One problem related to owners/service manual has been reported for the 2005 Chevrolet Trailblazer. The most recently reported issues are listed below.
On the back of my 2005 Trailblazer the seal around the license plate was melting . It ran like black tar. Talked with other owners, and they all had the same problem. Was part on recall. Had it replaced just after I bought the car, but the problem recurred.