One problem related to door has been reported for the 2004 Chevrolet Trailblazer. The most recently reported issues are listed below.
My right side back door does not open and my left back door does not close unless I hit the lock first. Also as I am driving no matter what the weather my 4 wheel drive will just kick in on its own. Now it feel as though the transmission is going. This to me is a danger to my children and myself> I also feel that these are defects in this vehicle as I feel g. M should be responsible I will never buy another g. M again. Someone should look into this.