If any of your car's hinged portals aren't closed all the way, you'll see the door ajar, hood ajar, tailgate ajar, or liftgate ajar symbols on your Ford dashboard. Those lights are to remind you ...

It's easy to see if you've switched it off by accident by pressing the respective button on the dashboard, and it should also light up if there's a fault that has disabled it. A low washer fluid ...

Here are some of the most common car warning light indicators, and advice from CR's auto pros on what to do if they light up ...