{"nhtsa_id":11036359,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-08-26","date":"2026-08-19","document_id":"18-077-26","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ENGINE","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P0300 - Multiple Cylinder Misfire. Customers may experience one of the following: ● Vehicle runs rough on initial cold start only after an overnight or extended soak. **This bulletin involves reprogramming the PCM with the latest available software.**","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036359-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036359-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036359","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0300"],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_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":[]}