If your alarm is going off unintentionally, try these things:
* Key Fob Battery: Replace the battery in your key fob. A weak battery can cause intermittent issues.
* Key Fob Programming: If you've had recent work done on the car's electrical system, the key fob might need to be reprogrammed. A dealership or locksmith specializing in car electronics can help.
* Check for Intrusion: Make absolutely sure nothing is triggering the alarm (e.g., a window slightly ajar, a door not fully closed, hood ajar).
* Alarm System Malfunction: The alarm system itself may have a fault. This is less common but possible and would require a diagnostic check by a mechanic. Sometimes disconnecting the battery (carefully, and noting any radio presets or clock settings you want to preserve) for a short while can reset the system, but this isn't guaranteed to work and it could erase some settings.
If none of these solve the problem, you'll likely need to take your Sebring to a mechanic or dealership to diagnose and repair the issue.