2011 Yukon Transmission issues

[YukonF]

Good Evening all, I have a 2011 Yukon with 124k miles. Today while driving, it acted like it jumped out of gear or shifted to Neutral. Pulled over to side of road and found it would not move in drive, reverse or any manual gears. I shut the vehicle off and restarted it and it shifted into drive and took off. I tried to drive the 2-3 miles home and it did the same thing a couple more times. Each time, turning it off and restarting without sitting for anytime and it would take off again. After restarting, it seemed to shift normally without any slip or stutter. As I got home, and messing with it in the driveway, I did notice a “pump whine” like sound. Fluid is normal range and appears to be normal clearish red color. Just curious if there’s any common problems I should check before calling the transmission shop.

 

[rdezs]

Have you tried changing the filter? And saying what's in the bottom of the pan? I would start there. Sounds like a fluid starvation issue. I like to eliminate the easy stuff first.