security to start car

Hello, I can't understand why your key fob battery would trigger your security system, unless you have a non-factory system. If that is the case, there is no way to know what is going on unless you are familiar with the workings of a 17 year old alarm system. It's too hard to guess. If there is an aftermarket alarm system, I'd have it removed. www.repairpal.com/repair-shops