How To Reset Car Alarm After Battery Change. How to Reset Your Car Alarm in the event of flat battery or your remote car key fail or after replacing new batteryStep by stepinsert your key and turn yo. I would try to reboot the system by removing the negative battery cable and holding it to the positive terminal for one minute.
My battery recently died and I had to replace it. When I stick my key in all the interior lights go out and then the key fob no longer can lockunlock the doors. Try it and let us know if this works.
Step out from your car and test the result.
Also many car alarms have a fail safe that needs to be reset after a battery change. Youll need to reconnect the battery and repeat Steps 1 and 2 to disable the alarm system. The alarm is not arming when I lock the doors and I tested opening the doors from the inside after locking with the remote and the. I have done this before and been able to reset it.
