2018 Chrysler Pacifica fuel system problems

Filed Oct 20, 2026 · Electrical, Fuel system · CA

My van has been reliable for 5 years until recall 73B was performed. Ever since it's install I have had 7 repair attempts and 250+ days out of service. Each repair attempt is preceesed by check engine lights, service hybrid system, check electronic throttle control, red wrench, blind spot temporarily unavailable, (occasionally) service airbag, service shifter, and stability control lights. Chrysler has been unable to fix this issue. They have replaced the abs module, 12v battery, can bus's, wiring, battery coolant heater, eflite motors and reducers, 400v battery, and the under hood wiring harness. Engineering has been involved, star cases opened, and technicians flown in to address these issues. The DTC code scans reveal many communication codes, both active and permanent. The last scan had 23 active codes. No one can tell me if this van is safe to drive, I don't think it is. I have had no drive events, and lost power steering momentarily at highway speeds. The latest incident had the messages start appearing at 45 mph. This can is unfit to be on the road, and stellantis does not seem to be able to fix it

Filed Aug 1, 2026 · Electrical, Fuel system · TX

Yes, the problem has been reproduced by the technician. When you put the car in reverse, it would start to go in reverse and as soon as you let off the throttle or the gas pedal, it would go forward at 15 to 20 mile an hour as you slammed your other foot on the break that’s without you even touching the gas pedal. I was sitting in a stoplight and all of a sudden the car wanted to go 55 mile an hour. And I had to slam on the brakes to keep from hitting other cars. Right immediately after that when I was trying to find a place to pull off the highway the car by itself decided to slam on the brakes or at least that’s the feeling that it gave because while I was trying to go to the car come to an abrupt stop right in the middle of the highway. Through all these different scenarios the thing that happened happened while I was not touching the gas pedal. This is why I feel like it’s a major safety concern not only for me and my family but other families that are out there driving also for everyone else that has bought this car and has the potential for the same thing to happen to them and they may or may not know what to do in that situation . We had the vehicle towed to Shottenkirk Chrysler dealership, where between Chrysler and the dealership we have not been able to come to a resolution on this vehicle!

Filed May 20, 2026 · Electrical, Fuel system · WA

The manufacturer's mandatory 73B Safety Recall update (Vehicle Fires) creates a critical software-induced communication failure on the central vehicle network. Following the 73B flash, the vehicle developed an Active SGW U0001-00 CAN C Bus network fault, which permanently blocks data transmission and triggers an HCP U0412 hybrid battery fault. This network crash disables the hybrid propulsion systems, creating an unpredictable and hazardous driving condition. The manufacturer (Stellantis) and its authorized dealer (Seattle Jeep) are refusing to remedy this safety recall side effect under the vehicle's Hybrid Powertrain Warranty, instead forcing consumers to pay out-of-pocket diagnostic fees ($284.67) and multi-module software update fees ($812.50) to correct a defect injected by the recall software itself. This directly compromises vehicle safety and violates federal recall remedy mandates.

Filed May 11, 2026 · Driver assistance, Electrical · CA

Chrysler performed the 73B recall and n my van in August of 2025. Ever since performing this recall the van has a continuous stream of check engine lights and error codes. The van has been at the dealership at least 6 times for well over 100 days. The check engine lights and error codes always return. The hybrid battery recently had a failure code, and was replaced. I didn't even make it home before I got a check engine light and error codes. The dealership cleared the check engine light and sent me on my way. The codes returned and the van is back at the dealership. The codes I have been getting are : Service Hybrid System, Parking Brake Temporarily Unavailable, Service Electronic Throttle Control, Service Shifter( I was not able to drive as it wouldn't go into gear), Service Electronic Stability Control, Blind Spot Alert, and Service Airbag System. On the longest service visit (over 80 days), Chrysler ended up just telling the dealership to erase the stored codes and return the van to me. They test drive it 50 miles. The error codes returned. They currently have the van again for the same reason.

Filed Apr 3, 2026 · Electrical, Fuel system · VA

While traveling 350 miles from my home with my family of five, the vehicle experienced a sudden 'Loss of Motive Power' event. The dashboard displayed the message: 'Stop Safely - Vehicle Will Shut Off Soon.' I lost the ability to accelerate and had to navigate to the shoulder in high-speed traffic. The vehicle is currently inoperable and the 12V battery has since died because the Power Inverter Module (PIM) has stopped maintaining system voltage. This vehicle had Recall 03A (the federal safety agency 23V‑010) performed on July 7, 2023, and the more recent Recall Y40 update performed on March 11, 2026. Despite having the 'latest software remedy' installed less than 30 days ago, the vehicle suffered the exact safety failure the recalls were meant to address. This proves that the software-only remedy is insufficient to prevent the hardware failure (internal transmission wiring short). A formal Vehicle Scan Report performed at Lake Norman Chrysler (Dealer 60945) on 3/30/26 explicitly shows 'Distance Travelled with Light ON: 146 miles' (Page 14), documenting a sustained failure of the motive power system. Furthermore, the dealer’s own certified technician (J. Olmstead) provided a written Action Plan (Page 9) recommending a full Transmission and Power Inverter Module (PIM) replacement. Despite the documented 146-mile failure history and the technician's recommendation for hardware replacement under the XE1 Warranty Extension, the dealership service management is refusing to perform the repair, claiming they cannot 'replicate' the code as an active fault. I am currently stranded out-of-state with an unsafe vehicle that Chrysler is refusing to repair under the established safety warranty.

Filed Feb 24, 2026 · Electrical, Fuel system · TX

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.

Filed Feb 9, 2026 · Engine, Fuel system · WI

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

Filed Feb 6, 2026 · Fuel system · TX

In at least 3 different drivers experienced the engine shutting off while driving at low speeds. It happened either while stopped at the traffic light, or shortly after being stopped at the traffic. The engine stalled and the message on the dash said to stop the vehicle, turn it off, then turn it back on. Fortunately, we were able to coast to a stop and follow the procedures. We replaced the fuel module and fuel pump, which did not help. I did some research last night and found an article from CBS News dated 01/12/2018 for this issue that recalled some of the Pacifica minivans starting with the 2017 model. Our van is a 2018 Chrysler Pacifica. I suspect it was built AFTER the recall, but the software was not fixed when built. I want this fixed under the recall umbrella so I don't get charged for something Chrysler already new was a safety problem.

Filed Jan 28, 2026 · Electrical, Fuel system · CA

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.

Filed Oct 7, 2025 · Electrical, Fuel system · VA

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.