2020 Chrysler Pacifica POWER TRAIN,ELECTRICAL SYSTEM

This submission supplements my prior NHTSA ODI complaint regarding the same vehicle and loss-of-motive-power condition. On Nov 8, 2025, the vehicle experienced a loss of propulsion at highway speed, creating an immediate safety risk. The vehicle could not maintain speed and required evasive action with no propulsion to avoid traffic hazards. Following the incident, the vehicle was inspected and stored diagnostic trouble codes P0A3F-00 and P0A43-00 were retrieved, relating to drive motor position sensor / resolver signal loss or degradation. These fault codes are associated with loss of propulsion and indicate a propulsion control signal-path fault, rather than a condition resolved by software calibration alone. The vehicle remains available for inspection and is out of service at a dealership due to unresolved safety concerns. Since my prior ODI complaint, I provided formal written notice to the manufacturer describing the incident, the retrieved fault codes, and the safety implications, and requested a written response. Receipt was confirmed by USPS certified mail on January 6, 2026. No written response was provided, and repeated attempts to contact the manufacturer through customer service channels were not returned. The manufacturer authorized only a recall firmware update and declined to authorize or perform the intermittent wiring and resolver diagnostics identified in its diagnostic procedures for these fault codes. The firmware update does not inspect, repair, or replace the resolver, wiring, or related hardware indicated by the stored codes, and does not determine whether the underlying propulsion fault has been corrected. As a result, the vehicle has been out of service for more than two months, and the risk of another loss-of-propulsion event remains unresolved. This update documents the manufacturer’s non-response after notice and reliance on a software-only remedy that does not address the indicated propulsion system fault.

I purchased this van in March 2025, it was used about 62000 miles, but dealer said it was in good condition, no issues. In September 2025, a battery light came on, that also activated the Start/Stop could not be used and needed service as well as Service Shifter. I brought the vehicle in and they simply replaced the auxiliary battery and sent me on my way. On November 13th, I was driving and a battery light came on as well as the Stop/Start not available error, and then moments later said "Stop Safely Vehicle will shut off soon". Thankfully I was only moments from home, and made it safely with my 5 children who were also in the van. Obviously this is dangerous as the vehicle stopping while driving can kill myself, my children, anyone in my vehicle, as well as cars around me as I live in a busy area, Tampa, FL. This car had just been given a review in March when put up for sale, and I had brought it in for an oil change, as well as a motor mount replacement, and the aux battery change, before this. My car has been serviced multiple times and this should have been checked or errors/updates reviewed. This auto/stop start seems to be a key in the safety issues as well since that light comes on every time there is an issue. Now the dealer states they are going to replace my PDC, main fuse box, and see if that fixes the error, but I have read that this is an error in many Chrysler Pacificas and mine is another.

Component/System: The propulsion system of my 2020 Chrysler Pacifica Hybrid, specifically a suspected internal transmission wiring-connector short—the exact hardware defect identified in Recall 23V-010 as capable of causing sudden loss of motive power. In my case, both propulsion sources (gas and electric) simultaneously ceased providing power, leaving the vehicle unable to accelerate. The vehicle, its transmission, and all hybrid-system components are available for inspection upon request. When inspected at the Chrysler dealership, technicians retrieved a diagnostic trouble code they acknowledged corresponds to the known wiring-connector short condition. This code was present before any recall procedures were performed. Safety Risk: I was traveling at highway speed with my family, the vehicle abruptly lost all motive power and began decelerating without my ability to maintain speed. I was forced to coast to the shoulder while surrounded by faster-moving traffic, exposing me and other motorists to the danger of a high-speed rear-end collision. Dealer Confirmation: The Chrysler dealer confirmed the presence of the wiring-connector-related fault code and agreed that it aligned with the recall defect pattern. However, they performed only the software update required under Recall 23V-010 and informed me that they would not undertake further inspection or physical diagnosis unless I paid out-of-pocket, despite the safety-critical nature of the failure. They are ignoring the fact that the physical underlying defect is not fixed by the software update, much to my frustration. With this unfixed, the car is not safe to drive IMO. Inspection: The vehicle has been inspected by an authorized Chrysler dealer. No additional parties have inspected it. The dealer did not examine or repair the wiring harness or connector itself, refusing my request to do so. Warnings/Symptoms: A hybrid/electrical-system warning message appeared moments before the shutdown. No prior symptoms

The entertainment system when super cold outside the screen goes black and does not work. The issue has made it difficult then to change heating and cooling settings and utilize the rear view camera and other safety features of the car. The dealership was able to update it to fix it once then the other two times it came back on before the appointment for the dealership. The auto/stop start malfunctioned while waiting at light.putting my whole car in park and locked up until I turned it off and back on. This occurred twice and put me at risk with being on busy roads in the day. Dealership was able to fix with a new battery. In the past and currently the car has shifted with a Jerk or lunge type movement making the driver worried and concerned about hitting cars around them due to this. The dealership replaced a transmission gasket but still does this and have not been able to find the issue on 3 other occasions. The car also is now not shifting properly creating a low humming grind type sound when driving on the highway and the brake pedal feeling weird. This has delayed speeding up and slowing down creating major safety concerns when driving on the highway. The dealership has not been able to replicate yet due to only driving on town roads and not the highway at this time.

I came to a stop at a stop sign yet again & the emergency brake engaged & put the car in park & shut itself off. I’ve lost count of how many of these forms I’ve filled out & how many times it’s happened and NOTHING IS GETTING SOLVED!!

In August 2022, while traveling on the interstate I received a warning that the vehicle was experiencing a power failure. It subsequently shut down while traveling at highway speeds. I was able to navigate off an exit that happened to be immediate and coasted downhill off the exit ramp to a safe spot. I was unable to power the vehicle off for approximately 10 minutes. Once able to power the vehicle off and keeping it off for a few minutes, I restarted it. The check engine light was lit but drivable. The dealer replaced the entire transmission. In January 2023, the dealer completed the recall associated with the vehicle. On 1 January 2024, while driving approximately 60mph, I received notice that the vehicle would shut down and to pull over safely. Upon turning the vehicle off and back on, the check engine was lit but drivable. The vehicle is currently with the dealer again.

When pulling up to a stop light the car shuttered and shifted into park and engaged the parking brake with no warning. Then it said safe hold temporarily disabled as well as the auto start stop light on the dash came on