What might cause my 2016 Dodge Dart check engine light to come on?

The 2010 Dodge Dart check engine light (CEL) may come on for a number of reasons, such as a loose gas cap, a defective oxygen sensor, a spark plug or a coil, and catalytic converter issues. Usually, the most common source is the o2 sensor, which tests the oxygen level in the exhaust and, when the system is not functioning, illuminates the CEL. The first thing You need to do is inspect to see if the gas cap is secure and is not broken since it is the easiest to repair. Over time, the catalytic converter will get clogged with the chemicals and debris that would allow the engine light to be switched on. The most effective way to figure out what the problem is would be to use an OBD diagnosis instrument to identify the problem. If You don't have a scanner, You should have the inspection done by a dealership or a vehicle repair shop.