We don't have a lot of GMC Sierra 3500 electrical problems on file — feel free to add yours here. The most common Sierra 3500 electrical problems cost $400 to fix & occur at 77,000 miles. Click on a year below.

Worst Electrical Problems
blows 20 amp fuse under hood 1998 GMC Sierra 3500
gauges are erratic 2003 GMC Sierra 3500
cluster panel failure 2004 GMC Sierra 3500