In a 2008 Chrysler Town & Country, the hazard lights are usually activated by a button that looks like a triangle with an exclamation point inside. This button is typically located on the center console, near the steering wheel, or on the dashboard itself. It might be illuminated when the hazard lights are activated.
If you can't locate it, consult your owner's manual. It will show you exactly where the hazard light switch is located in your specific vehicle model.