If the check engine light is on there is a reason why?? You need to get a scan tool and plug it into the OBDII socket check the code with the scan tool so you can see what code pop up do the repairs then you can clear the light with the Scan tool. If you try and Disconnect the battery like everyone keeps saying the only thing thats going to Happen is if the light does turns off it will come back on if it see the same problem it did the first time!!! After about 50miles of Driving.
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.
To reset the computer on a 2004 Lexus RX330, disconnect the negative battery terminal and wait for about 15 minutes. This will allow the vehicle's computer to reset. After that, reconnect the negative terminal and start the vehicle. It may take a few minutes for the engine to idle smoothly as the computer recalibrates.
To reset the TPMS on a 2004 Lexus RX330, first ensure that all tires are properly inflated to the recommended pressure. Then, turn the ignition to the "ON" position without starting the engine. Press and hold the TPMS reset button, usually located under the steering wheel, until the TPMS indicator light blinks three times and then turns off. Finally, turn off the ignition, and the system should be reset.
Clear all PCM codes.