OEM Issues
When all else fails, turn to the fine folks of the interwebs for help.
I have a 2005 4wd I6 SWB Trailblazer with 140K miles, all mine. No mods, stepper moter replacements have been done. Serviced between 3K and 5K miles its entire life.
3 weeks ago, went to pass a vehicle, all dashboard...