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"Service 4WD" - Master Thread
2015 Denali 4wd issue I am having the same issues. Have had to bring in my new 2015 Denali twice so far. Finally they told me that there is no fix for this problem. Cannot use the AWD system. It's either 2wd or 4wd. One of the reasons I purchased this suv was for the AWD option. Now I am...- jemchicago
- Post #33
- Forum: Engine & Drivetrain
