[Camou2]

Just another someone who doesn't have sufficient knowledge to be informing you. You are not required to have regular maintenance done by a HUMMER dealer or any other GM dealer. But, and I do mean BUT, you must keep records of the maintenance that you have done on your truck whether you do it yourself or have it done by a local repair shop. You must perform all required maintenance just like your owners manual details. I have my normal maintenance done by a local shop that has been doing this on my cars and trucks for years. When maintenance is due on my HUMMER's I take out the owners manual and have him specifically detail every item on the schedule maintenance list on his invoice. Documentation is the KEY!