{"nhtsa_id":11028891,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-02-19","date":"2026-02-09","document_id":"S2525000002 REV.A","mfr_campaign":null,"replaces":null,"component":"FUEL/PROPULSION SYSTEM","mfr_system":null,"summary":"Diesel Exhaust Fluid (DEF) Gauge Fluctuates Or Is Erratic. Diagnostic Trouble Code (DTC) P203F – Reductant Level Too Low.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028891-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028891-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11028891","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":["P203F"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_ram_2500","2026_ram_2500"]},{"make":"RAM","model":"3500","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_ram_3500","2026_ram_3500"]},{"make":"RAM","model":"4500","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_ram_4500","2026_ram_4500"]},{"make":"RAM","model":"5500","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_ram_5500","2026_ram_5500"]}],"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":[]}