There’s a specific emission light or do you mean the check engine light? Is it running OK? Try turning it off and disconnecting the battery for a while, reconnect and drive again, note when the light comes back on.
If it’s the CEL and you can get access to a service manual, (online)the 2011 cars may still have a diagnostic plug (this is NOT the OBDII port)- there is a procedure to jump two pins which will put the CEL into diagnostic mode. The light will then flash a code which will tell you what is wrong.
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