{"nhtsa_id":11034356,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-07-02","date":"2026-06-24","document_id":"18-002-26 REV. B","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P219A - Bank 1 Air-Fuel Ratio Imbalance Bank 1. ● P219B - Bank 2 Air-fuel Ratio Imbalance. NOTE: This revision has an updated and more effective fix for DTC P219B than the prior version. Customers may also comment on one or more of the following: ● **Power Take-Off (PTO) may cancel during engagement with high PTO loads.** ● PTO not auto-resuming after hard-wired remote start (DD/DP Only). ● Engine speed surging, unstable, or oscillating while coasting at low vehicle speeds. ● Stationary Idle PTO feature is not activating when the user configuration is selected to require parking brake be set (DD/DP Only). In addition, the following software enhancement(s) is available: ● Increase the duration that Power Takeoff related messages are displayed on the Instrument Panel Cluster (IPC) (DD/DP Only) **This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.**","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034356-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034356-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11034356","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P219A","P219B"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_ram_2500"]},{"make":"RAM","model":"3500","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_ram_3500"]},{"make":"RAM","model":"4500","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_ram_4500"]},{"make":"RAM","model":"5500","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["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":[]}