What does the little yellow light that comes on between my speedometer numbers

Hello, Is your vehicle equipped with a manual or automatic transmission? If it is a manual, this is probably the shift indicator light, and it likely comes on if you are maintaining a high engine speed in a low gear, or if you are accelerating rapidly and the engine speed is getting to the 5-6k RPM range.

The abs light is round, the esp light is a triangle. Both yellow. I don't recall if these had a shift light but you can check the owners manual to be sure. Alex