The thermostat on a 1996 Chrysler Sebring convertible is
located on the engine, typically near the top of the engine block or the housing for the water pump. It's not easily accessible without some mechanical aptitude and tools. You'll likely need to consult a repair manual specific to that year and engine (the 2.0L, 2.4L or 2.5L were common). The manual will have diagrams showing the exact location and steps for replacement.
Warning: Working on a car's cooling system requires understanding of how to safely handle hot coolant. If you're not comfortable with this type of repair, it's best to take your Sebring to a qualified mechanic.
