Originally Posted by bcredliner

The plug to check the level of the transmission fluid is on the side and is also the fill hole. The fluid should be check at operating temp. At the proper level there should be a very small stream of fluid coming out. The vehicle should be level but not a problem with jack stands. Extremely easy DIY.

I disagree that the fluid is good for the lifetime of the transmission. I change the trans fluid and filter every 40,000 to 50,000 miles with brand specified by transmission MFG.