Correct Roof Rack Crossbow Position

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Tuesday, April 30, 2002

"This message applies to 2002 Chevrolet TrailBlazer, except TrailBlazer EXT, GMC Envoy, except Envoy XL, and Oldsmobile Bravada. Since September 1, 2001 these vehicles have been built with the roof rack crossbows reversed. This is being done intentionally to reduce wind noise caused by the roof rack. Inspections of the crossbows may reveal arrows and the word front on the ends of the crossbows pointing to the rear of the vehicle. This is the way they should be. The arrows were removed from the crossbows in production during February 2002. Do not install the crossbows with the arrows pointing forward unless installing an accessory that attaches to the crossbows and requires the crossbows to be installed that way. This is Al Ferry, Brand Quality Manager."

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.