{"nhtsa_id":10175535,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-05-26","date":"2020-03-05","document_id":"08-028-20","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience the following:Bump or shutter felt during engine start/stop (ESS) situation. The following enhancement is also included in this software update:Improvements to engine start stop quality to eliminate bumps or shutter. Improvements to motor rotor temperature model for robustness.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175535-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175535-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10175535","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_ram_1500"]}],"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":[]}