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S2525000002 REV.B

Manufacturer communications

Publication date
2026-03-31
Received by NHTSA
2026-04-10
NHTSA record numbers
11031236

Manufacturer summary

Original wording in English

Diesel Exhaust Fluid (DEF) Gauge Fluctuates Or Is Erratic. Diagnostic Trouble Code (DTC) P203F – Reductant Level Too Low.

NHTSA manufacturer communications ↗

Reported code forms

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
Ram25002026
Ram25002025
Ram35002026
Ram35002025
Ram45002026
Ram45002025
Ram55002026
Ram55002025

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