Chrysler 300 2014–2020 — technical service bulletin
Bulletin S2025000001 Rev. · NHTSA communication 10181548 · issued Sep 9, 2020
Technical service bulletin
communication type
Electrical System
component
2014–2020
model years
15
vehicle entries
Official summary
(Revision A) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
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.