A car alarm that won't stop can be frustrating for a car owner and anyone within earshot of the alarm. Turning the alarm off without your remote isn't as easy as using the remote, but it can be done.
Use the key to unlock the driver's door from the outside. This might work with the passenger door or the boot as well, but it will not work with every car or every alarm.
Place the key in the ignition and start the car.
Use a keyless-entry remote to unlock the car doors.
Use a keyless-entry remote to automatically start your car.
Find the alarm component within your car's inner frame and disconnect the alarm wires from the alarm system. Cut the alarm wires about 1/2 inch from the alarm system.