We have a New Holland TN75 tractor that is either a 1997 or 1998 . There is a yellow warning light that sometimes comes on when going up a hill. It is a blinking light and just started yesterday. It is a circle with an exclamation point inside with parathesis on the outside of the circle. Can you tell us what this light is for. We lost our manual in a fire in 2023. We just had a new clutch put in this tractor this past summer.