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June 8, 2022 Service bulletin

Compressor assembly

Jeep technical service bulletin 9004407 for 2021 Jeep Grand Cherokee.

Bulletin number
9004407
Component
Suspension
Summary
COMPRESSOR ASSEMBLY, Air Suspension, Module ASCM replacement is rarely necessary. If any DTC is stored and able to be cleared, component replacement is not necessary. Please follow the service procedures to attempt to clear any active fault(s) which includes module hard reset, full CAN power down/sleep, or DTC clear in WiTech. Please contact FCA Redacted Content prior to any ASCM replacement at FCA Redacted Content If no response in 15 minutes, proceed with repair. Any new module requires a flash following installation regardless of whether the current part number is up-to-date .

Owners of these vehicles have filed 30 complaints in the suspension category.

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