2019 Chrysler Pacifica transmission problems

Filed Sep 28, 2026 · Electrical, Transmission · FL

We are on a 5th! Auxiliary battery since purchasing the vehicle new in 2019. It fails every 1-2 years and it causes the main battery to drain as a result of it which means replacing both batteries on average every 18 months.

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 Sep 15, 2026 · Transmission · MN

The transmission has a very abrupt slamming or violent jerk around 45 mph. This has been since we bought the vehicle. Even with consistent routine maintenance this slamming has gotten worse. I believe this to be a manufacturer defect in the transmission that will cause premature failure. We have reported this to every dealer service center and private mechanic shop we have visited and were told that either they couldn't work on it or that it would require thousands of dollars to tear apart and inspect and even then we would more than likely need to foot the bill even if it was a defect and then try to get reimbursement from Chrysler/Stellantis. This transmission defect along with the coolant leaking into the engine issue that was submitted a year or more ago that has gone unanswered is making me lose faith in the manufacturer and the government agency set to protect consumers and investigate these issues.

Filed Sep 5, 2026 · Electrical, Engine · WV

On 7/16/26 vehicle would not start; high-pitched noise heard near engine during no-start diagnosis. Towed to Goldy Chrysler Dodge Jeep Ram, Huntington WV. Per dealer invoice #27136: blown 500-amp main battery fuse found; after jumping past fuse, white smoke from exhaust and no coolant in system, diagnosed as blown head gasket. Repair: both-side head gasket replacement plus fuse assembly. Vehicle in shop 7+ weeks, returned 9/4/26 with new unresolved issue: strong smell of burned electronics and antifreeze in cabin. All failed components available for inspection upon request. Safety risk: head gasket failure/coolant intrusion caused engine hydrolock, a sudden uncommanded loss of engine power that can occur without warning, including while driving in traffic. Burned-electronics smell raises electrical/fire risk; antifreeze odor raises cabin fume exposure and window-fogging visibility concerns. Confirmed by dealer: Yes. Goldy diagnosed and documented the fuse failure, coolant loss, and head gasket failure in writing, and performed the repair. Manufacturer/police/insurance inspection: Not by police or insurance. Spoke by phone with a Chrysler HQ rep 5 times (8/13-9/1/26) who was informed; no confirmed independent physical inspection by manufacturer beyond dealer's own diagnosis. Warning signs: P0304 misfire on cylinder 3 appeared first, progressing to complete no-start with high-pitched noise, prompting the tow-in and hydrolock diagnosis.

Filed Aug 21, 2026 · Engine, Transmission · MA

My 2019 Chrysler Pacifica Touring L Plus is experiencing coolant leaking into a cylinder, diagnosed by. This has rendered the vehicle undrivable. The Pentastar 3.6L V6 engine used in this vehicle has a well-documented pattern of coolant intrusion into cylinders due to head gasket failure across the 2017–2019 Chrysler Pacifica model years, based on extensive owner complaints already on file with the federal safety agency and reported by consumer advocacy organizations. Despite this known pattern, no recall currently exists covering this specific defect for 2019 model year vehicles. This is a safety concern because coolant intrusion into a cylinder can cause sudden misfires, rough running, loss of power, and potential stalling while driving — creating a hazard in traffic, particularly at highway speeds or during turns/merges. I contacted Chrysler Case Management regarding this issue. The manufacturer has attempted to attribute responsibility to the dealership rather than acknowledging this as a manufacturer defect in the engine design/manufacturing, despite the well-documented pattern across multiple model years of the same engine. I have also not been provided a rental vehicle despite my vehicle being undrivable.

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 Jun 21, 2026 · Steering, Transmission · AR

Powertrain: harsh, jerky shifting, violent, lurching gear changes, pause before engaging and high revving and lack of acceleration, mostly noticed at 50-60mph Steering PE25009 - catching or sticking when making minor or gradual turns in either direction when the steering wheel is positioned near the 11 o'clock or 1 o'clock positions. It requires extra force to break free and jerks the steering

Filed Mar 30, 2026 · Transmission · 41,000 miles · NY

The contact owns a 2019 Chrysler Pacifica. The contact stated that while the vehicle was stopped at a red light, the vehicle made an abnormal sound and the transmission unexpectedly shifted from drive(D) to park(P) and the vehicle shut off. No warning light was illuminated. The vehicle was able to be restarted. The contact stated that the failure occurred once a week. The contact also stated that the battery had previously been replaced. The vehicle was taken to an independent mechanic, who determined that no cause of failure was found. The vehicle was not repaired. The manufacturer was made aware of the failure and confirmed that there was no recall associated with the VIN. The failure mileage was approximately 41,000.

Filed Mar 16, 2026 · Engine, Steering · ID

While driving the car is unable to switch gears from D to L gear and has no power to accerlerate up hill.