Method 1: Disconnect the battery
1. Turn off the engine and open the hood.
2. Locate the negative battery terminal (usually marked with a "-" sign).
3. Use a wrench to loosen the nut or bolt that secures the negative battery cable.
4. Remove the negative battery cable from the terminal and set it aside.
5. Wait for at least 10 seconds.
6. Reconnect the negative battery cable to the terminal and tighten the nut or bolt.
7. Close the hood.
8. Start the engine and check if the check engine light has been reset.
Method 2: Use a scan tool
1. Connect a scan tool to the diagnostic port of your Hyundai.
2. Turn on the scan tool and select the appropriate vehicle model and year.
3. Navigate to the "Trouble Codes" or "DTCs" menu.
4. Select the check engine light code and press the "Clear" or "Erase" button.
5. Turn off the scan tool and disconnect it from the diagnostic port.
6. Start the engine and check if the check engine light has been reset.
Note: If the check engine light turns back on after resetting it, it means that there is still an underlying problem with the vehicle that needs to be addressed. In this case, you should have the vehicle diagnosed by a qualified mechanic.
