Clear all PCM codes.
To reset the engine light on a 2004 Chevy Tahoe, you can use an OBD-II scanner to read and clear any trouble codes. Alternatively, you can disconnect the battery by removing the negative terminal for about 15 minutes, then reconnect it. This may reset the engine light, but it’s important to address any underlying issues that caused the light to illuminate in the first place. Always consult a mechanic if you're unsure about the cause of the warning light.
That requires an engine scanner but it will not do any good to reset it if you don't FIX the PROBLEM that made it come on in the first place. It will just come back on again. Need to have engine scaned to see what is wrong.
How to reset service light on a 2004 grand am
The 2004 Chevrolet Tahoe has a V8 engine.
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.