Jeep Grand Wagoneer 2022 — technical service bulletin
Bulletin 1805823 · NHTSA communication 10239990 · issued May 13, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2022
model years
2
vehicle entries
Official summary
This bulletin applies to vehicles built on or before October 04, 2022 (MDH 1004XX) equipped with a 3.0L I6 Hurricane HO Twin Turbo ESS
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.