{"nhtsa_id":623503,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-29","date":"2001-06-26","document_id":"260601","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:SUN/MOON ROOF ASSEMBLY","mfr_system":null,"summary":"VEHICLES EQUIPPED WITH SUNROOF AND THE OPTIONAL OR ACCESSORY ROOF RACK PACKAGE CAN GENERATE WIND NOISE WHEN THE SUNROOF IS OPEN. *JB","document":null,"url":"https://open.wenmarpro.com/bulletins/623503","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"sunroof","name":"Sunroof","parent":"visibility"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"AVALANCHE","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_chevrolet_avalanche"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}