{"nhtsa_id":10224948,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-31","date":"2017-10-24","document_id":"2400417","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM","mfr_system":null,"summary":"Flash: HVAC System Improvements This bulletin involves reprogramming the Heating Ventilation Air Conditioning (HVAC) Module with new software. Some customers may experience one or more of the following conditions:HVAC is shutting off during a cold engine crank due to low voltage, user will need to manually turn HVAC system back on.. Erratic blower speed operation when using HVAC system in auto mode. Brief burst of hot or cold air after adjusting the HVAC temperature setting. Updating the HVAC software will correct these conditions.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10224948-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10224948-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10224948","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":[],"topics":[],"vehicles":[{"make":"DODGE","model":"DURANGO","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_dodge_durango","2015_dodge_durango"]},{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_jeep_grand-cherokee","2015_jeep_grand-cherokee"]}],"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":[]}