{"nhtsa_id":10115979,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-25","date":"2017-02-06","document_id":"1HD-N6C8Y-03","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"Service Bulletin M1438: NEUTRAL SWITCH INVENTORY REMOVAL notifies that Harley-Davidson has determined that a variance in assembly tolerances may affect the functional performance of certain Neutral Switches (Part No. 33926-06B) causing no or inconsistent neutral light illumination while the transmission is in neutral. In an effort to reduce to the potential of repeat issues by the installation of a suspect replacement neutral switch, Harley-Davidson is requesting that dealers file a Defective Stock (DFS) claim on any existing neutral switches with the identification numbers described in Required Dealer Action, and remove the switches from inventory.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10115979-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10115979-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10115979","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"HARLEY-DAVIDSON","model":"HARLEY-DAVIDSON","year_from":null,"year_to":null,"match":null,"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":[]}