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December 1, 2011 Service bulletin

Gm: there is a gear whine from the rear when driving 30-60MPH

Cadillac technical service bulletin PI-0350 for 2011 Cadillac CTS.

Bulletin number
PI-0350
Component
Power train: driveline: differential unit
Summary
Gm: there is a gear whine from the rear when driving 30-60mph. Rm updated on 6/15/2011. Kb updated 8/1/11.

Owners of these vehicles have filed 22 complaints in the transmission category.

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