A "car alarm" refers to a security system installed in a car that produces a loud noise or triggers flashing lights when someone tries to break into or steal the vehicle. Full definition
Approved anti theft devices may include items such as installed car alarms and wheel locks. (carinsurancecheap.net)
With newer cars, more safety features come standard whereas, with older automobiles, you usually have to add things like car alarms. (carinsurancequote.net)
When these kids set each other off, it's like a room of car alarms. (rookiemoms.com)