how you turn off,the service light(yellow light)
Meaning NOT the check engine light right? I'm pretty sure GM was the one to start this then several other companies started doing it too. To reset the maintenance light, put the key in and turn the ignition on (but don't start the engine), press the gas pedal all the way to the floor and release it 3 times in a row. This must be completed within 10 seconds of turning the ignition on. The light will blink a couple times or something and then turn off.
First, do the service (oil change, etc.) then with ignition off, push and hold the odometer reset button. Turn on the ignition (don't crank the engine over) and continue to hold the button. Several dashed lines will appear where the odometer display is normally. hold the button until these disappear. the light will come back on in about 4500 miles when you turn the engine on. It will stay on for a few seconds then turn off. When the light is on all of the time, you have reached the max oil change interval.
