Smart keys not making Americans smarter about getting locked out

According to AAA, at least 4 million Americans a year call for help after getting locked out of their car. What's noteworthy: That figure hasn't changed despite the advent of "smart" keys, those fobs that you can stick in your pocket and forget — which a surprising number of people do.

More than half of all new vehicles offer either standard or optional push-button start and keyless entry, and the feature has become ubiquitous on luxury cars. Even low-end models – from the Chevy Sonic to the Dodge Dart to the Ford Fiesta — now offer fobs rather than old-fashioned keys. Anyone who's ever driven a car with one can see the benefits; no hunting for keys and no fumbling to unlock doors when carrying heavy packages or children, thanks to the auto-sensing system most vehicles employ.