This bulletin applies to 2009-2012 Cadillac CTS-V series vehicles equipped with the Tremec 6-speed manual transmission. Some cases have been found where the clutch hydraulic system was contaminated with water.
This bulletin applies to 2013 Cadillac CTS-V equipped with a supercharger. A supercharger noise may be experienced at idle that sounds like marbles rolling around in the supercharger. Some may also describe this as an erratic rattle-type noise that sounds similar to combustion noise on a diesel engine.
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