One problem related to battery has been reported for the 2002 Chevrolet Avalanche. The most recently reported issues are listed below.
The contact owns a 2002 Chevrolet Avalanche 2500. While driving 60 mph, the vehicle would intermittently fail without warning. After waiting for a short period of time, the vehicle would eventually restart. When the failure occurs, the battery drains shortly afterwards. He took the vehicle to the dealer on numerous occasions, but they could not find any error codes or duplicate the failure. The vehicle has not been repaired. The failure mileage was 89,000 and current mileage was 93,000. Updated 02/10/09. Updated 02/11/09.