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Porsche TSB #122-S9X3M-12
2015 Porsche Cayenne
Affected Component: ELECTRICAL SYSTEM: SOFTWARE
- Situation: Cayenne Diesel vehicles were equipped with undisclosed Auxiliary Emission Control Devices which are not permitted by emissions regulations. Action Required: Install updated engine control module (DME) software and transmission control module (Tiptronic) software to bring affected vehicles into regulatory compliance.
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