How do you turn off check engine light Chrysler 300?

To turn off the check engine light on a Chrysler 300, you can start by checking for any underlying issues using an OBD-II scanner to read the trouble codes. If repairs are made, the light should turn off after a few driving cycles. Alternatively, you can disconnect the battery for about 15 minutes to reset the system, but this may also clear other settings. If the light remains on after addressing issues, consider visiting a mechanic for further diagnosis.