Jeep Gladiator 2014–2021 — technical service bulletin
Bulletin S2025000001 Rev. · NHTSA communication 10184701 · issued Nov 5, 2020
Technical service bulletin
communication type
Equipment
component
2014–2021
model years
17
vehicle entries
Official summary
(Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
Vehicles covered
- 2021 Jeep Gladiator
- 2014 Jeep Grand Cherokee
- 2015 Jeep Grand Cherokee
- 2016 Jeep Grand Cherokee
- 2017 Jeep Grand Cherokee
- 2018 Jeep Grand Cherokee
- 2019 Jeep Grand Cherokee
- 2020 Jeep Wrangler
- 2021 Jeep Wrangler
- 2014 RAM 1500
- 2015 RAM 1500
- 2016 RAM 1500
- 2017 RAM 1500
- 2018 RAM 1500
- 2019 RAM 1500
- 2020 RAM 1500
- 2021 RAM 1500
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.