Here's what you should do:
1. Get the diagnostic trouble code (DTC): You'll need a scan tool (OBD-II reader) to read the code. Auto parts stores often offer free code reading services. The code will tell you *what* the car's computer thinks is wrong.
2. Address the problem: Once you know the code, you can research the likely cause. It could be something simple (like a loose gas cap) or something more serious (like a failing sensor or a malfunctioning component). Repair the problem.
3. Clear the code (after repair): After you've fixed the issue, many OBD-II readers can clear the code. Sometimes, after a repair and a few driving cycles (start the car, drive for a while, turn it off), the light will go out automatically. If not, use the scanner to clear it.
Important Considerations:
* Don't just clear the code without fixing the problem: The light will likely come back on, and the underlying issue could worsen, causing more significant damage and potentially expensive repairs down the line.
* If you're not comfortable diagnosing and repairing car problems yourself, take your Cavalier to a qualified mechanic. They have the tools and expertise to properly diagnose and fix the issue.
Resetting the light without fixing the problem is only a temporary solution and masks a potential issue that could become far more expensive to resolve later.
