If it was reddish in color that is just what you did.
go on bing.com
There is no drain plug assuming it is an automatic transmission it is drained when removing the transmission pan and changing the transmission filter.
There should be an opening which you can unscrew on the side of the gearbox
The transmission oil filter is in the transmission drip pan under the driver's side close to the front tire. there is no transmission filter. there is how ever a oil filter which is located on your bottom right or possibily left side of your motor. the transmission however holds trans mission fluid which can be drained!
if you change trans fluid REGULARLY like you should, flushing is not necessary
Have it drained out and change filters
Automatic transmission: Hyundai SP-III ATF. 8.2 quarts or 7.7 liters based on filling the system from totally empty. Replacement volume would best be based on the volume drained during change-out.
if you mean it wont move, perhaps you have drained the transmission oil and not the engine oil. this would cause it not to move.
You need to have it drained out.
who does that? Have the transmission drained immediately Any other liquids will severely damage the transmission.
If it is completely drained and flushed, about 9-10 quarts. If you just drained the transmission pan from the drain plug, about 4 quarts.
If you drained the pan, it will take about 4-4 1/2 qts to fill it. If you drained the whole transmission it will take more like 8 or 9.