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CTS Coupe RWD V8-6.2L SC
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Navigation - Gen 9 OnStar(R) Modules Inop/ Battery Drain
Navigation - Gen 9 OnStar(R) Modules Inop/ Battery Drain
This TSB number 11-08-44-003, dated 09/12/11 has been superceded by TSB number 11-08-44-003A , dated 04/15/13