{"nhtsa_id":10187719,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-03-01","date":"2020-12-23","document_id":"24-002-20","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Heating, Ventilation and Air Conditioning (HVAC) Module Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination with the following Diagnostic Trouble Code (DTC) or the symptom/conditions listed below:B10C8-36 - Cabin Fan Brushless - Signal Frequency Too Low. The HVAC fan stops working after a Engine Start/Stop (ESS) function.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10187719-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10187719-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10187719","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":["B10C8"],"topics":[],"vehicles":[{"make":"ALFA ROMEO","model":"GIULIA","year_from":2020,"year_to":2020,"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":[]}