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April 1, 2008 Service bulletin

Service all wheel drive and/or all wheel drive off message displayed in dic, DTC C0394 set (inspect rear...

GMC technical service bulletin 08-04-21-003 for 2007-2008 GMC Acadia, 2008 Buick Enclave and 2007-2008 Saturn Outlook.

Bulletin number
08-04-21-003
Component
Power train: driveline: differential unit
Summary
Service all wheel drive and/or all wheel drive off message displayed in dic, dtc c0394 set (inspect rear differential wiring harness and repair, if necessary).

Owners of these vehicles have filed 857 complaints in the transmission category.

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