Switch-Tow/Haul Overdrive: Description
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
The tow/haul overdrive OFF (control) switch is located in the lower portion of the center instrument panel switch cluster. The switch is a momentary contact device that signals the PCM to toggle current status of the overdrive function.