One problem related to crankcase (pcv) has been reported for the 2019 Subaru Ascent. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2019 Subaru Ascent based on all problems reported for the 2019 Ascent.
At 16462 miles on odometer, while driving on hi way at 65 mph vehicle lost power and started smoking severely from the tail pipes. Pulled over and shut off. Restarted several minutes later continued to smoke and would not move. Towed to dealer, they stated the pcv valve broke apart, Subaru wants them to tear down the engine to see how much damage was done. Still waiting for them to do anything, car is sitting outside in the service area not being worked on.