{"nhtsa_id":10120167,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-10-21","date":"2014-06-19","document_id":"V871406 2037255","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR","mfr_system":null,"summary":"Technical Bulletin (Whistle Noise from Center Vent Area; Blower Set On 3 or 4 with Full Heat Selected): Customer may hear a high pitched whistle when the Climatic temperature knob is on full heat and the blower is set to either 3 or 4. The temperature flaps allow air to escape past the temperature flap seal. The production solution for this issue was Introduction of improved air distribution unit.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10120167-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10120167-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10120167","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"VOLKSWAGEN","model":"JETTA","year_from":2013,"year_to":2014,"match":"exact","vehicle_ids":["2013_volkswagen_jetta","2014_volkswagen_jetta"]}],"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":[]}