PE25009
Intermittent Loss of Electric Power Steering
The Office of Defects Investigation (ODI) is opening this Preliminary Evaluation to assess the scope, frequency, and potential safety consequences of alleged defects related to the electric power steering (EPS) system in model year (MY) 2017â2018 Chrysler Pacifica vehicles. ODI has received 94 Vehicle Owner Questionnaires (VOQs) reporting a condition in which the steering system exhibits a sticking sensation during gradual turns, particularly when the steering wheel is positioned near the 11 o'clock or 1 o'clock position. Complainants allege that during these events, increased steering effort is required to return the wheel to center. In many cases, this is followed by a sudden reactivation of EPS assistance, which may result in an oversteer condition. This behavior could increase the risk of a crash, especially at higher speeds. ODI has identified multiple VOQs describing similar symptoms. This investigation will assess the frequency, root cause, and potential safety-related consequences of the alleged EPS malfunction. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
RQ24004
Loss of motive power due to an internal wiring connector short.
On July 22, 2022, the Office of Defects Investigation (ODI) opened investigation PE22-008 regarding complaints alleging a loss of motive power condition potentially due to a transmission malfunction in Model Years 2019-2021 Chrysler Pacifica Plug-In Hybrid Electric Vehicles (PHEV). On January 17, 2023, Fiat Chrysler Automobiles (FCA) issued safety recall (NHTSA Recall 23V-010) involving 2017-2023 Model Years (MY) Pacifica Plug-In Hybrid Electric Vehicles (PHEV) produced between August 12, 2016, through January 9, 2023. The recall states that the loss of motive power condition in these vehicles is caused by an internal transmission wiring connector that may short circuit, resulting in an unexpected engine shutdown. An unexpected engine shutdown can cause a loss of drive power, increasing the risk of a crash. In discussions with FCA on Recall 23V-010, ODI confirmed the recall was related to investigation PE22-008.  The remedy for 23V-010 is to update the Power Inverter module (PIM) and/or Instrument Panel Cluster (IPC) software to provide drivers a message stating âStop Safely - Vehicle Will Shut Off Soonâ followed by a chime and MIL, PRNDL blinking (on cluster and shifter knob), low SOC (State of Charge) warning and reduced power mode. The recall remedy does not replace the defective hardware that was described in Recall 23V-010, and the wiring connector short still exists on these vehicles. To date, ODI has received 132 reports for the population of vehicles subject to recall 23V-010. These reports allege a loss of motive power condition that reduces the vehicles speed, followed by dashboard warning lamps displaying messages associated with recall 23V-010. The presence of these warning lamps and messages indicates the vehicle likely had the recall remedy applied. Follow up discussions with FCA confirm their remedy does not prevent a loss of motive power, but instead limits torque to the engine and after an unspecified number of miles or period of time, the engine will shut down. When this occurs, FCA relies on the owner to transport the vehicle to a dealership after they experience a loss of motive power condition, at which time the defective hardware is replaced.  Furthermore, the dashboard messages introduced in the recall remedy may cause the driver to pull over in an unsafe location. Pulling over in an unsafe location may expose the occupants to undue harm. The Office of Defects Investigation is opening this Recall Query (RQ) to assess the adequacy, frequency, and safety consequence of the remedy for recall 23V-010. To review the ODI reports cited in the opening resume ODI report identification number document, go to NHTSA.gov.
RQ24001
Ignition-off high voltage battery fire (Remedy effectiveness of Recall 22V-077)
On February 11, 2022, Fiat Chrysler Automobiles (FCA) issued a safety recall (NHTSA Recall 22V-077) on all 2017-2018 Pacifica Plug-In Hybrid Electric Vehicles (PHEV) produced between August 12, 2016 through August 7, 2018. The recall addresses ignition âOFFâ fires that originate at the high voltage (HV) battery pack assembly. An ignition âOFFâ vehicle fire can result in an increased risk of occupant injury, injury to persons outside the vehicle, and property damage, with little to no warning. At the time of the recall filing the root cause of the vehicle fires was unknown and under investigation by FCA and suppliers. A software remedy designed to improve thermal event detectability by monitoring battery diagnostics is currently being installed on subject vehicles as an interim remedy. As of November 23, 2023, the root cause of the battery failure is unknown. From December 2022 through December 2023, NHTSA has received four consumer complaints (VOQs) alleging vehicle thermal events involving recalled 2017 and 2018 Chrysler Pacifica PHEVs. Additional information collected from complainants confirmed a thermal event originating near or at the HV battery pack after the Recall 22V077 remedy had been applied to the vehicle. Follow up meetings with FCA and suppliers in November and December 2023 to discuss the ongoing root cause investigation and post-recall remedy incidents indicated a recent increase in HV battery thermal events. Furthermore, a review of NHTSA complaint data indicated the post-recall HV battery thermal event complaint rate now exceeds pre-recall levels. The Office of Defects Investigation (ODI) is opening this Recall Query (RQ) to review the effectiveness of the original recall remedy, understand the root cause of the battery fires, investigate additional reports of Pacifica PHEV HV battery fires, and to increase monitoring of the manufacturer root cause investigation. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.