Some owners of 2013-2018 Cadillac XTS vehicles equipped with a 6-cylinder engine may comment on an exhaust smell and/or leak, with the MIL on. DTC P0430 and/or P0420 may be stored. This may be due to a crack around the catalytic converter mounting flange. If cracks re found, replace the converter.
Caddy Time Out
This bulletin applies to 2014-2019 Cadillac ATS, CTS and XTS, and 2016-2019 CT6 vehicles. Some customers may comment that the engine stops running after extended idle with the shifter in the Park position.