RAM 2500 2026 — technical service bulletin
Bulletin 18-002-26 REV. B · NHTSA communication 11034356 · issued Jun 24, 2026
Technical service bulletin
communication type
Power Train
component
2026
model years
4
vehicle entries
Official 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
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.