Surging question - 2008 Chevy Tahoe Hybrid

The car surges during acceleration. Mainly over 45 mph and rpms barely move. Seems like it only does it when car is in overdrive. If you use M4 it doesn't surge at all. Have put fuel injector cleaner in and doesn't help. Anyone have same problem or know what it could be?
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Yes I am having same problem and at lower speeds as well. I've had the car in to Chevy and they completed necessary "updates" but it did not help. It does not happen every time I drive, so it's very hard to describe and diagnose. I also have and issue when I brake, it almost feels like it slips and jerks, again does not happen all the time, do you experience this as well?