We contacted automakers for their take on this hot-button issue (no pun intended) and got some surprising responses.

The EPA said it will end credits for the start/stop feature, which shuts off gas engines when cars are idle to save fuel.

Start-stop is a relatively small feature with a dense engineering stack behind it. Modern systems tie together the engine control unit, starter-alternator hardware, beefed-up 12-volt or ...

As part of its broader rollback of U.S. fuel economy rules, the Trump administration says it is eliminating a credit for automakers that got breaks on the fuel economy compliance if they installed ...

The Environmental Protection Agency says it is ending credits to automakers who install automatic start-stop ignition systems in their vehicles.

The EPA's new deregulatory action effectively ends the mandate of auto stop/start on new vehicles.

If you’ve driven almost any gas-powered car made in the last 10 years or so, you’ll no doubt have an opinion on automatic ...

GM faces a choice on automatic stop-start after EPA rule changes. Should the automaker kill the feature or give drivers ...

As part of the Trump administration's changing emissions policy, the Environmental Protection Agency (EPA) has said it would be abandoning support of engine stop-start systems on all vehicles sold ...

In a dramatic shift in federal environmental policy, the U.S. Environmental Protection Agency (EPA) under Administrator Lee ...

For more than a decade, automatic engine start/stop systems were sold as painless climate tech, a clever way to trim fuel use by cutting the engine at every red light. Now the feature is rapidly ...