Jeep Grand Cherokee 2025 — technical service bulletin
Bulletin 09-019-25 · NHTSA communication 11020846 · issued Jul 16, 2025
Technical service bulletin
communication type
Engine
component
2025
model years
2
vehicle entries
Official summary
Make Up Air Hose Disconnected Customers may experience the following● A deterioration in engine performance. This bulletin involves inspecting the Make Up Air Hose and, if needed, reconnecting the hose to the resonator.
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.