2021 Chrysler Pacifica Speed Control & Cruise Problems

While driving at normal road speed, the vehicle suddenly lost propulsion and entered limp mode. A turtle warning icon appeared along with multiple system fault messages. The vehicle began slowing down on it's own and was unable to accelerate. I pulled to the side of the road. The vehicle displayed an error "Stop Safely Vehicle Will Shut Off Soon". After sitting for a period of time, the vehicle restarted and was able to be driven again, but the failure occurred without warning and created a dangerous situation in traffic. Diagnostic trouble codes were present related to the hybrid system and high-voltage battery, including P1D43, P1A21, U029A, and U0412. These codes indicate faults in the hybrid control system and battery communication. A Chrysler service department inspected the vehicle, confirmed the trouble codes, and returned it to me without repair because the issue was not immediately reproducible at the dealership. The vehicle has a history of similar intermittent issues, including prior loss-of-power events and repeated service visits for hybrid system faults. The condition is not consistently reproducible, but when it occurs it results in a sudden loss of motive power while driving. This creates a significant safety risk due to unexpected loss of propulsion in active traffic.

I was driving on the highway ~57mph and the dash flashed warnings "Service Charging Station", and then I lost control of the accelerator pedal. It seems like the engine stalled, and I could no longer use the gas pedal. I coasted off the highway, then restarted the engine by turning it off/on. Once it was back on, I continued to drive, and I experienced the same exact thing. This is the 3rd time I've had an issue with the dash warning "Service Charging Station". This car has been in-and-out of service for ~2 months, since purchasing the new car around June 2021.

The car lost all motive power on 3 separate occasions on Saturday, Feb 4, 2023. The car is currently at the dealership and we've been told the transmission needs to be replaced. Our family's safety was put at risk as well as the drivers around us. We easily could have be rear ended when when we were on the freeway and lost the ability to accelerate. When we lost power each time we had to navigate to the side of the freeway or exit to avoid being hit by another driver. The dealer has not reproduced it (that I know of) but has said we need a new transmission. My fear is that we are going to get a new transmission that will do the same thing. There were no warnings before the failure. Once the failure happened, the engine and battery lights came on as well as another warning about the electrical system.

I was driving in stop and go traffic about 4 hours into a road trip on I95. At around 60mph, an error popped up on the dash saying “Service Charging System” then it quickly went away and said “Shift to P to Start” at which point I lost all propulsion. I was in the left lane and had to make my way to the side of the road with my family of 6 in the car. This was extremely stressful and dangerous as I had no way to accelerate and was stuck to coast. I flipped on my hazard lights and was able to navigate to a safe place under an overpass. At this point, I completely cut off the car and restarted it. It worked fine again upon restart, but the check engine light remained there after. The incident happened again on a side road at around 40mph on the same day. I coasted to a stoplight and had to power cycle the car 3 times to get driving again. The following day, I went to a local Chrysler dealership and they are still in the progress of diagnosing, however they won’t have a response until after Christmas. So, I’m being directed to rent a vehicle until the van is deemed safe to drive again.

Driving on highway and experienced total loss of power. Coasted to side of road. Unable to "restart". Error displayed "Service Charging System" Dealership ran software updates to remedy issue. One week later same issue. Driving on highway and total loss of power., same error message. Towed to another dealership. Diagnosed as dead 12v battery, but I doubt this diagnosis. Battery was not dead at time of breakdown, it died after 4.5 hours waiting for a tow with hazards on.