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Service bulletin 0900621

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 id10223374
Published by NHTSA2022-10-17
Manufacturer's number0900621
Manufacturer's date2021-05-28
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

NHTSA's summary

Incorrect Turbocharger Air Outlet Pipe Nuts This bulletin involves replacing the turbocharger air outlet pipe nuts. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set:P0299 - Turbocharger Underboost. The customer may also describe the following:An air leak noise from the engine compartment.

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, Turbocharger or supercharger

Trouble codes named

P0299

Vehicles listed
JEEP COMPASS2022

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

Other bulletins for the same vehicles and component
09006212023-01-17. Service bulletin. Incorrect Turbocharger Air Outlet Pipe Nuts This bulletin involves replacing the turbocharger air outlet pipe nuts. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set:P0299 - Turbocharger Underboost. The customer may also describe the following:An air leak noise from the engine compartment.