How do you turn off engine light on 2007 montana?

To turn off the engine light on a 2007 Pontiac Montana, first, you should address the underlying issue that triggered the light. You can check for trouble codes using an OBD-II scanner, which will help identify any problems. Once you've resolved the issue, you can reset the engine light by disconnecting the negative battery terminal for about 15 minutes, or by using the scanner to clear the codes. If the problem persists, the light may come back on, indicating further issues that need to be diagnosed.