One problem related to power window has been reported for the 2003 Chevrolet Avalanche. The most recently reported issues are listed below.
The contact owns a 2003 Chevrolet Avalanche. The front passenger side window locked in the up position a year after the vehicle was purchased. The failure was repaired. On April 19, 2006, the front driver side window locked in the down position. The contact was given a case number from Chevrolet, however the vehicle was no longer covered under warranty. The windowwas rarely rolled down ,and Chevrolet stated that the less the motor was used the faster it can become worn. The contact believed that explanationwas just an excuse. The current and failure mileages were 68,000.