I have an 08 civic si and just got an oil change done but in my gauges my oil life percentage still reads 15% and keeps going down I had the oil change at 30% . How do u reset it it to go back to 100% oil life?

 

Press the 'select' button until you scroll over to oil life. Press and hold 'sel' button until it blinks. Once it starts blinking, press and hold until it resets to 100%.

This is in your owners manual by the way.

 

Wow, I never knew this. Thanks.