Standard Procedure - Starting Engine Without Stop Start Button
WARNING: This page is about a different car, the 2011 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
If the START/STOP button is inoperative remove the Engine START/STOP Button and insert the FOB with Integrated Key (FOBIK) in the receptacle. Refer to BUTTON, START/STOP , REMOVAL . If the FOBIK is not valid the message center displays WRONG KEY. If no message is displayed, it should still be possible to operate the vehicle by turning the FOBIK to the desired ignition position. The FOBIK battery needs to be replaced for the Keyless GO (KG) to operate. For further information regarding KG functionality, refer to the appropriate Electrical Diagnostic article.