{"nhtsa_id":10170816,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-01-30","date":"2020-01-29","document_id":"07-001-20-3660","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER","mfr_system":null,"summary":"Some customers may experience one side (driver side or passenger side) blowing warmer air out of the vents with the same or very close temperature settings for both sides when using the A/C and no DTCs related to the air conditioner system are stored in memory. This is caused by the air mix doors stopping operation during cranking and not recovering until the ignition is turned off. To correct this concern, the control software of the Dash-Electrical Supply Unit (Dash-ESU) has been modified.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10170816-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10170816-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10170816","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"MAZDA3","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_mazda_mazda3","2020_mazda_mazda3"]}],"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":[]}