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July 11, 2017 Service bulletin

Engine

Cadillac technical service bulletin PI1234C for 2014-2016 Cadillac CTS, 2016 Cadillac Ats and 2014-2016 Cadillac XTS.

Bulletin number
PI1234C
Component
Engine
Summary
This preliminary information bulletin provides a procedure on a brief rattle or tick when revving the engine when the vehicle is in P (Park) or N (Neutral). The same rattle or tick can sometimes be heard at the beginning or end of a vehicle acceleration while in D (Drive).

Owners of these vehicles have filed 28 complaints in the engine category.

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