TSB 18-038-26 — Ram Service bulletin
18-038-26 is a service bulletin on file with NHTSA for 2 Ram models, 2025 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exhibit/set SYMPTOM: one or more of the following Diagnostic Trouble Codes (DTCs): ● P219A - Bank 1 Air-Fuel Ratio Imbalance. ● P219B - Bank 2…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 18-038-26 names
Every document filed under 18-038-26
| Document ID | Filed | Type |
|---|---|---|
| 18-038-26 REV. A | July 29, 2026 | Service bulletin |
What 18-038-26 covers
Transmission & drivetrain, Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 18-038-26?
18-038-26 is a service bulletin filed with NHTSA by Ram, covering 2 Ram models across the 2025 model years. NHTSA's summary reads: Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exhibit/set SYMPTOM: one or more of the following Diagnostic Trouble Codes (DTCs): ● P219A - Bank 1 Air-Fuel Ratio Imbalance. ● P219B - Bank 2…
Which vehicles does 18-038-26 cover?
NHTSA's file names Ram 2500 (2025); Ram 3500 (2025). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB 18-038-26 a recall, and is the repair free?
No. 18-038-26 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of 18-038-26?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 18-038-26, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 18-038-26. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.