Jeep Grand Cherokee 2014–2020 — technical service bulletin
Bulletin S2025000001 · NHTSA communication 10175479 · issued Mar 11, 2020
Technical service bulletin
communication type
Electrical System
component
2014–2020
model years
14
vehicle entries
Official summary
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.