They haven't recalled them because NHTSA www.nhtsa.gov hasn't gotten enough complaints to warrant an investigation and forced them to recall. If you go to their website there is a form to fill out for a complaint. I am having the same issue and lodging a complaint with them for that, a freezing radio screen and the paint bubbling on the hood and urge you to do the same on any major issues you have encountered. This transmission has had recalls on other vehicles I believe prior to the reintroduction of the Pacifica in 2017. Honda is also having issues with the same ZF 9HP transmission in their Odyssey's equipped with the 9 speed. You can google ZF 9HP and read all of the articles on the transmission but it's more excuses than solutions.We are having the exact same problem. Service did something in July that they said fix it but the jerking started again. I’m at a loss as to why Chrysler has not recalled the 2017 models to replace the transmission.