It can cause several problems depending on the vehicle.
shifting problems.
some will dump the excess fluid out vaccumm hoses.
it can cause leaks do to pressure from excessive fluid.
I suggest draining some. most of the time it is easy. just like your oil there is a drain plug.
Transmission oil over-filled.
IF you have over filled the transmission this will cause it to bubble, this could cause serious damage, drain and refill with the proper ammount.
There is no such thing as "transmission oil" there is only transmission fluid, but but over filling the reservoir could cause serious damage to your transmission..
It will spill?
Your Polaris Sportsmen 600 transmission can be filled with any SAE certified transmission fluid. The manufacturer recommends that you do not over fill the transmission.
If you overfill anything over the limit you can seriously harm the unit you're filling. Fluids and metals expand and shrink when hot/cold, so it needs some space to move. >If you overfill your transmission you can blow gaskets and seals, aka lots of unnecessary work, time and money.
The pan gasket could be leaking ( tighten mounting bolts or replace gasket ) Filler pipe rubber seal , Transmission oil lines ( tighten , replace ) Speedometer connector ( replace o-ring ) Some makes have a transmission vent pipe ( transmission over filled ) Output shaft seal damaged (replace)
You could have had alittle over fill spill on something hot. I would suggest you check the coolant level to make sure there the same amount of what you filled
It is possible. You need to check the codes to know for sure.
Manual transmission: Clutch Automatic transmission: possibly low transmission fluid
The fluid can foam and cause slippage and/or blow out seals.
your transmission over heated take it to a shop and get it checked out. it could be nothing more than driving it hard on a hot day. but most likely somthing is wrong. i.e. a clog in your transmission cooler lines that if not repaired now could ruin your transmission.