Is this a good deal? CPO 2020 SLT, former Hertz Rental from Michigan

[weo1209]

So I received the Yukon back after a couple of weeks in the shop and a rebuilt trans. I got it back right before the new years, but noticing its quite sluggish, shift points are at diff RPM than i remember and chugging along. I read there is a break in period of 500-1000 miles, and just got done putting that on with a trip to the mountains this week. Should i have the dealership take a look at it in another week or so? Just seems off.

 

[B-train]

These transmissions learn your driving habits over time. Usually it should only take few drive cycles though. I would monitor it for a little while and see if it improves in a few more miles.