2020 Chrysler Pacifica: check engine light

Filed Sep 8, 2026 · Electrical, Engine · MA

I experienced a sudden loss of power and steering while driving my vehicle. The screen advised me to pull over because the engine would shut off soon, but I already had lost steering and power. I turned the car off and was able to restart it and drive it 1 mile home, and the check engine light was on. I had it towed to the dealer. After 2 weeks of testing, the dealer reported, “When your vehicle was initially checked in, the following trouble codes were present: 5 BPCM FAULT CODES P1A21-00, P1D43-00, P1C01-00, P1A2A-00, and P1A29-00. We have completed Recall Y40.” The repair tech said they expected the engine to lose power again at some point and I would need to have it towed in again to be repaired then. The repairs made so far are only software updates, no hardware has been repaired because the dealer said the errors didn’t recur after they reset the system. I have elevated the issue with the dealer and am awaiting a response. I am concerned based on the error codes and technician information that my vehicle is still at risk of catching fire at any time or experiencing another catastrophic loss of power if the faulty hardware is not replaced.

Filed Aug 26, 2026 · Driver assistance, Electrical · CA

Vehicle has suffered from electrical issues since 2023 with effects to front windows causing window to reverse down when trying to roll up, radio malfunctions that is a known Chrysler issue that removes the ability to control rear entertainment center from front screen leaving the feature unusable with small children in the rear for long periods of time, rear cross traffic warning detection malfunctioning and not making audible alarms or warning with vehicles and pedestrians behind vehicle, loud noises when braking that according to Chrysler TA is potentially the ABS system wanting to engage but didn't, electrical shorts causing intermittent surging of interior lights - slower functioning of sliding doors - shorted out multiple window washer pump systems leading to replacement - lane departure system malfunctioning causing vehicle to drastically steer vehicle towards a curbed center island in which I as the driver had to manipulate the wheel to avoid crashing - passenger slider door at time malfunctions causing the door to repeatedly open and close on it's own and also open on its own while vehicle was underway in reverse - blind spot monitoring system malfunctioning at times to not warn of vehicles in blind spot - vehicle stalled twice with check engine light on but no recorded data in computer of the events ever occurring. All of these issues have been inspected under both factory warranty and extended Mopar warranty with service department stating they could not replicate the error and no further investigation or diagnosing was completed. After "repair attempts" were made the malfunctions reoccurred with another service appointment being needed and more electrical errors happening over time. Per service department there were no DTC or check engine lights for our malfunctions, however years later they finally admitted there had been DTC logs but were ignored and not diagnosed. We feel the safety of our family and public are at great safety risk from the failures.

Filed May 4, 2026 · Engine · MD

I have a 2020 Chrysler Pacifica. There was a recall last year and I brought it in to the dealership. At that time, I wasn't even sure what the recall was for. This year, about a month ago, I was driving (I take XXX to work everyday) and the display had a notice that said "Stop safely, the engine will turn off". I pulled over and turned the car off and turned it back on. The check engine light came back on but it drove fine. The check engine light eventually went off but the same thing happened again a few days later. I brought it into my mechanic who couldn't read the diagnostics. I brought it back into the dealership and they said I just needed a software upgrade so they did that. Unfortunately, the engine died again on the road. I shut the car off and turned it back on. I brought it back to the dealership and said the issue wasn't fixed. They haven't taken the issue seriously so I started searching and found this issue. It sounds like Chrysler is aware of the issue but I'm nervous even a new transmission won't fix the issue. In the meantime, I've had to rent a car as the dealership doesn't do loaners. This is a pretty big safety issue as now my car has shut down on the middle of the highway multiple times! [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 1, 2026 · Electrical, Fuel system · 113,000 miles · CA

The contact owns a 2020 Chrysler Pacifica. The contact stated that while driving approximately 45 MPH, the vehicle started losing motive power. The vehicle stalled with the check engine light and several other unknown warning lights illuminated. The vehicle was restarted; however, the check engine warning light remained illuminated. The vehicle was taken to a local dealer to be diagnosed, and it was determined that there was an electrical failure in the transmission. The vehicle was not repaired. The contact stated that prior to the failure, the vehicle was repaired under the federal safety agency Campaign Number: 23V010000 (Electrical System, Hybrid Propulsion System); and associated the failure with the recall. The manufacturer was informed of the failure and referred the contact to the federal safety agency Hotline to report the failure. The failure mileage was approximately 113,000.

Filed Mar 14, 2026 · Electrical, Engine · VA

The start/stop system fails while car is running. Power not delivered appropriately resulting in check engine light coming on and entire car shaking. Only 62k miles. Started at 58k.

Filed Mar 4, 2026 · Engine, Fuel system · NC

The hybrid propulsion system on my 2020 Chrysler Pacifica Plug-In Hybrid has repeatedly failed, resulting in sudden and complete loss of power while driving at highway speeds. The vehicle enters full limp mode, displays a red turtle warning light, and the motor cuts out entirely, creating a serious collision risk. The failure occurs without warning and has happened on multiple occasions. The root cause has been traced through escalating component failures: first the Power Inverter Module (PIM) was found to have an internal failure disabling regenerative braking and causing the motor to cut out; subsequently the battery charging module was found to be failing, causing the high-voltage battery to drain to 0% and stall the vehicle. Both components were replaced by an authorized Stellantis dealership under warranty. Despite replacement of the PIM, the charging module, and ultimately the transmission, the defect has not been resolved. The vehicle has been confirmed defective by the authorized dealer on each visit and has been subject to a STAR (engineering escalation) case with Stellantis. Warning symptoms include the red turtle warning light, check engine light, and sudden power loss. The vehicle has been out of service for cumulative warranty repairs exceeding 130 days, including a continuous period exceeding 90 days. The vehicle remains unrepaired and in dealer custody as of the date of this filing. The dealer has confirmed the defect on each visit and has conducted multiple rounds of diagnostic testing and component replacement, none of which have restored safe and reliable operation. The component failures are available for inspection upon request.

Filed Feb 23, 2026 · Engine · AZ

While driving in suburban traffic vehicle engine began running rough and lost most power with about 58000 mi on the vehicle. Received check engine light and vehicle entered 'limp mode' with Turtle Icon displayed on screen. Brought to dealer and it was diagnosed with a P0304 Cylinder #4 Misfire and leaking head gasket causing coolant contamination to engine oil. Dealer repaired the head gasket under warranty. About 2 months after the head gasket was repair at 60,098 miles while drive on the Interstate the engine began running rough. Check Engine Light came on and then Oil Pressure Light came on. We were able to exit the highway, had the vehicle towed to the same dealer where the head gasket was repaired under warranty. This time the engine was diagnosed with a failed #4 Cylinder connecting rod. Chrysler and Dealer refused to repair or replace the engine even though both leak and failure occurred on same cylinder.

Filed Jun 7, 2025 · Engine · PA

The head gasket failed. The check engine light came on and I took it to the dealer before the engine seized thankfully but it could have caused safety issues such as coolant leaks, engine breakdown potentially on the highway which could have caused an accident and risked people’s lives. If there was oil contamination, the engine could have locked up which def can cause an accident. Engine fire is even possible. The problem has been confirmed by an independent dealer. I know of many others who have experienced the same issue.

Filed May 24, 2025 · Electrical, Engine · TN

On [XXX] in Alabama at [XXX] on Saturday [XXX], going highway speed with cruise control on, the engine shut off unexpectedly. The driver put on the flashers, pulled over, and turned off the vehicle for 30 seconds. Then the vehicle was turned back on and was functioning normally. Approximately 10 minutes later the engine light is on. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 1, 2025 · Electrical, Engine · TN

The vehicle will hard shift randomly. The engine light comes on sometimes and the engine losses speed and power while driveing down the highway. I can sometimes cut the vehicle off and make it home safely other times it will not let me drive the vehicle at all. We have taken to dealer and they say they cant diagnose if light isnt on. Most of the time when the light is on I cant make it to the dealer because the vehicle will not drive. It has been confirmed by the scanner froma independent service center.

Filed Apr 8, 2025 · Engine, Suspension · 161,500 miles · IL

The contact owns a 2020 Chrysler Pacifica. The contact stated while driving 60 MPH, the vehicle failed to respond. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the shock absorbers, radiator, and brake discs needed to be replaced. The vehicle was repaired; however, the failure persisted. On another occasion, the vehicle seized to function as needed. The contact took the vehicle to the independent mechanic and the vehicle was diagnosed with timing chain failure. The local dealer was contacted; however, the vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 161,500.

Filed Dec 10, 2024 · Engine, Fuel system · FL

The car was running great, but then I had the check engine light on. When I checked the vehicle with an OBDD2, I got P0303 (misfired cylinder 3). A mechanic expert and I checked the vehicle for a possible blown head gasket, low compression, and defective spark plugs, and all was good. The car is a 2020 Chrysler pacifica and should have problems of this kind