{"nhtsa_id":10053493,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-11-01","date":"2014-09-01","document_id":"SB-26-50","mfr_campaign":null,"replaces":"SB-26-50-B","component":"POWER TRAIN:MANUAL TRANSMISSION","mfr_system":null,"summary":"FREIGHTLINER: TRANSMISSION MAY BE EXPERIENCING A BUZZING OR CHIRPING NOISE FROM THE SHIFT LEVER. MOST COMMON IS WHEN THE TRANSMISSION IS IN 6TH GEAR AND MOVING AT 50 TO 55 MPH. *KB UPDATED 1/22/14. *PE UPDATED 2/20/15. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10053493","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"manual-transmission","name":"Manual transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"M2","year_from":2010,"year_to":2012,"match":"exact","vehicle_ids":["2010_freightliner_m2","2011_freightliner_m2","2012_freightliner_m2"]}],"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":[]}