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Service bulletin 09-021-25

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11021559
Published by NHTSA2025-08-06
Manufacturer's number09-021-25
Manufacturer's date2025-07-29
NHTSA componentENGINE

NHTSA's summary

Turbocharger Oil Return Line Leak Customers may experience the following: ● Engine oil leak from the turbocharger oil return line This bulletin involves replacing the turbocharger oil return line.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
JEEP COMPASS2025
JEEP WRANGLER2025
JEEP WRANGLER 4XE2025 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20256172025-11-06. Engine
25V7660002025-11-06. ENGINE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
18-081-262026-10-16. Service bulletin. Not applicable to vehicles built for US market. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P0607 - Control Module Performance. Customers may also comment on one or more of the following: ● The vehicle will not start until the ignition is cycled for a second time. ● Engine malfunction (injection) warning lamp illuminated in the Instrument Panel Cluster (IPC). This bulletin involves reprogramming the PCM with the latest available software.
18-081-262026-10-16. Service bulletin. Not applicable to vehicles built for US market. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P0607 - Control Module Performance. Customers may also comment on one or more of the following: ● The vehicle will not start until the ignition is cycled for a second time. ● Engine malfunction (injection) warning lamp illuminated in the Instrument Panel Cluster (IPC). This bulletin involves reprogramming the PCM with the latest available software.
S26090000112026-09-17. Service bulletin. MIL-On and/or Engine Oil Leak
09-010-26 REV. B2026-09-10. Service bulletin. Not applicable to vehicles built for US market. Oil Leak Through The Rear Crankshaft Oil Seal (Flywheel Side) Customers may comment on the following: ● Oil Pressure warning light illuminates. ● Engine oil is leaking onto the floor beneath the vehicle This bulletin involves inspecting for oil leaks and if necessary replacing the rear crankshaft oil seal (flywheel side)
9100363 Rev 32026-09-03. Service bulletin. Turbocharger Kit Please note that many turbo components are serviceable separately and full turbo replacement may not be required. If the turbo is being inspected for: Noise/Rattle: Inspect heat shield fasteners for looseness and check the wastegate actuator/linkage for binding. The actuator kit is serviced separately. Oil Leak: Inspect the turbo oil feed O-ring area for leaks. O-ring is serviced separately.
09-021-262026-09-03. Service bulletin. Not applicable to vehicles built for US market. Noisy Timing Chain Tensioner Customers may experience the following: SYMPTOM: ● A metallic knocking noise coming from the timing chain area during engine operation. This bulletin involves replacing the timing chain tensioner.
09-010-26 REV. A2026-07-23. Service bulletin. Not applicable to vehicles built for US market. Oil Leak Through The Rear Crankshaft Oil Seal (Flywheel Side) Customers may comment on the following: SYMPTOM: ● Oil Pressure warning light illuminates. ● Engine oil is leaking onto the floor beneath the vehicle. This bulletin involves inspecting for oil leaks and if necessary replacing the rear crankshaft oil seal (flywheel side).
1132412026-07-18. Service bulletin. SPARK PLUG - NONE
1132402026-07-18. Service bulletin. SPARK PLUG - NONE
1132712026-07-18. Service bulletin. CORE – HEATER