{"nhtsa_id":621744,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-01","date":"2001-05-29","document_id":"SL412002","mfr_campaign":null,"replaces":null,"component":"STEERING","mfr_system":null,"summary":"INFORMATION ON THE UPGRADED TRW GENERATION II STEERING COLUMN WHICH PROVIDES AN ADDITIONAL 20 MM FORWARD TILT OF THE STEERING WHEEL. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/621744","components":[{"id":"steering","name":"Steering","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CH","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"MACK","model":"CL","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]}],"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":[]}