My 2010 GMC Acadia has been leaking fluid on and off since August 2011. I have brought it into the dealer several times. I have even brought evidence of the leak - pictures of the fluid on my driveway and paper towel that I placed under my car to collect the fluid so they could see the color. I have heard a variety of reasons including some leaks are normal and maybe it was residue from the last oil change. I am not a mechanic but it is reddish fluid and it is more than a couple of annoying drips so I wouldn't think it is just residue from the last oil change. Also, this has been going on for 18 months now and it is happening again. What can I do to ensure that it really gets fixed correctly this time?