One problem related to front suspension hub has been reported for the 2004 Chevrolet Trailblazer. The most recently reported issues are listed below.
Three times since purchasing this vehicle in January 2012, I have had to replace the right front wheel hub assembly due to bearing failure. Recently the transmission, which has not exhibited a leak, was very low on fluid, (3 quarts) and the fluid was burned. The transmission now slips and is changing erratically. The vehicle was regularly serviced at buff whelan Chevrolet in sterling heights, mi.