If your check engine light came on *after* an oil change, it's a coincidence or indicates a separate problem. Do not simply reset the light. Ignoring a check engine light is dangerous and could lead to further damage to your engine.
To address the light:
1. Get the code read: Use an OBD-II scanner (available at most auto parts stores) to retrieve the diagnostic trouble code (DTC). This code will tell you what triggered the light.
2. Address the underlying problem: Once you have the code, you can research the cause and either fix it yourself (if you're mechanically inclined) or take it to a mechanic for repair.
3. Clear the code (only after repair): Once the problem is fixed, *then* you can clear the code using the OBD-II scanner. Many scanners have this function built-in. The light will go off automatically after a few driving cycles if the problem is truly resolved.
In short: Oil changes don't require check engine light resets. If the light is on after an oil change, it means something else is wrong, and you need to diagnose and fix that issue.
