# Service bulletin 09\-019\-25

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11020846
- Published by NHTSA: 2025\-07\-23
- Manufacturer's number: 09\-019\-25
- Manufacturer's date: 2025\-07\-16
- NHTSA component: ENGINE

## NHTSA's 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020846-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020846-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2025 JEEP GRAND CHEROKEE
- 2025 JEEP GRAND CHEROKEE L

## Recalls for the same vehicles and component

- [2025617](/recalls/tc/2025617.md), 2025-11-06: Engine
- [25V766000](/recalls/nhtsa/25V766000.md), 2025-11-06: ENGINE

## Other bulletins for the same vehicles and component

- [S2609000011](/bulletins/11037354.md), 2026-09-17, Service bulletin: ENGINE. MIL\-On and/or Engine Oil Leak
- [113241](/bulletins/11035082.md), 2026-07-18, Service bulletin: ENGINE. SPARK PLUG \- NONE
- [113240](/bulletins/11035081.md), 2026-07-18, Service bulletin: ENGINE. SPARK PLUG \- NONE
- [112639](/bulletins/11034912.md), 2026-07-08, Service bulletin: ENGINE. THROTTLE BODY – NONE
- [112640](/bulletins/11034911.md), 2026-07-08, Service bulletin: ENGINE. THROTTLE BODY – NONE
- [112842](/bulletins/11034335.md), 2026-07-02, Service bulletin: ENGINE. BOLT \- HEX FLANGE HEAD
- [112814](/bulletins/11033965.md), 2026-06-18, Warranty extension: ENGINE. ID\-26\-24 Rev. A \(XC2\) 2.0L PHEV Engine \- Select 2024 \- 2025 Jeep Wrangler \(JL\) and 2023 \- 2025 Grand Cherokee/ Grand Cherokee L \(WL\)
- [112812](/bulletins/11033962.md), 2026-06-18, Warranty extension: ENGINE. D\-26\-11 Rev. A \(XC2\) 2.0L PHEV Engine \- Select 2024 \- 2025 Jeep Wrangler \(JL\) and 2023 \- 2025 Grand Cherokee/ Grand Cherokee L \(WL\)
- [112341](/bulletins/11033320.md), 2026-06-03, Warranty extension: ENGINE. ID\-26\-04 Rev. A Addition of 2.0L T4 Long Block or Complete Engine to the Powertrain Service Center \(PTSC\) Pre\-Approval Program To clarify when an OEM part and the Recall Campaign part should be used. The original bulletin announced the addition of the 2.0L T4 Long Block or Complete Engine \(Sales Codes EC1, EC2, and ECX\) to the Powertrain Pre\-Approval process.
- [112320](/bulletins/11033316.md), 2026-06-03, Warranty extension: ENGINE. Addition of 2.0L T4 Long Block or Complete Engine to the Powertrain Service Center \(PTSC\) Pre\-Approval Program \- ALL Dealers \(Rev. A\) To clarify when an OEM part and the Recall Campaign part should be used. The original bulletin announced the addition of the 2.0L T4 Long Block or Complete Engine \(Sales Codes EC1, EC2, and ECX\) to the Powertrain Pre\-Approval process for ALL dealers.

JSON: [/v1/bulletins/11020846](/v1/bulletins/11020846)

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