Where is the transmission fluid dipstick located at on a 2011 Chevrolet Malibu

There isn't one, to check trans fluid or to fill, find and remove the trans drain plug on the front of the trans case (near right hand axle seal). Remove vent plug assembly (top of trans case). With engine running and in park, fluid should dribble out. If not, add new fluid to the fill plug at the top of trans case (red cap) until it does. Be sure to use appropriate trans fluid, Dexron 3. Not including trans dipstick tubes is apparently becoming more common. Chevy in particular loves to cut every corner like this to save on production costs.