{"nhtsa_id":10172290,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-03-09","date":"2020-01-29","document_id":"20NA022","mfr_campaign":null,"replaces":null,"component":"BACK OVER PREVENTION; WHEELS","mfr_system":null,"summary":"This technical bulletin provides a procedure to re-torque the leaf spring u bolts to correct a condition of Clunking Noise from Rear of Vehicle (Re-torque Leaf Spring Bolts).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10172290-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10172290-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10172290","components":[{"id":"driver-assistance","name":"Driver assistance","parent":null},{"id":"wheels","name":"Wheels","parent":null},{"id":"backup-camera","name":"Backup camera","parent":"driver-assistance"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 2500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_gmc_sierra"]}],"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":[]}