NHTSA recall 20V343000
Power Train · Chrysler (FCA US, LLC)
Details
What's wrong: Affects vehicles equipped with a two-speed power transfer unit (ptu). Relative movement in the power transfer unit (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…
Why it matters: A loss of drive can cause a vehicle crash without prior warning. A loss of the park function can cause unintended vehicle rollaway which can increase the risk of a crash or injury.
The fix: Fca us LLC 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. This recall began July 14, 2020.
Affected vehicles on MotorDeets
All model years NHTSA lists
2014 Jeep Cherokee, 2015 Jeep Cherokee, 2016 Jeep Cherokee, 2017 Jeep Cherokee.
Recalls can cover only some VINs. Check yours on NHTSA's official recall page for 20V343000.
Source: NHTSA recall records. Summary shortened; the official notice has the full text.