Ward's Auto, an industry-watcher that recently started tracking installation rates of push-button ignitions, reports 25.4 percent, or 4.4 million, 2013 model-year cars and trucks sold had the feature.

In today’s modern automotive landscape, push-button start car s have become a popular feature, signaling a shift away from ...

For cars with a push-button start, however, all you have to do is physically put your dead-battery fob in a designated location, and the button will still work.