2006 2500HD won't go into TOW mode

dzimbric

Member
Oct 21, 2015
86
2
8
Shallotte, NC
My 2008 won't go into tow/haul mode. I have DP5 switch and tune diesel domination. I will pick up a code reader this weekend to see if it throwing any codes.
The truck has 200K on it
 

dzimbric

Member
Oct 21, 2015
86
2
8
Shallotte, NC
I'm hoping it's electrical. The cruise wouldn't work the other day then it started working the next day. Do I need to remove the column to fix it?