Yukon Cruise Control problem
I have a 2001 Yukon cruise control issue. The cruise control will not engage unless I plug in the trailer light adapter. With the adapter plugged in, the CC works fine until I turn on the turn signal which disengages the CC. Also, if the headlights are turned on, the CC disengages and will not reingage until the headlights are turned off. I do not have to have a trailer attached, just the trailer light adapter. It is the factory connection, no mods have been made. I also have replaced the brake switch.