Major Maintence Schedule on 2004 Chevrolet Trailblazer

I have had my car serviced regularly and it now has 140,000 miles on it. When and what should be the next major maintenance on it?

Asked by for the 2004 Chevrolet Trailblazer
i beleieve it is 150k. make sure all your fluids are up to dates. make sure brake fluid, the most neglected fluid, is changed.
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