2nd gen need help w/ transmission fluid

My question is pretty simple hope the community can help me with this and get my fit back on track

TRANSMISSION FLUID

Needs to be completely replaced?

Or

I can just add what’s missing of the Fluid so I can keep my transmission as it should be??

As you seen in the example pic my transmission fluid is lower than it supposed to be by a lot!!

My question is pretty simple hope the community can help me with this and get my fit back on track

TRANSMISSION FLUID

Needs to be completely replaced?

Or

I can just add what’s missing of the Fluid so I can keep my transmission as it should be??

As you seen in the example pic my transmission fluid is lower than it supposed to be by a lot!!