The New Voice Controls Coming to Your Driver's Seat

You approach the car with arms full of groceries and call out, "Open the tailgate!" On the road, as snow builds, the vehicle asks if you'd like to engage four-wheel drive, which you do by saying "yes." Wondering what that digital warning symbol is on your dashboard? The car can explain as you drive. The technology behind these scenarios is expected to make its way into cars in the next year or two, as auto makers expand voice capabilities and allow users to control more of the car through spoken word.