The car alarm keeps going off for no reason. We already changed the batteries on the key fobs did not help
If this an aftermarket alarm, disconnect it. Have heard nothing but trouble with those. If factory - check the door switches, the little switches that sense the door is closed. Make sure that your interior light switch is off. Some alarms run off the light, if the door opens the light goes on, then the alarm activates. If the interior light is burned out and the switch is on the alarm will activate. Are you sure no one is messing with the car?