One problem related to o2 sensor has been reported for the 2018 Chrysler Pacifica. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Chrysler Pacifica based on all problems reported for the 2018 Pacifica.
While driving on a freeway, the engine started losing power and would not react to the gas pedal. In addition, the gear shift would not change when I tried to change it from drive to neutral. The car would purposely be slowed down by the engine as it was stuck in drive position. The created a dangerous situation as it was difficult to control car to move it into the emergency lane. After pulling over, smoke started coming out of the engine and vents. I was then unable to turn off the engine as the power button would not react when pressed. Per the dealership, the catalytic converters was clogged and overheated so needed to be replaced as well as the oxygen sensor. This should not have needed to be repaired in a car that is only 1. 5 years old and created a very dangerous situation on the freeway.