For instance: Did you know your parked vehicle can double as a fully functioning oven? Thanks to the greenhouse effect, the trapped heat inside your vehicle can easily push dashboard temperatures well above 160°F. I grabbed some ready-to-bake cookies, set the tray on my truck dash, and let them sit in the heat for three hours. A Very Important Safety ReminderWhile baking dashboard cookies is a fun, visual way to demonstrate extreme summer temperatures, it’s also a sobering reminder of just how intense vehicle heat can get. Please remember to never leave children or pets inside a parked vehicle under any circumstances, even for a moment.