2011 Forester w/blinking cruise, CEL and Yellow traction control on, what causes this?

For my 2009 Forester, those lights meant a failing catalytic converter. This was at 3 years old and 30K miles, so it's possible even in a late model, low-mileage car. I would have the dealer check it. One thing I learned after many repairs was the lights are always right - don't let a mechanic rest them without finding the cause.