The check engine light is on because the ECU has detected a problem with the emissions system. If you reset the light without repairing the problem it will just come back on. Have the ECU scanned with an OBD2 scan tool which will tell you the code that has been set. This code will lead you in the direction of the problem. Once you repair the problem you can reset the light with the same OBD2 scan tool.
How to reset service light on a 2004 grand am
You have to reset it with a OBC scanner :-)
You can reset the 2004 Honda Accord check engine light by removing the instrument light fuse. The location of the fuse can be found on the inside cover of the fuse box.
To reset the engine light on a 2004 Kia Amanti, you can start by disconnecting the negative battery terminal for about 15 minutes. This will reset the vehicle's computer and clear the engine light. Alternatively, using an OBD-II scanner to clear the trouble codes can also reset the light. However, if the engine light returns, it may indicate an underlying issue that needs to be addressed.
Repair the problem then use an OBD2 scan tool to reset the light.
To reset the service engine soon light on a 2004 GMC Envoy you can remove the ECU fuse. ECU stands for electronic control unit.
Disconnect the negative battery cable for about two minutes and that should reset your check engine light.
Reset the Check Engine Light by disconnecting the battery for about 10 minutes.
The check engine light has nothing to do with an oil change. The check engine light is reset with a scan tool after repairing the failure that caused it.
Clear all PCM codes.
With a scan tool.
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