2018 Chrysler Pacifica Powertrain & Transmission Problems

The van has just approx 55000 miles. While driving on highway, it suddenly lost power and from 60mph it came down to 20 miles in a matter of few seconds after few violent jerks. I was lucky that no vehicle was behind me. After that I pulled a side and then again started. It kept jerking and loosing power. Very carefully I got it to a mechanic. They are checking but they say looks like transmission issues. Engine light also came on. This happened few months ago however it was not this bad and my mechanic looked and he could not find anything. That problem went away after that incident. Kindly advise what to do in this situation. Chrysler Pacifica 2018 This van has lots of problems in other crucial area also like air fender switch, oil hose and cover that went bad as they are made of plastic. Then the trans mounts broke. It costed me dearly. Please Advice what to do? Best regards [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While I was driving the car started beeping and all dashboard lights started flickering. Transmission started stuttering and engine rpm fluctuating wildly. Fortunately I was in my neighborhood and was only going about 15 mph and was able to pull to a stop. The issue is with a faulty star bus connection near the glove box. After watching a you tube on the same issue, I learned to hit the area near the glove box to reset the star bus connection. This has happened before but usually on startup. Dealer not able to repair after $1600 charge. This is the first time it happened while in motion. Again. Seems to be a common enough issue that there are several you tube videos with thousands of views.

While driving vehicle suddenly, and randomly, has a loss of engine response whole pressing the accelerator. Engine randomly shuts off while parked or at a traffic light, and can be difficult to restart after causing a traffic hazard.

Engine experienced premature valvetrain failure (camshaft/lifter issue) at approximately 145,000. Vehicle developed ticking noise, misfire, and loss of power. Diagnosis confirmed camshaft/lifter damage requiring major repair. This appears to be a known issue with the 3.6L Pentastar engine and is documented in Chrysler STAR case S2309000013. Failure creates potential safety concern due to loss of power while driving. Vehicle is out of warranty, and manufacturer has not provided consistent support for repair despite known pattern failures.

Chrysler Pacifica 2018 about 56000 miles. Transmission seal is leaking that’s manufacturing defect. Chrysler is denying the warranty as this vehicle in not in recall for repair. Please advice Thanks [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

As I was leaving the gas station the Check engine light flashed on and off then the car was like turning on and off fast and a loud clunk sound and the Fuel pump module exploded gas sprayed all over the gas station. Huge fire hazard and the car began to smoke Vehicle experienced a sudden catastrophic fuel system failure involving fire risk and loss of propulsion. The incident occurred without warning and created a serious safety hazard to occupants and surrounding traffic. This vehicle is a Chrysler Pacifica Hybrid. Similar failures involving fuel system and hybrid control logic have been widely reported. The manufacturer was contacted but declined to properly document the safety incident. This failure is not consistent with normal wear and tear and represents a potential safety defect. Key details to include when submitting online: - Sudden loss of propulsion - Fire risk / fuel involvement - Hybrid system interaction - Manufacturer declined to document incident

The contact owned a 2018 Chrysler Pacifica. The contact stated that while in reverse(R) and reversing into a parking spot, it was difficult to accelerate over a patch of ice. The contact depressed the accelerator pedal, and the vehicle accelerated quickly and failed to stop while depressing the brake pedal and the vehicle drove through a fence and crashed into a brick building and stopped. The contact stated that prior to the failure, the U-Connect phone feature disconnected independently. The failure had never occurred before. The contact stated that the U-Connect failure might have been linked to the unintended acceleration failure. No injuries were sustained. A Police report was not filed. The fence and a side of the brick building were damaged during the crash. The vehicle was initially towed to the residence before being towed to a Collision Center, where the vehicle was deemed a total loss by the Insurance Provider. The vehicle was destroyed. The manufacturer was not notified of the failure. The failure mileage was approximately 159,000.

Vehicle went into limp mode Twice. 1st time on 10/28/24, Technician found fault for Hybrid Battery pack, Chrysler technical service bulletin said to clear fault then drive, if fault did not come back release the vehicle Work order stated, Bring vehicle back if it happens again and replace hybrid battery. 2nd time, 2/06/2026 vehicle went into limp mode again while driving. My safety and the safety of others was put at risk as I was driving on a highway at 65 MPH and suddenly without warning and no braking involved went down to 20 MPH. A very unsafe maneuver as the following vehicles had no indication I was braking or Slowing down. The dealer has confirmed the limp mode incident but so far has been unable reproduce it. The vehicle and components have only been inspected by the dealer. The warning lamps and messages only came on as the event unfolded. A sudden and uncontrollable loss of power. The dealer states that they believe the hybrid battery pack is failing, but Chrysler, Stellantis will not replace the hybrid battery pack unless the dealer can reproduce the incident. Extremely dangerous thing to try and recreate.

On October 31, 2020 (before our purchase of the van) the previous owner had to take the van to Chrysler for hesitation in the transmission shifting. On June 14, 2021 (only two weeks after purchase), we had to drop it off for intermittent shifting issues with what seemed like skipped gears. No engine light came on, and the van was returned stating an inability to reproduce the issue. On February 7, 2022 we brought the van to Chrysler after taking it in a few times to Carmax to resolve the the disabled "Start/ Stop" System. The light would intermittently come on indicating the system was unavailable, and shifting would be erratic. An inspection and recall work for the PCM was performed. In June of 2023, the UConnect System stopped working intermittently. The gears were still shifting roughly with the shift knob becoming increasingly more difficult to turn. An independent shop found no solution with an unknown timeframe on the delivery of a new transmission. In June of 2023 while driving, the van shut off completely while in motion. After a few minutes, it started up again and drove as if nothing was wrong. June 24, 2023, we took the van to Chrysler with the same issues. At the time there was still a back order of transmissions for the van. Upon contacting Chrysler, we found out that there was a recall effective on the new transmission and the company rush ordered the part to the shop. As well, the Uconnect system was also addressed. The issue was fixed. After a few years of reliable service, the van functioned normally with rough shifting and start/stop system failures still an issue. In January of 2024, the van would not start at first try. Often my wife was able to get it started after sitting for awhile. In other cases, changing the key fob helped. Changing the AUX battery repaired the issue temporarily. Now it won't start at all. The starter was misdiagnosed by an independent shop with Chrysler finding a failed transmission once again.

At 48,445 miles, the vehicle's engine experienced a catastrophic internal failure involving Cylinders 4 and 6. The failure resulted in a sudden loss of motive power and engine misfires while the vehicle was in operation, creating a severe safety hazard and risk of stalling in active traffic. A certified mechanic performed a cylinder leak-down and compression test, confirming internal engine failure consistent with the known 3.6L Pentastar cylinder head/gasket manufacturing defects. The vehicle is now unsafe to operate. This failure occurred well before the expected useful life of the powertrain and appears consistent with the defects alleged in the class action Maugain et al. v. FCA US LLC. No warning lights illuminated prior to the immediate failure.

Head Gasket Blew at 102,000 Miles which caused windows to fog up on freeway.

Vehicle was put into reverse and did not stop, it hit a pole. Then the driver tried to put in drive to get it off of the pole and it accelerated quickly and the driver could not stop the vehicle. There was little time to react as it hit the side of a building and airbags deployed. Driver stated that the car accelerated on it's own once it was put into gear.

This letter concerns repeated and life-threatening failures involving the transmission system in my 2018 Chrysler Pacifica Hybrid (CA License Plate: 8CEF638, VIN: 2C4RC1N79JR172609), covered under your lifetime transmission warranty for this model. Following two confirmed incidents resulting in unexpected engine shutdowns and critical transmission faults, I am formally demanding a full replacement of the faulty transmission assembly as required under California lemon laws and the issued lifetime warranty extension. Summary of Incidents & Reference to NHTSA Action NHTSA Action Number: RQ24004 pertains specifically to transmission wiring defects, resulting in short circuits and loss of motive power. The recall remedy under Campaign Number 23V-010 has proven inadequate for many 2017–2023 Chrysler Pacifica Plug-In Hybrid Electric Vehicles. NHTSA’s current recall query documents continued transmission failures after owner reports and software updates. Case Number: XXX was opened with Chrysler in response to my experiences, and reflects ongoing safety risks with this transmission. Incident 1 Date/Location: Sunday, September 1, 2025, 5:00 PM — Southbound I-5 near Downey, CA. Description: Sudden vehicle shutoff at highway speeds. Immediate hazard required emergency calls and intervention. Exhibit 1: Call log to Chrysler Downey at 5:07 PM included. Incident 2 Date/Location: Wednesday, October 29, 2025, 2:20 PM — Northbound I-5, Via De Lavalle exit off-ramp. Description: Dashboard warning ("Stop Safely, Vehicle Will Shut Off Soon") and loss of motive power. Towing, police, and emergency assistance required. Exhibit 2: Image of dashboard warning. Exhibit 3: Phone log of AAA towing, Delmar Police, and Sheriff calls, confirming duration and response. Warranty Information As a California owner of a 2018 Chrysler Pacifica Hybrid, your published material and user communications confirm a lifetime warranty for the transmission on this specific model, following NHSTA RQ24004

While driving, the Pacifica lost all engine power in the middle of an intersection while traveling at 34 mph. All the dash lights blinked and sounded alerts. The car then showed U1267 and U0416 diagnostic codes.

I was driving and the van suddenly lost all propulsion. Brakes and steering and dash lights functioned, but there was a red turtle icon and error message about a system failure. The accelerator pedal did nothing at all. I was able to coast off the side of the road to a place to pull over, but that could have been a terrible accident if I lost power like that on I-95 or any other major highway. My husband came and we switch cars (kids, car seats, etc) and he was able to get the van to start after half an hour. It had check engine lights on for things, but the dealer said to bring it in because it was drivable again. Despite brining it in as told, with check engine lights on that they saw, they said they could not reproduce it and couldn't find codes for the check engine light (even though I pulled them from my own OBD2 diagnostic plug tool and took photos of the codes) and eventually said I have to take the car back, despite no cause or resolution. These cars have known faulty battery issues and a large number have been replaced already, but Chrysler isn't authorizing dealers to do that unless they can reliably reproduce the failure. Very frustrating to see Chrysler not go the route of other manufacturers who sourced their batteries from the same plant and ended up proactively replacing them for consumers. While Chrysler's many recalls for the hybrid battery system software have probably made it detect faults earlier to try to prevent fires, they are still known to happen, but now in addition to a fire risk, we also have a car that has a much higher chance of just losing power while driving due to over sensitive battery monitoring, or a plain old faulty battery that just isn't faulty 'enough' for Chrysler to authorize a replacement. So frustrating and dangerous.

My vehicle went in for recall 73B at the end of August 2025. Every since the recall it has been back to the dealer for multiple check engine lights, service hybrid system, abs system, battery heater fail, blind spot warning temporary unavailable, service shifter(would not go into gear), parking brake, stability control light, partial loss of power steering while driving, service electronic throttle control, and service airbag messages. The van has been to the dealership 4 times for these messages. They have replaced components, tried to find loose wires and connectors, replaced the 12V battery, and other fixes. The van will drive normally for a few weeks, and then they come back. On the latest visit (4th since 73B recall) it's been at the dealership for 31 days and counting. The dealership is waiting on Chrysler to figure out a fix for the van. The vehicle has over 50 stored messages. This recall was supposed to monitor the hybrid battery for early indications for a fire, but according to the original recall all batteries are assumed to have the manufacturing defect that leads to spontaneous fires. This van is unsafe, and we never know when it will work correctly. The van operated normally before the recall software was installed.

After safety recall 73B was performed on my 2018 Chrysler Pacifica Hybrid on 08/25/2025, the vehicle's check engine light illuminated on 09/09/2025. I was inundated with multiple failure lights including; check engine, service electronic throttle control, service hybrid electric vehicle system, blind spot alert, and I felt like I lost power steering. I was unsure if the van was safe to drive, but was able to get it to the dealership. They were able to pull multiple codes. Including the one for the check engine light. They decided that the problem was related to the ABS control module. They replaced it and the van has been fine so far. It seems these error codes are widespread after performing recall 73B. Many other customers are complaining of the same thing. I believe these errors are from the testing to the High Voltage battery, and their 'software fix'. It's not safe to lose your power steering while driving. It's not safe to have multiple error codes continuously going off while operating the car. It's not safe to have a family car that we have been told twice to not park in the garage, charge, or park near a structure. This is their second attempt at 73B, and overall the second fire recall. My van and high voltage battery are definitely available for inspection.

When beginning to move from a stop, the transmission occasionally does not engage for a few seconds and allows the vehicle to drift unexpectedly before it slips in gear and moves. Also, occasionally when shifting gears once moving, the transmission “pops” into gear, which feels as if I have been rear-ended. This has been happening for a few years and has been at the dealership 5 or so times with no resolution.

The transmission KICKS into 2nd gear at times and it feels like I've been rear ended. Also sometimes when that happens the car will accelerate on it's own, I am surprised that I haven't hit anything or anybody when that happens. And other times it will cut out altogether and loses power. This is definitely a safety issue. I can't understand why Chrysler will not do anything about this issue. It can be very dangerous. This has been going on for the 4 years that I have had the van.

While attempting to accelerate experiencing a loss of power, an/or hard shifting. Pulling out from parking lot or street from a stop, there is a delay in getting the car to move. Moves slowly but then gradually builds up. Also at times there appears to be shifting issue, when attempting to accelerate the vehicle will do a hard jolt forward. In reviewing online this jolting is a common theme with the pacific but yet there has been no further action taken by Chrysler. Told my two different mechanics that Pacifica's are known to have issues with their transmissions and that I should not expect any type of recall for this due to the potential cost.