A loud buzzing or whining when the transmission is in reverse may be caused by a regulator valve in the transmission valve body. A revised valve was released that does not resonate. Careful diagnosis should be performed because other causes can create the noise.
Regulator valve may cause noise when transmission is in reverse on Jeep Cherokee
Average mileage: 700 (400–1,000)
Drive Train affected: Automatic Transmission
6 people reported this problem
2016 Jeep Cherokee - Automatic Transmission 400 mi, Visitor
sounds like I have the same problem, I will be contacting the dealer tomorrow. I will try to follow up with there answer.
2016 Jeep Cherokee - Automatic Transmission 1,000 mi, Visitor
When in gear it makes a whining noise. So far all jeep has told me was that they are aware of the issue and are working on a resolution.