Jeep Compass 2021–2024 — technical service bulletin
Bulletin 09-018-25 · NHTSA communication 11020832 · issued Jul 16, 2025
Technical service bulletin
communication type
Engine
component
2021–2024
model years
24
vehicle entries
Official summary
Engine Cylinder Block Porosity Inspection - Engine Cold Start Rough Idle Customers may experience the following: ● Rough engine idle when cold starting the engine. ● Low coolant level in coolant recovery bottle.
Vehicles covered
- 2021 Jeep Compass
- 2022 Jeep Compass
- 2023 Jeep Compass
- 2024 Jeep Compass
- 2021 Jeep Grand Cherokee
- 2022 Jeep Grand Cherokee
- 2023 Jeep Grand Cherokee
- 2024 Jeep Grand Cherokee
- 2021 Jeep Grand Cherokee 4XE
- 2022 Jeep Grand Cherokee 4XE
- 2023 Jeep Grand Cherokee 4XE
- 2024 Jeep Grand Cherokee 4XE
- 2021 Jeep Grand Cherokee L
- 2022 Jeep Grand Cherokee L
- 2023 Jeep Grand Cherokee L
- 2024 Jeep Grand Cherokee L
- 2021 Jeep Wrangler
- 2022 Jeep Wrangler
- 2023 Jeep Wrangler
- 2024 Jeep Wrangler
- 2021 Jeep Wrangler 4XE
- 2022 Jeep Wrangler 4XE
- 2023 Jeep Wrangler 4XE
- 2024 Jeep Wrangler 4XE
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.