Jeep Gladiator 2020–2021 — technical service bulletin
Bulletin S2009000004RevA · NHTSA communication 10221293 · issued Jun 18, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020–2021
model years
3
vehicle entries
Official summary
Oil Leak Between The Engine Oil Cooler/Filter Housing, And The Engine Block.
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.