For the factory-installed system:
* Key Fob: The most common method is using the key fob remote. This usually involves pressing a button labeled "Lock," "Unlock," or a similar symbol. Try pressing and holding the unlock button for a few seconds. If it has a panic button, that might not disarm the system, but it could be worth trying.
* Key in the Ignition: Some systems may require inserting the key into the ignition and turning it to the "on" position (but not starting the car). This may or may not disarm the alarm. After a few seconds of this, the system *might* disarm.
* Check for an Override Switch: Some Chrysler vehicles had a hidden security override switch. The location varies by model year and trim level. Your owner's manual (if you have it) is your best bet. Look for a small, often unlabeled switch somewhere near the steering column or under the dash. This is less common.
If it's an aftermarket system:
* Consult the Installation Manual: The most important thing to do is find the installation manual for the aftermarket alarm. It should detail how to disarm it. Look for a sticker on the alarm's control unit (often located under the dash) that may list the brand and model number.
* Look for a Keypad or Remote: Aftermarket systems often have their own keypads (usually located near the steering column or center console) or remote fobs.
If you've tried all the above and the alarm continues to sound:
* Disconnect the Battery: This is a last resort. Disconnect the negative terminal of your car battery for a few minutes to completely cut power to the alarm system. This will stop the alarm, but it will also reset your radio presets and possibly other settings. Be careful when working with car batteries.
If you don't know if it's a factory or aftermarket system, start with the key fob method then try the key in the ignition. If neither works, search online for information specific to the 2001 Chrysler Sebring security system. Your owner's manual will be the ultimate guide. If all else fails, contacting a locksmith or auto electrician is recommended.