The 12-volt isolator post fire recall, 20V-334, and its unusual instructionsmajor
- 3.6L Pentastar PHEV
A third fire-related campaign on the plug-in hybrid, entirely separate from the battery pack ones, and 2020 is the last model year it covers. Recall 20V-334, Chrysler code W46, covers 2017 to 2020 plug-in hybrids where 'the 12 volt isolator post located behind the driver's seat may develop high resistance', which NHTSA warns 'may result in the connection overheating, increasing the risk of a fire with the vehicle on or off.' The fix increases the torque on the post and installs a waterproof gasket, with the post and its cables replaced if they show contamination, free. The campaign record includes an instruction you will not find on any other Pacifica recall, and it explains what the engineers thought was happening: 'do not park these vehicles inside of buildings or structures, or near other vehicles. Additionally, keep liquids out of the backseat area, including but not limited to beverages, wet items, umbrellas, or bottled liquids that may leak.' In other words, spilled drinks in the second row could reach an electrical joint behind the driver's seat. In a van bought specifically to carry children and their drinks, that is worth knowing even after the repair, and it is a reason to look carefully at the carpet and trim behind the driver's seat for staining or past water ingress.
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Recall remedy (20V-334)