RAM 1500 2025 — technical service bulletin
Bulletin 09-017-25 · NHTSA communication 11020753 · issued Jul 11, 2025
Technical service bulletin
communication type
Engine
component
2025
model years
1
vehicle entries
Official summary
Loose Charge Air Cooler Case Crimp Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P219C-00 - Cylinder 1 Air-fuel Ratio Imbalance. ● P219D-00 - Cylinder 2 Air-fuel Ratio Imbalance. ● P219F-00 - Cylinder 4 Air-fuel Ratio Imbalance. ● P21A0-00 - Cylinder 5 Air-fuel Ratio Imbalance. ● P21A1-00 - Cylinder 6 Air-fuel Ratio Imbalance. Customers may experience one or more of the following: ● Audible whistle type noise heard from the engine area. ● Reduced boost to performance Thi
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.