What does service engine soon light mean on a 2000 Chevy Impala?

The "Service Engine Soon" light (SES) on a 2000 Chevy Impala, like on most cars, means that the car's onboard diagnostic system (OBD) has detected a problem. It doesn't specify *what* the problem is, only that one exists. It could be something minor, like a loose gas cap, or something more serious, requiring significant repairs.

To find out the specific problem, you need to get the diagnostic trouble codes (DTCs) read. You can do this in a few ways:

* OBD-II Scanner: Buy a relatively inexpensive OBD-II code reader from an auto parts store. These plug into your car's OBD-II port (usually under the dashboard) and will display the trouble codes. You can then look up the codes online to understand their meaning.

* Auto Parts Store: Most auto parts stores will read the codes for free. They might even be able to offer some basic advice, although they'll likely try to sell you parts or service.

* Mechanic: A qualified mechanic can diagnose the problem and recommend the necessary repairs. This is generally the best option, especially if you're not comfortable working on your car yourself.

Ignoring the light is not recommended. Driving with a malfunctioning system could lead to further damage to your engine or other components, potentially causing costly repairs down the line.