Change Oil Soon Light

I got a 91 park ave and I just recently changed the oil but it seems that the change oil soon light will not go out considering I did the resetting procedures. Could it be a sensor or a oil pump?

Did you hold the reset button until the "change oil soon" light flashed three times?

Yep, I did but it will stay on even when it flashed three times.

It seems like once the change oil soon light comes on on the first crank of the day, the climate control display blinks too??