{"nhtsa_id":10230892,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-02-02","date":"2023-01-05","document_id":"07-001-23","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Some customers may complain about insufficient heater performance under -4 degree F (-20 degree C) or colder environment. This is caused when the air conditioner is set to the defroster mode, cold air bypasses around the PTC heater and the warmed air at the PTC heater is cooled down by the cold air around it. This results in insufficient heater performance. To eliminate this concern, the cold air around the PTC heater has been reduced and the control software of the heat pump control unit has been modified to increase the output temperature of the PTC heater.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10230892-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10230892-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10230892","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"MX-30 PHEV","year_from":2022,"year_to":2022,"match":"base","vehicle_ids":["2022_mazda_mx-30"]}],"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":[]}