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Switch, Overdrive Lockout: Description: Description

WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Tow/Haul Overdrive Off Switch
GC0109204Courtesy of CHRYSLER GROUP, LLC
1 - AUTO-6 (ERS)
2 - TOW/HAUL
3 - OVERDRIVE ON/OFF SWITCH

The Tow/Haul and Auto-6 Electronic Range Select (ERS) switches are located in the shift lever arm. The switches are momentary contact devices that signal the PCM to toggle current status of the Tow/Haul function and adjust the ERS maximum allowed gear range.