Relative movement in the PTU between the differential input splines and the transmission output shaft may cause some input spline teeth to wear off, which may eventually cause a loss of engagement between the transmission and the differential inside the PTU.
If this occurs, power cannot be transferred between the front wheels and the transmission which results in a loss of drive while the vehicle is in motion and a loss of the Park function while stationary.
A loss of drive can cause a vehicle crash. A loss of the Park function can cause unintended vehicle rollaway which can increase the risk of a crash or injury.
What to do
Chrysler will notify owners, and dealers will perform a software update that will maintain vehicle propulsion by engaging rear wheel drive and prevent rolling in Park by activating the electronic parking brake if a failed input spline occurs. If the subject part is not installed in a vehicle, it will be exchanged with a new part. All repairs will be conducted free of charge.
This recall is expected to begin July 31, 2020.
Owners may contact Chrysler customer service at (800) 853-1403. Chrysler's number for this recall is W48.