I have a 2012 Jeep Grand Cherokee, just hit 100,000 miles. Pretty much no issues other than a few small cosmetic dings.

Took the car to Carmax tonight to get an appraisal, the online appraisal was $8K. They took it out for a drive and came back and said that the car is having “shift issues” and they think the transmission might be failing. Based on this they dropped the appraisal down to $3.8k.

I asked for an explanation and they said the tester heard a whining from the transmission that went away when they put the car in neutral. I tested this on my ride home and heard no difference. Also looked up some symptoms and my car has none of them, and it actually said the car would be noisier in neutral.

Does Carmax know what they are talking about, or should I take it somewhere else?