Here's what you should do:
1. Diagnose the Problem: The SES light is triggered by a problem detected by the car's onboard diagnostic system (OBD-II). You need to find out *why* the light is on. You have a few options:
* OBD-II Scanner: This is the best option. A relatively inexpensive OBD-II scanner (available at most auto parts stores) can be plugged into your car's diagnostic port (usually under the dashboard) and will read the trouble codes. These codes will give you a clue as to what's wrong.
* Auto Parts Store Check: Many auto parts stores will scan your car's codes for free.
2. Fix the Problem: Once you know the code(s), you can research the problem online or consult a repair manual. Fix the underlying issue. This might involve replacing a sensor, fixing a leak, or addressing a more significant mechanical problem.
3. Clear the Codes (After Repair): *Only after* you've fixed the problem causing the SES light, you can clear the codes. There are several ways to do this:
* OBD-II Scanner: Most scanners have a function to clear trouble codes.
* Disconnect the Battery: Disconnect the negative (-) battery terminal for about 15-20 minutes. This will often clear the codes, but it's less reliable than using a scanner. Note: This method might also reset your radio presets and other settings.
Important Considerations:
* Don't just reset the light: If you reset the light without fixing the problem, it will likely come back on. Ignoring the issue could cause more serious damage to your car.
* Professional Help: If you're not comfortable diagnosing and repairing car problems yourself, take your Grand AM to a qualified mechanic.
In short, resetting the SES light is the *last* step, not the first. Focus on finding and fixing the cause of the problem.
