Will alarm go off if someone is trying to steal gas out of a Buick lacrosse?

Whether an alarm goes off when someone is trying to steal gas from a Buick Lacrosse depends on the specific make and model of the vehicle and whether it is equipped with a security system. Many modern vehicles have anti-theft features, but not all alarms are triggered by tampering with fuel tanks. If the vehicle has a sensitive enough alarm system or additional security measures, it might activate. However, if the system isn't designed to detect this type of intrusion, the alarm may not sound.