Jeep Cherokee 2019–2020 — technical service bulletin
Bulletin S2218000023 · NHTSA communication 10229769 · issued Dec 22, 2022
Technical service bulletin
communication type
Back Over Prevention
component
2019–2020
model years
6
vehicle entries
Official summary
Malfunction Indicator Lamp (MIL) Illuminated. Diagnostic Trouble Code (DTC) U02A3 ? Lost Communication ith Particulate Matter (PM) Sensor, Set After PM Sensor Replacement.
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.