Here's what you should do:
1. Diagnose the problem: The most crucial step. You need to find out *why* the check engine 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 read the diagnostic trouble codes (DTCs) stored by your car's computer. These codes will give you a clue about what's wrong. You can then look up the codes online to get more information.
* Auto Parts Store: Many auto parts stores will read the codes for free. They may even be able to offer some advice on the likely cause.
* Mechanic: If you're not comfortable diagnosing the problem yourself, take your Chevy to a qualified mechanic. This is the most reliable way to get the issue resolved.
2. Repair the problem: Once you know what's causing the light, fix it. This might involve replacing a sensor, fixing a leak, or performing more extensive repairs.
3. Clear the code (after repair): *Only after you've fixed the problem* should you clear the check engine light. Many OBD-II scanners have a "clear codes" function. Some advanced scanners even allow you to perform more in-depth diagnostics. Disconnecting the battery's negative terminal for a short time (about 30 minutes) can sometimes also clear the code, but it's not as reliable a method as using a scanner.
Important Considerations:
* Ignoring the light is dangerous: The check engine light is there to warn you of a potential problem. Ignoring it could lead to more serious damage to your vehicle, reduced fuel economy, or even safety hazards.
* Don't just reset the light: Fixing the underlying issue is paramount. A simple reset without addressing the root cause is a temporary fix at best and could mask a serious problem.
In short: Don't focus on resetting the light. Focus on fixing the problem that's causing the light to illuminate. Then, and only then, clear the code.
