It indicates that the car's onboard computer has detected a problem with the engine's emissions system.
You can't simply turn it off. You need to address the underlying issue causing it to illuminate.
Here's why you shouldn't just ignore the light:
* Potential for serious damage: Ignoring a Check Engine Light could lead to further engine damage, decreased fuel economy, and potentially expensive repairs in the future.
* Emissions issues: A faulty emissions system can contribute to air pollution and may even result in failing emissions testing.
* Safety concerns: Certain engine problems that trigger the Check Engine Light could impact the car's drivability and safety.
What to do when the Check Engine Light comes on:
1. Don't panic. The light doesn't necessarily mean a catastrophic problem.
2. Check your owner's manual. Some minor issues might be explained in your manual, but most likely you'll need to visit a mechanic.
3. Have the code scanned. A mechanic will use a scan tool to retrieve the diagnostic trouble code (DTC) stored in the car's computer. This code provides valuable information about the specific problem.
4. Repair the issue. Once the code is identified, the mechanic can diagnose and repair the underlying problem causing the Check Engine Light.
Important Note: Avoid using cheap "Check Engine Light" reset tools. These often erase the code without addressing the problem, which can mask a serious issue.
Remember, it's always best to consult a qualified mechanic to properly diagnose and repair any issues that cause the Check Engine Light to illuminate.