2019 Chrysler Pacifica: start-stop system problems

Filed Oct 13, 2026 · Electrical · FL

I am reporting repeated electrical failures affecting my 2019 Chrysler Pacifica Touring, including recurring auxiliary battery failures, stop/start warnings, dashboard malfunctions and electronic shifter faults. Despite multiple dealership repairs, the problem continues. August 22, 2023: Auxiliary stop/start battery replaced under Mopar warranty at Jim Shorkey Chrysler, as documented in subsequent service records. August 26–28, 2024: Following another stop/start warning, Ferman Chrysler tested both batteries and found both failed load testing. The main battery was replaced and auxiliary battery warranty work was documented. September 8–9, 2025: Stop/start warning followed by electronic shifter malfunction. Ferman Chrysler confirmed the auxiliary battery had failed and replaced it under warranty. July 7, 2026: Jim Shorkey Chrysler documented previous starting problems and reported battery health at 78%. October 13, 2026: On starting the vehicle, the instrument cluster flickered repeatedly, and multiple warning lights appeared. A Service Shifter warning followed, and the rotary gear selector indicator lights stopped illuminating. Gear selection remained functional, and the lights subsequently returned. Diagnostic codes included P00FD (Battery B state of charge), U145D-00 and U0402-00 (transmission control communication), U0432, U0418, C006A-54 and C2222-68, indicating faults involving multiple electronic systems. My concern is that repeated battery failures may be symptoms of an unresolved electrical defect affecting the electronic shifter, instrument cluster and communications between safety-critical control modules. This raises concerns about potential loss of gear selection or reliable vehicle information. The September 2025 dealership records document a similar combination of stop/start and shifter faults, demonstrating that this is a recurring problem. I request that the federal safety agency investigate this potential safety defect. I have retained dealership invoices.

Filed Sep 22, 2026 · Electrical, Engine · OH

My 2019 Chrysler Pacifica experienced repeated electrical/network communication failures. The first sign was erratic dashboard behavior and a check-engine light in our resort parking lot. We drove to Pep Boys, where it was evaluated and we were told it was okay to drive. We then drove to Chick-fil-A (.4 miles from Pep Boys). While stopped in the drive-thru in Drive with my foot on the brake, the vehicle began dinging, the engine revved, and multiple warning lights/messages appeared, including the check-engine light, red electronic throttle control warning, “Blind Spot Alert Temporarily Unavailable,” “Service Trans Stop Safely Shut Off Engine to Engage Park,” and “Stop/Start Not Ready.” After shutting it off, it would not reliably restart, and when it did, I could not shift it to move. The vehicle returned to Pep Boys, where DTCs U0001 (CAN C Bus) and U0401 (Implausible Data Received From ECM/PCM) were documented. It then went to a Chrysler dealership in Florida. They evaluated it and told us it checked out and was okay to drive. After leaving that dealership, the problem returned while my family and I were traveling at highway speed. The vehicle malfunctioned and began losing acceleration. I exited the highway. When I stopped at a stop sign, the vehicle died. It restarted but again would not shift. Eventually we were able to reach a nearby gas station. The problem continued intermittently as we tried to get home. Because we could not predict when it would happen again, we determined it was unsafe and had it towed. A Chrysler dealership in Georgia then documented numerous loss-of-communication codes and performed a PCM software update. The vehicle passed testing and was released, but the problem returned again after we returned to Ohio. The vehicle was ultimately towed to a Chrysler dealership in Ohio. The communication faults became active during diagnosis, and the dealer replaced both CAN-C and CAN-I splice-block connectors. The problem has not recurred since.

Filed Jun 7, 2026 · Electrical · WA

The entire electrical system is messed up. There will be times it works fine but all of a sudden while driving the odometer will switch between mph and kilometers, it'll change the screen, heated seats/steering wheel will turn on or off, it'll change the air system, the stop/start frequently goes out, we've had to replace both batteries and within a few months are having to replace both again. The transmission has a lot of issues as well and it's not safe while driving it'll "jump" or stall while shifting gears.

Filed May 15, 2026 · Steering · TX

The steering is tight/sticking when I back out of my driveway or drive slowly around turns. It does seem stiff on highway speeds as well. Also my auto stop start check light is on about 2 months after replacing both batteries and I did have the recall somewhat associated with this completed

Filed Apr 5, 2025 · Electrical, Fuel system · TX

Our pacifica has repeatedly stalled on freeways. The engine will just stop running and will not start for 15 minutes to several hours. If it does start, it often will sputter and stall again if you try to put it in ear or press the accelerator. After some time, the problem will resolve itself and the vehicle will drive normally. This problem is infrequent which is what makes it so vexing. Each incident was more than 6 months apart so you never know when it will just stall out. Because our van was converted to a rear entry wheelchair van by Braunability we've had the conversion components/connections thoroughly inspected by the conversion company dealer. I can see online that this is a known issue with multiple vehicles equipped with the Pentastar V6 engine with stop-start and that there have been recalls but many people on the forum, the recall work didn't resolve the issue. We've had the vehicle to Chrysler dealers several times (four or five) to address the issue without permanent resolution. We've replaced the primary and secondary batteries several times. We've recently installed an aftermarket stop-start eliminator recently in the hope that it will resolve the problem. Additionally, because our Pacifica was converted for our disabled child, we will probably need to sell the vehicle at a significant loss because we can't risk having the vehicle stall on the interstate highway or freeway as we have no way to remove him from it safely. This issue seems so widespread that Chrysler/Stellantis should have continued responsibility to resolve it permanently.

Filed Nov 5, 2024 · Electrical · MD

While driving, vehicle will display "stop safely vehicle will stop soon" and illuminate the battery and auto stop/start icons. This had happened previously and I was advised to have the auxillary battery replaced. After, the issue did not occur for a month or so but happened again. Had been intermittent but the car never shut off as I have read has happened to others. The additional issue I have is several times when I turned the vehicle off after the warning appeared, the vehicle would not start. I have an appointment with the dealership tomorrow to see what they can uncover. I have seen the recalls about this primarily about the EV models (which mine is not) but still want this noted. I have read it has varied from a wiring connector and needing a new transmission. There are currently no active recalls for my specific vehicle. Very scary stuff with a vehicle full of kids at times.

Filed Oct 31, 2024 · FL

We have had the Auxiliary battery replaced 3 times so far and the light for just came on again, the 4th time. Here are the dates and receipts for the replacements. Clearly there’s a flaw somewhere And Chrysler is not addressing is with all the affected vehicles. I’ve seen a recall on them but apparently my van is not part of it … even though they replaced that battery 3 times so far on average every 1 year 3 months. “Chrysler has announced that 198731 vehicles have been affected by a Battery recall. Chrysler (FCA US LLC) is recalling certain 2017-2019 Pacifica vehicles equipped with engine stop/start systems. A loose battery ground connection may result in an intermittent loss of power steering assist and/or a stall.” 7/24/23 Atlantic Dodge Ram - replaced Auxiliary battery under warranty (3rd time) and regular battery (see receipt below) Case #[XXX] 7/17/23 7/21/22 Atlantic Dodge Dealer Battery replaced 3/3/21 Purchased new battery at Garber Dealer & Atlantic Dodge dealer replaced regular battery and installed auxiliary battery I bought from Garber (see attached receipt) Please help I have a child that requires frequent doctor/hospital visits who almost died and we can’t be dealing with this issue over and over again. Sincerely, [XXX] & [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 11, 2024 · Engine · MA

I have a 2019 Chrysler Pacifica that has had several issues since I purchased it. The Start Stop System warning lamp comes on and off, and my check engine light is on. The van is barely driveable, it shudders, stalls, and is a major safety concern for my family. I use this van to transport my 3 young children around, and I never know when it is going to stall. It has completely lost power on the highway, resulting in a near catastrophic accident. I have reached out to Chrysler directly, as well as the dealer. There is indeed many recalls on this year and model car, but I am told my VIN number is not included. Chrysler, and the dealership, Imperial Chrysler in Mendon Ma, refuse to address the issue because my VIN is not included, but yet my car is experiencing the same exact symptoms and issues that have already been recalled. Chrysler has announced a recall on approximately 198,000 model-year 2017-19 Pacifica minivans equipped with stop-start due to battery issues. A loose battery ground connection may result in an intermittent loss of power steering assist or a stall, increasing the risk of a crash. When I reached out directly to Chrysler, I was directed to a call center where the woman was extremely rude and short with me. She continuously repeated that my VIN is not affected and would not offer any further assistance. In the mean while, this car is unsafe.

Filed Mar 29, 2024 · Electrical, Engine · TX

Have replace both batteries every year since purchased, the engine start stop acts up alot of the time when you pull up to a red light the engine will turn off and then turn on automatically (shuts the electrical system completely down then it will come back on) the batteries like over heat and swell up will this cause a fire

Filed Mar 2, 2024 · Driver assistance, Electrical · WA

The dashboard screen automatically shuts down and restart every 3 minutes. Stop/start light stays on.

Filed Dec 29, 2023 · CA · crash

Vehicle parked faced in in a tight fitting space in a hotel underground parking area. When leaving the knob was in the park position, push button start, vehicle started in the park position, looked behind and the people across from me had just loaded their van. They were now on the side of their van. It was now clear. I then placed the transmission from park to reverse still with the foot on the brake. I then released the brake . The vehicle suddenly and abruptly went in reverse without accelerating but when applying the brake the vehicle would not stop and continued going backwards even though I was firmly now pressing and pumping on the brake pedal to no avail. I yelled at my wife, "it won't stop, it won't stop" It backed up not stopping for approximately 25 feet and struck two vehicles finally coming to rest, The damage to all three vehicles including mine was minor. I reported the accident on private property to my insurance company. I know for a fact that my foot did not push down on the accelerator pedal nor was part of my foot on both the brake and accelerator pedal. which is almost impossible to do. The stop start system had broken three times since purchasing the van. This was done again 2 weeks before this accident. The vehicle is available for inspection. Quite apparent ithis is a safety risk. This occurred 1 day ago and has not been inspected. Accident on private property in Calif. No accident report was taken. No warning lamps, messages etc occurred. I keep the van in good repair. No warnings light at all other than the stop start feature which was dealt with by the Chrysler dealership. They, in my opinion have not been helpful to me. The rep I talked with at the dealership re the stop start problem was not aware that the alternator is 14 volts and the battery 12 volts. How basic.

Filed Aug 1, 2023 · NY

The auto start stop service light keeps going on. It drains the battery. The car now puts itself into park while at a red light or stop sign. In the last year I've had 2 batteries replaced and since 2019 the car has been in the shop 5 or 6 times, still they cannot fix the issue.