Jeep Grand Cherokee 2017–2021 — technical service bulletin
Bulletin S1925000008 Rev. · NHTSA communication 10180209 · issued Aug 12, 2020
Technical service bulletin
communication type
Exterior Lighting
component
2017–2021
model years
8
vehicle entries
Official summary
(Revision A) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance 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.