{"nhtsa_id":10183724,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-12-05","date":"2020-11-11","document_id":"01-079","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Fix as Fail The HVAC system, on model 579 and 567 vehicles manufactured since 1/20/2012 may have inadequate temperature control. The HVAC may intermittently stop blowing cold air, typically after a truck restart. Driver may notice the system returns to normal after key cycle. The remedy is updating HVAC software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183724-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183724-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10183724","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T680","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_kenworth_t680"]},{"make":"KENWORTH","model":"T880","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_kenworth_t880"]},{"make":"KENWORTH","model":"W900","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"PETERBILT","model":"567","year_from":2013,"year_to":2021,"match":"exact","vehicle_ids":["2013_peterbilt_567","2014_peterbilt_567","2015_peterbilt_567","2016_peterbilt_567","2017_peterbilt_567","2018_peterbilt_567","2019_peterbilt_567","2020_peterbilt_567","2021_peterbilt_567"]},{"make":"PETERBILT","model":"579","year_from":2013,"year_to":2021,"match":"exact","vehicle_ids":["2013_peterbilt_579","2014_peterbilt_579","2015_peterbilt_579","2016_peterbilt_579","2017_peterbilt_579","2018_peterbilt_579","2019_peterbilt_579","2020_peterbilt_579","2021_peterbilt_579"]}],"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":[]}