2019 Chrysler Pacifica: check engine light

Filed Oct 19, 2026 · Engine · IA

At 105,000 miles the check engine light came on, at which point the vehicle experienced rough starts and a rough idle. Vehicle also began emitting white/gray smoke from the exhaust upon starting. Upon diagnosis it was determined that coolant was leaking into #4 cylinder requiring head gasket replacement. Total repair came to $4,287.07. This is a known issue commonly being experienced by other Pacifica owners. This major mechanical issue is a safety issue and could easily have stranded my family on the road. We were fortunate to have been home and located near a known and trusted mechanic when the issue presented.

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 Aug 20, 2026 · Transmission · OH

The car rapidly came to a stop as I was starting to press the brake lightly. The check engine light came on, the car made a grinding noise, and the screen said it was turning off cruise control when it had not been engaged.

Filed Aug 11, 2026 · Electrical, Engine · WA

As I pulled up to stop, in electric mode, at a stop light, the display screen pulled up a message to pull over safely because the engine would stop soon, within about 10 seconds the screen showed the engine stopped. I was still at the light. I tried restarting the vehicle, moving the shifter from drive to park and back, pressing the park button several times with no success. With cars honking behind me, I got out of the car, told them my car had died and asked them to drive around me. I got back in the car, repeated the actions a few times and the car started in electric mode. I drove home (about 5 miles) without incident. Check engine light was on. I pulled 2 codes U0412 and U029a. I have had the U0412 code a few times before with only the check engine light coming on. It would go away in a day or two (no check engine light and no code). U029a is new.

Filed Aug 8, 2026 · Electrical · NC

Dash warning came on saying safely slown and pull over, car will shut off soon. Didn't have a safe place to pull over and eventually the whole car shut down and all electronics went out no steering, no gear shifting, No way to put in park. I was lucky to be on a somewhat sife road to pull over to side do safely get the car off the road so it would not get rear ended from other cars. The warning to shut down was like 1-2 minutes. Tried turning car back on but no power anywhere. Was able to jump car with portable battery power supply, but when trying to shift the into drive to move to a safe spot, even if just into nurtal and push, all the gears (R, N, D, L) were blinking and when you turned to any position it immediately went back to park. Wait waited 10 minutes, retried and was able to get into drive. There was now a check engine light on and a P! Light. Immediately drive to closest dealership (20 miles away) with no issues and they said there were like 120 codes and they couldn't assess them as their electrician was not working and there was no other dealer or shop around to do this. I drove back to my residence and there were no errors and the check engine light and P! Light went off. This pull over and stop warning has come on periodically over the past 2onths but the car never stopped. I was always able to pull over, stop the car and restart and the warnings went away and I would not have any issues for more than a week. All batteries (main and aux are both brand new).

Filed Aug 8, 2026 · Engine · VA

While driving, the vehicle began to sputter and the check engine light illuminated. A scan at a franchised dealership showed a stored code for a cylinder 4 misfire. Further diagnosis found coolant intrusion into cylinder 4, indicating internal failure of the left cylinder head and/or head gasket, allowing coolant into the combustion chamber. Upon removing the left valve cover and camshafts, the technician found a broken head gasket and a warped left cylinder head. The dealership replaced the left cylinder head, head gasket, cylinder head cover gasket, and oxygen sensor, refilled coolant, and replaced the PCV valve as a maintenance item. After repair, the vehicle was test driven and no further misfire was detected. This failure occurred at approximately 72,000 miles, low mileage for a major internal engine component, shortly after the factory powertrain warranty expired, leaving the owner responsible for the full repair cost. A misfire caused by coolant entering a cylinder can cause sudden, unexpected loss of engine power and rough running while driving, a safety concern in traffic, on highways, or when merging and passing, since reduced power can make it hard to maintain speed or accelerate out of a hazardous situation. Continued driving with undiagnosed coolant intrusion can also cause secondary engine damage, including hydrolock. The failed cylinder head and gasket were not retained by the owner; the dealership performed the repair as part of the invoiced order. The manufacturer has not independently inspected the vehicle beyond the dealership's diagnosis, photographs, and repair documentation, available on request. This appears to be a recurring issue on this engine platform, as similar cylinder head/gasket coolant intrusion failures, with matching misfire codes, have been reported by other owners of similar model-year minivans with the same engine, typically presenting in the 60,000-85,000 mile range, shortly after the factory powertrain warranty expires.

Filed Jul 14, 2026 · Airbags, Driver assistance · MI

For a few weeks prior our windshield wipers would start and were unable to be switched off. Then would just randomly stop. Then we got completely stopped on a major road during rush-hour with my whole family in the car. The car moved itself to park at a stop light. When we were stopped, everything in the car was going haywire. FCW unavail, ABS unavail, check engine light, wipers going, couldn't use turn signals or hazard lights. I turned the car on/off multiple times to get it to work. We were stuck in the middle of a busy road above a highway with cars exiting during rush hour. Cars moving fast around me with my whole family in the car. Could have caused major accident. Chrysler dealer could not help right away. Took to own mechanic. Recreated issue, replaced Aux Battery (which should NOT have all safety features tied to it), and re-flashed 3 modules that were ruined from this. Thought this was fixed but next time out, same things started happening, but now says to service airbags as well. I will not have my family in the car with an airbag malfunction. Now saying 2-4 thousand to fix, more modules fried and ONLY the beginning. Car has only been inspected by dealer to pull codes, then mechanic. Like I said the windshield wipers were going and couldn't be controlled but no other warning lights. This did not indicate a battery failure and EVERY safety feature to be turned off. This is not designed/wired correctly and I need Chrysler to take action on this situation. My whole family could have been seriously injured and any other Chrysler with this design needs to be fixed or taken off the road.

Filed Jul 10, 2026 · Driver assistance, Engine · GA

The vehicle intermittently displays a "Stop Safely – Vehicle Will Shut Off Soon" warning message accompanied by a turtle icon while driving, most often at highway speeds above approximately 50 mph. There is no consistent pattern or condition that triggers the warning. When the warning appears, I must immediately attempt to pull off the roadway because the vehicle indicates it will shut down. This creates a significant safety hazard, especially on interstate highways or roads without a safe shoulder. If the vehicle is turned off and restarted, the warning message disappears, but the check engine light remains illuminated. After the next ignition cycle, the check engine light also disappears, leaving no visible indication of the problem. The issue began occurring approximately once per year but has become progressively more frequent. It now occurs almost daily. During a recent 300-mile trip, the warning appeared four separate times. It also commonly occurs twice during a 60-mile drive. The increasing frequency has made the vehicle unreliable and unsafe to operate on highways. The vehicle has been taken to an authorized Chrysler dealership. However, the dealer stated they cannot diagnose or repair the problem unless the warning is actively displayed when the vehicle arrives. Because the warning clears after restarting the vehicle, the dealer has been unable or unwilling to identify the cause or perform a repair. I also contacted Chrysler customer service. I was informed that because there is no recall related to this issue, they could only refer me back to the dealership for diagnosis under any applicable warranty coverage. This defect poses a serious safety risk because the vehicle may lose propulsion while traveling at highway speeds, requiring an emergency maneuver to reach the shoulder while surrounded by fast-moving traffic. I am concerned that this could result in a rear-end collision or other serious crash if the warning occurs where there is no safe place

Filed Oct 24, 2025 · Brakes, Driver assistance · CA

During normal driving from office to home car suddenly started stuttering and I was apply break but speeded up and showed engine light on, I was about to hit front car due to additional speed. During that time I saw few quick messages on the dashboard, the one that I can remember was related with ACC. That's the dangerous situation. I looked d from OBD and found that code was U0412 and reported that code to Huntington Beach Chrysler service station. Please keep an eye out for some similarities between others reports.

Filed Aug 2, 2025 · Electrical · WI

After safety recall 72B was performed on my 2019 Chrysler Pacifica Hybrid on 7/17/25, the vehicle's check engine light illuminated and it began experiencing charging failures. I've never experienced these issues prior to the recall being performed and the vehicle returned to me. The component that has failed is the high-voltage (HV) battery pack and its control system. Diagnostic scans performed by a Chrysler dealer on 7/29/25 confirmed trouble codes, 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. 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. Chrysler is not taking this failed recall seriously and are forcing owners to pay for their own rental vehicles while they investigate the "undriveable" vans post-recall completion.

Filed Apr 7, 2025 · Transmission · 204,000 miles · VA

The contact owns a 2019 Chrysler Pacifica. The contact stated that while driving at an undisclosed speed and attempting to accelerate, the RPM's increased rapidly, but the vehicle failed to accelerate as intended. The contact was able to pull over to the shoulder of the roadway, where the failure persisted. The check engine warning light was illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the transmission. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 204,000.

Filed Feb 28, 2025 · Engine, Transmission · 20,000 miles · MI

The contact owns a 2019 Chrysler Pacifica. The contact stated while driving at various speeds, the transmission skipped gears. Additionally, the vehicle was experiencing erratic transmission shifts and unintended deceleration. The check engine warning light was illuminated. Additionally, the contact stated that upon attempting to shift to drive(D), the gear shifter failed to respond and remained stuck in park(P). The contact researched the failure online and found information on how to override the gear shifter failure. The contact pressed the Push to Start button twice, without depressing the brake pedal, depressed the accelerator for ten seconds, and pressed the Push to Start button to turn off the vehicle. The contact stated that upon restarting the vehicle minutes later, the vehicle responded as needed and the gear shifter became operable. The contact stated that the failure had been recurring intermittently. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The contact related the failure to the federal safety agency Action Number: RQ24004 (Electrical System). The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 20,000.