I cannot find the transmission dipstick to check trans fluid. Flashing arrow

it is very hard to find, it is on the lower front side of the transmission/toward the front-end of car, under the large radiator hose is a small harness line that hides this cap, it is very hard to see or locate unless u know exactly where it is located.

If this is an automatic transmission, it should be behind the engine cooling fan on the driver side. If this a manual transmission you usually fill from underneath the vechicle by removing the fluid level plug near the top of transmission pan.