The 4 wheel drive is not working on my 2005 GMC 1500HD.
What is your question?
Sometimes there are no lights on the switch, or it will show 2hi, 4lo, or neutral but it never actually goes into 4lo. It does not matter what button you push it doesn't change anything.
How long has your 2005 GMC Sierra 1500 HD had this problem?
RepairPal Certified shops can diagnose and repair your 2005 GMC Sierra 1500 HD. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
