While driving our 2014 forester xt 2.0 uphill on the highway at about 50 mph, the cel, hill-assist, eyesight-disabled and another warning light all came on. i pulled off the road, stopped and called the dealer, who said the car could be safely driven in for inspection as the cel was not blinking. apparently the cel light sets off a bunch more to get your attention. the obd codes the dealer pulled said the catalytic converter had failed (no further explanation was offered). they said a new one would be ordered and installed under warranty. so the dealer put in the new catalytic converter yesterday, and now the engine performs extremely poorly compared to before service. the electronic turbo boost gauge now shows negative boost (i.e., no activation) until over 20% throttle position in i mode (before, turbo boost was obtainable at 8% throttle). there is a humming sound (rather like the alternator belt noise ford vans make) that drowns out the engine purr when gently revving the engine in park and, when driving, the cvt shifts very irregularly and at much higher rpms in i mode (e.g., staying in one gear until tach hits 2000 before shifting where before the tach never went above 1500 at any speed unless we were in s/i or s# mode and shifting manually with the paddles). i have notified subaru of america of the situation and this car is going back to the shop first thing monday morning. *tr