One problem related to o2 sensor has been reported for the 2017 Chrysler Pacifica. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2017 Chrysler Pacifica based on all problems reported for the 2017 Pacifica.
As of today, my new van has been in service 13 of the 15 days I have owned it. Not even 12 hours after bringing my new van home, I noticed some lagging/slight jerk after braking going around 20 mph. The next day, in a neighborhood (thank goodness) after turning right after a stop sign, the check engine light came on with a ding and blinking and I was unable to accelerate. I coasted into my friends driveway to put in park and the van began to shake. This went on a few min and because I was on my way to work, I left the driveway and continued on my way for 10 min. The check engine light came on two more times after that. After four days in service, they finally concluded it was the O2 sensors and replaced all of those. After it was fixed, my husband couldn't even make it home before the check engine light came back on. As of yesterday, computer modules have been updated and the check engine light still comes on and they can't pinpint where the misfire is happening.