Customer reports that the Malfunction Indicator Lamp (MIL) is illuminated on the Instrument Cluster (IC). Diagnostic Trouble Code(s) related to Catalyst System Efficiency P0420-00 and/or P0430-00 are stored in the Powertrain Control Module (PCM). NOTE ? the concern detailed in this SSM is only applicable to Range Rover Sport vehicles (SVR) 2018 Model Year fitted with the V8 S/C 5.0L petrol engine (575PS)
