One problem related to dash wiring has been reported for the 2008 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 GMC Acadia based on all problems reported for the 2008 Acadia.
Bought our GMC Acadia Dec. 2011 had no issues till Jan 2012. Since then it has been back to the dealership repeatedly for seemingly linked problems. Started with just a dead battery upon further investigation found that the wiring harness was submerged in water, causing battery to short out, replaced the battery and fixed the apparent point of entry. Not two weeks later back in the shop, water pouring from the head liner (around the interior lights, sunroof moldings, and seat belt joints). Our Acadia remained at the dealership for three days with no luck of finding a leak (checked all drain lines and ran the vehicle through the water machine). Here we are again vehicle has been at the shop for a week with no luck of finding the point of intrusion; this time the water leak shorted out the entire fuse panel. After trying to find the leak for over a week, sending the vehicle to another shop to "get a fresh set of eyes on it", and contacting gm for advise (which was no help) the dealership still has been unsuccessful in locating the water leak. Not sure what to do next. All I know is we bought a $30,000. 00 car so we wouldn't have problems and here we are with problems, expensive problems.