Good find! Here is a picture and description of the switch.
Cruise ON-OFF switch is power switch for cruise control system. When ignition is turned off, cruise ON-OFF switch is also turned off. Switch remains off even when ignition is turned on again.
With cruise ON-OFF switch on, and vehicle speed greater than 25 MPH, set cruise control switch to SET/COAST position and release switch. CC ECU will store and constantly control vehicle speed.
While in cruise control mode, if cruise control switch is set and held in SET/COAST position, actuator will be energized. Engine throttle valve will close, and vehicle will decelerate until switch is released. From then on, CC ECU will store and constantly control new vehicle speed. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
Image (Click to make bigger)
Monday, January 11th, 2021 AT 12:04 PM