2021 Chrysler Pacifica Fuel System problems

know that it falls under the warranty and they ordered a battery should arrive Dec 15 2026 at the earliest. Called the dealership to verify. They said yes its ordered. 2 days later Stellantis called us and said they canceled the order and it will not be covered under the warranty recall because of our van is over the milage for the recall. She told us to take it to another dealership to see what they say. That would be the 3rd time we done that and this is what they keep telling us. Our van is at the dealership off road because its a fire hazard and can not be driven and they will not honor the recall 52d, Id-25-13 for unlimited miles. Were stuck with no recall getting taking care of. The only option we have is to contact our lawyer and he will be handling this moving forward. Hopefully Stellantis and Chrysler will be 100% held accountable for there actions. I really dont understand how some people can sleep at night knowing they put people at such a high risk of dieing from their vehicle catching fire and expecting people to accept that as its ok. Big safety issue!!!

primary vehicle. Stellantis has finally agreed to order a new hybrid battery and cover our vehicle under the recall 52 and have the dealership mechanic install it 100% free. That was Monday. We have tried to reach out to our star case person Mariah, which she had a lady named Monica call us and we were not able to speak to her, she left a voice mail saying only on the message the part has been ordered? We reached out to the dealership mechanic and he has been more than helpful by letting us know the battery was ordered which he had to look it up when we called because Stellantis didnt not reach out to Auto Nation about our van being approved for the battery recall 52d replacement. Mariah told us last week that when we get approved for the battery that we would need to call her for them to get us a rental. We have been calling leaving messages and no response. Its now week 3 without a vehicle and we have children that have to go to school and the adults have to go to work. But have to ask other people to give us a ride and somtimes are not able to find a ride. When clearly the recall paper states that a loaner vehicle will be provided 100% and we will be takin care of. Please help with them honoring this recall all the way through until it is completed. This has become an inconvenience for our family of 8, because of their mistakes. Were asking you to look into this matter to help us and other people that are dealing with the same recall 52d on their pasific

52d but said its not covered under the recall, and we will have to pay out of pocket. We have been back and forth for over 3 to 4 months because Chrysler, Stellantis, & Mopar keeps denying the replacement of the hybrid battery because they say it passed after the check for the recall, our vin does not match for the recall, our van is over the warranty miles. The last call they gave us a new case # which this is our 4th one and told us to go take it back to the dealership and have them run a diagnosis again to see what it says. We did that and the same code comes back. The dealership opened a STAR case and told us to call Chrysler recall division. We did, she gave us a new case number and told us that a case manager will call us. In the mean time the dealership is waiting and has our van because its a fire recall and hoping that all of the above companies that are responsible for this recall make this right. Please help with this serious matter. Thank you

replacement of the high voltage battery pack, the chiller, the inter-loop heat exchanger, the battery cooling pump, and multiple replacements of the high temp 3-way cabin valve. I eventually traced the apparent cause to the high temp 3-way cabin valve routing engine coolant through the inter-loop heat exchanger at all times, causing the high voltage battery pack to overheat. If the vehicle is left sitting with the engine idling, the vehicle will shut down after less than two from cold. I installed a hose to bypass the heat exchanger in order to address the problem. The repair successfully kept the battery coolant temperature from rising, however, the vehicle still overheats and shuts down. I believe that this model of suffers from multiple design defects in the cooling system making it far more likely than other vehicles to experience a complete loss of motive power.

controller returned two stored codes: P1D43 (internal control module shut-off test monitoring time error) and U029A (lost communication with hybrid battery pack sensor module). U029A indicates the battery controller cannot communicate with the module that monitors individual cell voltages and temperatures. The engine and transmission controllers returned no codes. There were no drivability symptoms at any point. The pack charged fully and delivered normal electric range before and after the codes appeared. The dealer diagnosed the condition and the manufacturer approved a high-voltage battery pack replacement. Approximately 24 hours later the manufacturer rescinded that approval and instructed the dealer to clear the codes and return the vehicle to service to see whether the codes reappear. The dealer stated it had not seen an approved claim reversed in this manner. The dealer reports being unable to reproduce the codes after clearing; the duration and conditions of that retest have not been provided. I have requested the engineering findings and the basis for the reversal in writing and was told they are proprietary. The manufacturer has not provided the retest parameters. My concern is that the vehicle is being returned to service with a documented fault in the high-voltage battery monitoring system, on a platform subject to an open fire-risk recall, without the basis for that decision being disclosed.

refused to perform the recall. They stated that the manufacturer's diagnostic software (wiTECH) completely blocks the 52D software update from being uploaded if the P0E15 fault is present.I contacted FCA US Customer Care (Case Number: 97720299), and they officially replied that they will not issue a corporate override for their diagnostic software. They are conditioning the execution of a critical fire-safety recall on me privately paying for the repair of a separate known manufacturer defect (P0E15 heater), due to the vehicle's export status.This is a severe threat to public safety and an unacceptable corporate practice. A manufacturer should not be allowed to design diagnostic tools that block critical, life-saving safety recalls due to other unrelated factory defects, effectively forcing owners to drive potential fire hazards unless they pay for commercial repairs. I request NHTSA to investigate FCA US's refusal to deploy safety updates on vehicles with active P0E15 codes.

inverter performance. Used Stellantis Technical Service Bulletin 08-253-24 to diagnose (both modules were out of date) and complete the indicated updates. This is a known issue that has affected many vehicles (per internet forums and that Stellantis has created a TSB. It is an extremely dangerous situation causing the vehicle to enter "limp mode" and requiring the driver to stop in a matter of minutes. Stellantis should recall all potentially affected vehicles to update the modules proactively.

experiencing a recurring failure and is displaying active diagnostic trouble code P0A78 (Drive Motor "A" Inverter Performance), indicating a critical fault in the high-voltage hybrid propulsion system. Prior to the current failure, the check engine light illuminated, and the vehicle experienced propulsion system degradation. This failure mode risks a sudden shutdown of the hybrid drive system at highway speeds, creating a severe risk of rear-end collisions or being stranded in active traffic. The recurring nature of these transmission and inverter failures indicates a systemic safety defect in the hybrid propulsion system. The issue and the active P0A78 code have been pulled, reproduced, and confirmed by an authorized dealership (Diehl Automotive of Robinson), where the vehicle is currently held and available for inspection. The manufacturer has been notified via an open corporate case (#97399722).

in a no-propulsion condition. They also found the HVIL high-voltage connector loose and damaged. The vehicle was in the shop for 18 days for this issue. I picked it up on June 18, 2026, and within 24 hours the same loss-of-propulsion failure happened again. The vehicle is now back at the dealer. The dealer performed recall 52D and updated the BPCM software, but the failure still occurred immediately after pickup. This defect has been reproduced and confirmed by the dealership multiple times and remains unresolved. This is a serious safety hazard because the vehicle loses propulsion without warning and cannot accelerate in traffic.

they said it was PCM module and replaced it, and finally they replaced the transmission. The 4th visit, change of transmission, lasted a little over a year and then the issue arose once again! After paying $259 in diagnostic fees, they said I used a bad "charger"

minute and parked the vehicle and turned it off. Then restarted and drove for less than two minutes, but again the same warning ("Stop Safety. Vehicle will shut off soon") displayed; I turned it off again. After taking a few minutes break, I restarted it and it was showing 1% battery; it gave me a little distance to travel until unfortunately the same warning displays. Fortunately, this time I was close to a place where I can charge the battery. The battery got charged to 100%, partly on the night of March 27th and the remaining in the morning on March 28th. The second incident was on March 29, 2026, on Sunday afternoon. As soon as the battery level reached <1%, the exact the same warning ("Stop Safety. Vehicle will shut off soon") was displayed. I slowly drove the vehicle to the side of the road and called my insurance company; I reported the issue and requested them to tow the vehicle to a nearby Chrysler dealership. As of now, the vehicle is at the dealership parking waiting for diagnosis. Based on my initial conversation with the customer service person, they don't know if this is considered part of any recall or not. Not only was I stranded on the road because of the above incidents, not having the vehicle at the moment is straining me a lot - trying to handle personal and work schedules.

traffic. Diagnostic trouble codes were present related to the hybrid system and high-voltage battery, including P1D43, P1A21, U029A, and U0412. These codes indicate faults in the hybrid control system and battery communication. A Chrysler service department inspected the vehicle, confirmed the trouble codes, and returned it to me without repair because the issue was not immediately reproducible at the dealership. The vehicle has a history of similar intermittent issues, including prior loss-of-power events and repeated service visits for hybrid system faults. The condition is not consistently reproducible, but when it occurs it results in a sudden loss of motive power while driving. This creates a significant safety risk due to unexpected loss of propulsion in active traffic.

or overide the system with three kids with me in a busy traffic area. The vehicle has not reproduced the issue as of yet. The dash had multiple warnings for park system and service various items needed. this occurred 12/17/2025 with 70,000 miles.

thread also said they've also had exactly the same leak. The cause appears to be how this line is routed by the factory. it is resting against the coil and not secured in a way to prevent chafing. Result is extremely dangerous with fuel spraying down towards the exhaust. The part is available for inspection. Safety of my family was put at risk by fuel spraying towards hot exhaust while my wife was driving. She was unaware of problem until fuel smell just prior to arriving at home. Problem is easily reproduced. I spoke with Olympia Chrysler Jeep and the service advisor Corey, said he had seen this issue before as well. He also said because car is not under warranty and I don't have roadside assistance, towing would be at my expense. I have ordered replacement part and will install and secure it to prevent chafing. I will keep part to be availalbe for examination. There were no warning lamps, messages or other symptoms prior to the fuel smell.

risk because the coil pack is in close proximity to the spark plugs. When there is a spark and gasoline, fires and/or explosions tend to be the result. The technician stated that there had been no tampering with the components and that the gap between the fuel line and the coil pack is very small. I believe that the gap is too small because normal operation of a vehicle should never cause a hole to be rubbed into a fuel line due to it's proximity to the coil pack. Prior to the smell of fuel, there were no other warnings. I have included pictures of the faulty part.

assist with diverting traffic around me and to put safety cones out. I called the County Sheriff because I felt I was a safety hazard. When a Deputy arrived he and my Son In Law were able to push the car off the road while I steered. I was blocking traffic for about 30 minutes. I called a flat bed who towed the vehicle to the dealer. The issue was troubleshot to the Power Inverter Module (PIM) internally shorted causing the Main Battery Disconnect fuse to blow. The dealer replaced the PIM and the Main Battery Disconnect. This occurred on or about June 27, 2023. The dealer invoice is Aug 21, 2023. It took several weeks to get the part and repair. This issue has not re-occurred. At the time mileage was 29564, currently it is 48171.

this less dangerous road we sat for another 3 hours for a tow truck, managed to have the vehicle towed to the dealer which is indicating that they do not know exactly what the problem is and are replacing the hybrid battery in an attempt to fix it. We've seen many group messages about this issue and the common thread is that chrysler does not have a fix or know what to fix and that this issue will generally occur again. I have not received a repair invoice just yet as our van is still in the shop but will do what I can to update this report if possible.

interstate with wife and 2 kids in the care on an 85 degree day. We were able to make it off freeway with "Check engine light showing" but no other errors on the dash. We were able to drive home 7 miles and will tow the Pacifica to the dealer tomorrow. This is the second time this has happened and could have had a horrible outcome. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)