Welcome to the forum. Yes , there is an amazing amount of information here. I'm glad you found us! Probably the best advise that Found here is to read the owner manual cover to cover. The systems on this car are complex and many of the answers are in the OM. If you don't have one, you can down load it off of this suite as well
https://www.xlr-net.com/specs/2006/2k06xlr.pdf
Tim
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https://www.xlr-net.com/specs/2006/2k06xlr.pdf
Tim
Sent from my iPad using Tapatalk