2018 Chrysler Pacifica Electrical System

After safety recall 73B was performed on my 2018 Chrysler Pacifica Hybrid on 11/24/25, the vehicle's check engine light illuminated. Code U0412 is identified as a 'stored' code upon pulling OBD information. This is described as "Invalid Data Received From Battery Energy Control Module 'A'" indicating failure of the high voltage battery pack and its control system. The HV battery is available for inspection upon request. My safety and the safety of others are at risk because the recall was issued to prevent a battery fire. The symptoms my vehicle is exhibiting are precisely the kinds of faults the recall's software update is supposed to detect. The check engine light, appeared within days of the recall service. This strongly indicates the recall procedure, specifically the mandatory battery integrity test, was not completed correctly, and/or that there is a failure in the underlying recall procedure itself. This is a widespread issue, with numerous owners reporting the same post-recall failures to their dealership, online, and to Chrysler Cares customer service without satisfactory resolution.

After safety recall 73B was performed on my 2018 Chrysler Pacifica Hybrid on 02/03/2025, the vehicle's check engine light illuminated and it began experiencing charging failures. The component that has failed is the high-voltage (HV) battery pack and its control system. Diagnostic scans performed by a Chrysler dealer on [Date of diagnosis] confirmed trouble codes, including U0412, which indicate a critical fault within the battery system. The HV battery is available for inspection upon request. My safety and the safety of others are at risk because the recall was issued to prevent a battery fire. The symptoms my vehicle is exhibiting are precisely the kinds of faults the recall's software update is supposed to detect. By refusing to provide the full remedy, the manufacturer has left an unresolved fire hazard. The problem was confirmed by dealer diagnostic reports. However, both the dealer and Chrysler have refused to replace the defective battery under the recall. Their denial is based on [indicate reason for denial]. The first warning signs, including the check engine light, appeared within days of the recall service. This strongly indicates the recall procedure, specifically the mandatory battery integrity test, was not completed correctly by the dealership. This is a widespread issue, with numerous owners reporting the same post-recall failures online and to Chrysler Cares customer service.

The hybrid battery system is malfunctioning. I am not at risk. I am repeatedly getting U0412 error code, indicating a problem with voltage in the hybrid battery system. It only happens intermittedly. I have taken it into the dealer when the check engine light is not on (unfortunately), and they did not find any issue. One time while driving at highway speed, I did get an immediate red message saying "check hybrid system". It went away with the check engine light remaining on for about an hour. This has occurred after (and I think because of) the 73B recall.

My van completely shut off, and all lights on the gear shifter stopped working. Yes, it is available for inspection until the gear shifter is replaced, as recommended by the dealership. The van lost power just as I lifted my foot off the brake to proceed into an intersection. This sudden shutdown created a traffic backup behind me and could have put me and others in danger had I entered the intersection. The issue has only occurred once for my husband while driving but has not been officially reproduced or confirmed by a dealer or service center. Yes. I took the van to the dealer, who suggested replacing the battery and the shifter. I replaced the battery and ordered the shifter, but the second failure occurred after the new battery was installed. In addition, I’ve noticed a continuous clicking sound coming from the van after it is turned off, which does not stop for approximately 5 minutes. There were no warning lights or messages before the failure. After the van shut down, the “start assist” light came on, and it did not turn off until about four days after the battery replacement.

The battery of my hybrid electric minivan was damaged during a recent factory recall, and Chrysler is refusing to correct the problem. Instead, they’re trying to charge me for a new battery. Here’s the background. I recently received a recall notice (73B) for my 2018 Chrysler Pacifica hybrid minivan that warned of a possible vehicle fire. I was advised not to recharge the van and to park outside and away from structures. In January, I took the van to Russ Darrow Chrysler in the Milwaukee Auto Mall to address the issue. The check engine light came on shortly after the recall work was complete (trouble codes U0412 and P0BBE). I took the van back to the dealership as soon as possible. I was told there was a serious problem with the high-voltage battery and that it may need to be replaced. Chrysler refused to authorize the repair, so the dealership cleared the codes and released the van back to me. On [XXX], the van lost all power while my wife was merging onto a busy highway. She managed to pull over, and we had the van towed back to the dealership. The van has now been at the dealership for over 4 months. Chrysler is still refusing to fix the problem. I have since learned that there are many customers experiencing similar battery failure following the 73B recall. The Pacifica Forums (link below) details over 80 customers experiencing nearly identical battery failures after bringing their vehicles in for this recall. My safety and the safety of others are at risk. The symptoms my vehicle is exhibiting are precisely the kinds of faults the recall's software update is supposed to detect. By refusing to provide the full remedy, the manufacturer has left an unresolved fire hazard as well as the risk associated with the sudden loss of propulsion. Thank you, [XXX] [XXX] Link: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Quirk Chrysler Dodge Jeep RAM Of Dorchester refused to perform Recall 73B/24V-536 on my restricted-title Pacifica (reconstructed), citing Chrysler policy. That policy doesn’t exist in the recall bulletin. I need the BPCM software update and any necessary battery replacement under the recall.

Odometer Fraud. The contact purchased a 2018 Chrysler Pacifica. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 42,000 and at the time of registration, it was discovered that the mileage was 110,000.

After the 73B recall was performed on my 2018 Chrysler Pacifica Hybrid, the vehicle began experiencing persistent check engine lights and charging issues, especially during charging. Diagnostic scans revealed codes U0412 (invalid data from battery energy control module) and P0BBE (hybrid battery pack voltage variation), both directly related to the high-voltage battery system. These issues began within days of the recall and escalated, with the battery fault becoming permanent by late May 2025. The recall was issued due to a risk of fire from the high-voltage battery, caused by defects that can develop over time. The recall remedy included a software update to monitor for dangerous battery conditions and disable charging if a risk is detected, as well as inspection and replacement of the battery if necessary. My vehicle’s post-recall symptoms—persistent warning lights and charging faults—are exactly the type of problems the recall is meant to detect. The problem was confirmed by diagnostic data and scan reports, which were sent from the dealer to Chrysler’s technical support (STAR), but the vehicle itself was not physically inspected by the dealer or STAR. Both refused to authorize battery replacement, citing the contradicting STAR report, despite clear evidence of battery failure and the recall’s stated purpose. The battery and related components are available for inspection upon request. My safety and my family’s safety are put at risk, as the recall specifically warns owners not to charge or park the vehicle near structures until the remedy is complete, due to fire risk. Multiple other owners have reported similar post-recall battery failures, indicating a broader unresolved safety issue. Chrysler has not provided a satisfactory resolution, and the vehicle continues to exhibit battery faults and charging issues after the recall remedy.

The contact owns a 2018 Chrysler Pacifica. The contact stated while driving at an undisclosed speed, the vehicle stalled and lost motive power. The vehicle was restarted and driven to the residence. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the dealer where it was diagnosed with starter failure. The contact was informed that the starter needed to be replaced. The vehicle was not repaired. In addition, the contact stated that the failure was persistent and had been ongoing for several years. The contact stated that an unknown recall was performed previously, and the battery was replaced. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 70,000.

The shifter nob will not turn on and move out of park. When I open the glove box and tap on the CAN-C Bus star connector the nob will then turn on. Other issues also with electrical throughout van dealing with the CAN-C such as driving and then it shifts very hard. And door not closing on the side.

Back in January While driving and stopping at a red light the warning light appeared that the stop/start function was unavailable. The warning "electronic service" appeared and went away. While stopped at a red light the vehicle turned off with no other warning. This put me at serious risk with my children in the car for an accident. After a minute I was able to turn my car back on get hhome. I had my vehicle serviced and had a new main battery put in. Now in June the same warning came on again. I have to pay hundreds of dollars just to get a diagnostic report. This is the second time in less than 6 months. This is putting my safety and the safety of my family at risk.

The contact owns a 2018 Chrysler Pacifica. The contact stated that since 2019, the "Auto START/STOP feature unavailable" message was displayed on the instrument panel. Due to the failure, the vehicle intermittently failed to start, the vehicle was jerking and hesitating while depressing the accelerator pedal, and the vehicle also shut-off unintendedly while driving at various speeds. The vehicle had been towed to a dealer on several occasions and the auxiliary and the main batteries replaced; however, the failure returned approximately a year and a half later. To prevent the failure from recurring, the contact disabled the Auto START/STOP feature to prevent the vehicle from stalling. The contact stated that numerous repairs had been performed on the vehicle and that the only other solutions would be to replace the transmission, perform a software update or replace a possible unknown sensor. Additionally, the contact stated that while turning off the vehicle there was an abnormal knocking sound coming from the engine. The manufacturer was notified of the failure and the contact was given a case number. The vehicle was not repaired. The failure mileage was approximately 64,000.

There was a fire of unknown origin within the van. The fire was self extinguished and contained to the inside of the vehicle. No one was in the vehicle at the time of the fire, and it was found about 45 minutes after leaving the vehicle parked.

The contact owns a 2018 Chrysler Pacifica. The contact stated while driving approximately 70 MPH, the message that the "Vehicle Will Shut Down" was displayed and the vehicle stalled. The contact was able to call for help and had the vehicle jumpstarted. The contact stated that the vehicle failure was intermittent but became a recurring failure. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 118,000.

While driving on the highway, the car suddenly had a flash of start/stop system and then car stalled as soon as I moved to the exit lane. Once I stalled I had to stop car. Wait several minutes, and try to restart car. After several attempts and me blocking busy traffic, it restarted. This happened repeatedly even after technician said they cleared codes.

Frequently replacing axillary battery due to a power draw from the sliding drivers side passenger door. The door has a short in the wiring that has killed the battery and drained the main battery no less than 6 times since owning this since brand new in 2018. Vehicle had been stranded on roadways twice, gas station line once, and parking lots three times due to this short in the passenger door. Since removing the fuse for this door we have had no issues, except the sliding power door is now a manual door.

The contact owns a 2018 Chrysler Pacifica. The contact stated while driving approximately 40 MPH, the vehicle stalled. The contact stated that there was no warning light illuminated. The contact stated that the power steering and braking functionality were inoperable. The contact had the vehicle towed to a dealer. The dealer diagnosed the vehicle and determined that the batteries and the alternator needed to be replaced. The vehicle was repaired. The contact researched online and related the failure to NHTSA Campaign Number: 19V348000 (Electrical System). The manufacturer was not informed of the failure. The failure mileage was 104,417.

Suddenly our Pacifica would not start and started cycling through over a dozen error messages. We were finally able to get the vehicle to start and took it to the dealership. They confirmed that the star connector needs to be replaced. After looking at many forums, this appears to be a fairly common issue among the early hybrid pacificas, to the point that I felt I should report here, especially given the recalls that have already happened due to the electrical system in the car. We just got the last recall done in August and already we now have a ~$1000 bill to repair the electrical system again. Please have someone look into how many of the pacificas need this particular connector replaced given the prevelance of people with the same issue online.

The service electronic stability control warning is populated after the vehicle stalled while driving on the freeway. The vehicle often jerks and stalls when taking off or driving at slow speeds but this is the first time at freeway speeds. This early caused an accident for me and my family.

I HAVE PROBLEM DETACTING COMPUTER FOR STATE INSPECTION IN TEXAS, ITFAILED INSPECTION DUE TO NOT DETACTNG COMPUTER

This vehicle has been towed to the dealership for service for a 5th time! Lights of all systems start flashing as not available. This time I had loss of power driving. I got off a main road, but was not able to put the car into park or engage emergency brake as no systems were available!! I sat with my foot on the break while the “p” for parking flashed and the engine just wanted to rev. I have pictures that tell some of the story. It took 40 minutes for the car to recognize that it was in park (or reset). They’ve already had this car in September of 2022, October 2022 two separate incidents, and then again for an entire month from November-December, with no loaners or funds towards rentals. Last week the car lit up the same way, but this time I was not in my neighborhood, but I was on a main road! Not being able to have power was frightening, but not being able to put that car into any gear for 40 minutes is not acceptable.

I am aware of the recall on this vehicle. In addition, I received a phone call and email from Chrysler stating the following: "Hello Mr./Mrs. I have attempted to get ahold of you to schedule your Z11 Recall appointment for your Pacifica PHEV. You should have recently received an important recall notice from FCA detailing the steps needed to repair your vehicle and ensure the safety of you and your passengers. If you would like me to continue to assist you with the appointment, please give me a call at 8009921997. We encourage you to schedule this service appointment as soon as possible. If you prefer to schedule the appointment by yourself, ask for the Z11 point of contact at the dealership, and be mindful that the repair takes 2 days to complete. Please be advised that I have closed your case. Thank you for being a valued Chrysler customer. Chrysler specialist [XXX]" I called two local dealerships who both said they cannot schedule because they do not have the equipment to do this repair. They said they are unaware of this central Chrysler communication. I emailed a reply to the address above to reopen the case, but they have not replied. Please help! INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

When car is shut off, there is a mechanical/thrumming/grinding sound that you can hear coming from the center of center console, quite possibly carried through the vents. Very rhythmic, but sometimes not, can go on for several minutes, sounds like it could be an opening and shutting of a fresh air vent, does not sound good, like it could be overheating a small electrical motor that could overheat and start a fire. Not clear what stops it, maybe an overheat sensor, when it stops there is a releasing/settling sound that is longer than the clicking/moving/servo motor kind of sound that happens continuously. Happens VERY regularly, not every time, sometimes only lasts a few seconds, sometimes several minutes. Can be heard from outside the vehicle, too. I captured a video that has the sound in it see https://youtu.be/tDlwzWUmJv4.

I was driving and pulled up to a stop light. The car all of a sudden turned off. I had to place the car in park, and reset. The error light said to service the auto start stop feature. This is the third time the car has turned off in the middle of driving.

Dear Sir or Madam, There was a recall on our vehicle for the Battery Cables. It was supposed to fix the Stop/Start on our car. Prior to getting the Recall done, our car didn't restart at a stop light/sign causing us to put it back in park and restart the car. We went to have the Recall done and were told that that would not fix the problem, we needed to buy the second battery. We did - costing us over $200. I can ask for the bill for this if it is needed. I could not find it in my files. A couple of months later it started again at the stop light/signs. We took the vehicle back and they said a code was coming up under the hood and that would be no charge. They called us on 10/4/22 and said we need to purchase a switch - labor over $200 plus parts. What are we required to do to have this fixed as part of a Recall? Thank you for your time. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).