One problem related to transmission failure has been reported for the 2003 Chevrolet Suburban. The most recently reported issues are listed below.
2003 chevorlet Suburban - transmission failed at 45, 000 miles. Since it wasn't under warranty any longer, purchased a new transmission from gm with a 3 yr 100, 000 mile warranty. After 3yrs, 4months, the vehcle now has 91,000 miles and the transmission has failed again. Each time the cost is over $2500.