* OBD-II Scan Tool: This is the most common and reliable method. You can purchase a relatively inexpensive OBD-II scan tool from most auto parts stores. These tools plug into the OBD-II port (usually located under the dashboard) and allow you to read and clear diagnostic trouble codes (DTCs). Follow the instructions that come with your specific scan tool. Many have straightforward menus to clear codes.
* Professional Mechanic: A mechanic will have the necessary tools and expertise to properly diagnose the problem that caused the fault codes in the first place, *in addition* to clearing the codes. This is often the best option, as simply clearing codes without addressing the underlying issue will likely cause them to reappear.
Important Considerations:
* Underlying Problem: Clearing the codes without fixing the underlying problem that caused them is only a temporary fix. The check engine light (or other warning lights) will likely return. Diagnose and repair the cause of the codes.
* OBD-II Port Location: The OBD-II port on your 2000 Buick Park Avenue is usually located under the dashboard, near the steering column. You may need to remove a small access panel to reach it.
* Code Meaning: Before clearing the codes, *write them down*. This information is crucial for diagnosing the problem. Many scan tools will display a description of the code along with the code number. You can also use online resources to look up the code meanings.
In short, get a scan tool or visit a mechanic. Don't just rely on clearing the codes without understanding the cause.
