Jeep Grand Cherokee 2014–2021 — technical service bulletin
Bulletin S1818000024 · NHTSA communication 10221168 · issued Apr 26, 2021
Technical service bulletin
communication type
Fuel System, Diesel
component
2014–2021
model years
16
vehicle entries
Official summary
Diesel Fuel Injector Cleaning Procedure
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.