My problem is "rear defogger inoperative". Other than this issue, I am very happy with the Terrain. Small issue, but now they have me ............
I gave a print out of the thread on this subject to my GMC dealers manager and she gave it to her GM Southeast dealer contact. The GM Southeast area contact told my dealer, information from the internet is not valid. And is not willing to support any of the solutions outlined in the trread.
Long details are in the thread listed in the above post. I am asking for a battery replacement. Response, I could put one in at my own cost.
>> I did research and testing on in stock Terrains(13) in this area. My data and GM Tech Link (June 2010), indicates problem is initiated by a low start-up state of charge. I found a 2011 with this condition, and with a dealer tech working with me >> this Terrains "rear defogger" failed to operate. We did a test on another Terrain with a good battery condition, and the rear defogger did operate.
Again, this is a small issue, but per the listed thread, they have replaced the battery for others.
Thanks for info, I will keep pushing this issue till I find "GM's real customer assistance".