2020 Chrysler Pacifica: start-stop system problems

Filed Nov 2, 2026 · Electrical, Engine · IL

Over the past couple of years the auto start-stop system has progressively gotten worse with erratic issues. I've been to the dealership, and have replaced the main and aux batteries multiple times to reset the system and fix the problem. New batteries do not fix the problem. The vehicle's electrical system has turned off the engine and stalled multiple times in the middle of intersections. The vehicle has shut down twice while attempting left turns across lanes of oncoming traffic and three times pulling from a side street onto a major road. This has started to happen everyday and is posing a safety issue for my two young children, family, and other motorists. This electrical issue is a well known problem of this model and multiple calls to the manufacturer and the dealership leaves me in the middle where neither want to provide a path for assistance as the dealership explains my issue as a manufacturer problem. In the past 3 weeks the electrical issue has impacted the vehicles ability to consistently start, sometimes the engine won't turn over and I have to jump the vehicle on an increasing basis. The start-stop system has created further electrical problems where the start-stop dash signal is on constantly, the dashboard lights up sporadically, and today the vehicle would not unlock by using the key fobs and with no physical key I am not able to access the vehicle.

Filed Jan 15, 2026 · Electrical, Engine · 52,000 miles · VA

The contact owns a 2020 Chrysler Pacifica. While the contact's wife was driving at an undisclosed speed, the engine seized in the middle of the road. The contact stated that there was no power to the vehicle. The contact stated that the failure occurred close to the residence, and there was not a lot of traffic. The driver was able to exit the vehicle and get to a safe area. The contact's brother-in-law was contacted for assistance; however, the driver became impatient waiting for assistance. The driver attempted to restart the vehicle, and the vehicle started. The help arrived, disconnected and reconnected the battery cables, and the vehicle was driven to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer; however, the dealer was made aware of the failure. The contact was informed that a recall was issued, but for Hybrid vehicles. In addition, the contact referenced an open investigation for the failure. The contact stated that the failure had occurred twice within two weeks. Additionally, the warning light that the “Auto START/STOP Unavailable” had remained illuminated since August 2025. The manufacturer was not made aware of the failure. The failure mileage was approximately 52,000. The VIN was unavailable.

Filed Nov 19, 2025 · Electrical, Transmission · FL

I purchased this van in March 2025, it was used about 62000 miles, but dealer said it was in good condition, no issues. In September 2025, a battery light came on, that also activated the Start/Stop could not be used and needed service as well as Service Shifter. I brought the vehicle in and they simply replaced the auxiliary battery and sent me on my way. On November 13th, I was driving and a battery light came on as well as the Stop/Start not available error, and then moments later said "Stop Safely Vehicle will shut off soon". Thankfully I was only moments from home, and made it safely with my 5 children who were also in the van. Obviously this is dangerous as the vehicle stopping while driving can kill myself, my children, anyone in my vehicle, as well as cars around me as I live in a busy area, Tampa, FL. This car had just been given a review in March when put up for sale, and I had brought it in for an oil change, as well as a motor mount replacement, and the aux battery change, before this. My car has been serviced multiple times and this should have been checked or errors/updates reviewed. This auto/stop start seems to be a key in the safety issues as well since that light comes on every time there is an issue. Now the dealer states they are going to replace my PDC, main fuse box, and see if that fixes the error, but I have read that this is an error in many Chrysler Pacificas and mine is another.

Filed Aug 23, 2025 · Steering · GA

1) A/C in the dash has loud non-stop clicking noise. Was replaced and has started up again. 2) Auto start/stop sensor in the cam went out. 3) Power steering rack went out when driving. Bought the car used from a Ford/Chrysler dealership with 65,000 miles. We have had the car for 3 months and they have had it in the shop for about 2 months

Filed Jun 27, 2025 · Electrical, Engine · FL

The vehicle was purchased 8/5/2023. 8/23/2023 the vehicle stalled while at the bus stop with kids. Would not start again. 10/26/2025 the vehicle again stalled but at a red light during rush hour. During this event I attempted to use the hazards so the traffic approaching was aware it was not working. The hazard lights would not work. The vehicle was not even allowing the neutral position to allow it to be pushed out of the way. I was on the side of the road waving down card watching about 20 cars (fairly assuming with no lights indicating otherwise that it was moving) I was flagging traffic on my way home from a night shift at a hospital in town. I had it towed home was able to charge the battery enough for taking it to the dealership. The axillary and main batteries both were replaced more than 3 times. I had the vehicle for three years and this was an ongoing issue the dealership never disclosed there was a battery cable recall and turned me away from discussing they also did not disclose this year make and model had a class action lawsuit and recalls for the stop/start system failure. They refused to help or report my VIN number. In March of this year it did it again. To allow this vehicle to be on the road is dangerous. I voluntarily surrendered it with that being said and the lender (Flagship Credit Acceptance) Is attempting to sell the vehicle and also refused to acknowledge any calls out of many calls I made to report the vehicle is dangerous. Both businesses did not disclose the recall and the vehicle is currently in storage I believe and I'm worried a family will end up very hurt if not multiple as that day where I witnessed about 15-20 cars come very close to ramming the back of it head on because it was not able to be moved.

Filed Apr 3, 2025 · Electrical, Transmission · IN

The entertainment system when super cold outside the screen goes black and does not work. The issue has made it difficult then to change heating and cooling settings and utilize the rear view camera and other safety features of the car. The dealership was able to update it to fix it once then the other two times it came back on before the appointment for the dealership. The auto/stop start malfunctioned while waiting at light.putting my whole car in park and locked up until I turned it off and back on. This occurred twice and put me at risk with being on busy roads in the day. Dealership was able to fix with a new battery. In the past and currently the car has shifted with a Jerk or lunge type movement making the driver worried and concerned about hitting cars around them due to this. The dealership replaced a transmission gasket but still does this and have not been able to find the issue on 3 other occasions. The car also is now not shifting properly creating a low humming grind type sound when driving on the highway and the brake pedal feeling weird. This has delayed speeding up and slowing down creating major safety concerns when driving on the highway. The dealership has not been able to replicate yet due to only driving on town roads and not the highway at this time.

Filed Mar 9, 2025 · Electrical, Steering · NC

The auto engine start-stop stopped working approx 2 years ago. Last week (early March 2025) my wife called and was panicking that “the engine stopped and the steering locked” while driving and a warning light and message appeared in the dash display - something like “service power steering”. I said it sounds like an electrical issue and she needs to add power steering fluid so I purchased a jug and went to meet her. While driving toward her location she called and said she looked online and found that her Pacifica has electric power steering, not hydraulic type. When I arrived the vehicle was working as normal and the message and warning light had disappeared. The same problem has repeated nearly ever day since then except the vehicle engine has not stopped. She claimed that she could not physically turn the wheel during these episodes and I tried to tell he that it is only because her forward speed is low and when going faster I said that it would steer easier - so I though from having no power steering in a few pickups back in the 1970s. Then I was driving this vehicle with her on 3/7/2025 in the mountains and the power steering failed and we nearly crashed at 35 mph as I could barely navigate the oncoming sharp corner. The power steering remained in a failed state for another few miles then came back on for a few miles, then failed again. The force required to steer the vehicle when the power steering fails is extremely high and I hate to think how many deaths and injuries this issue may have already caused. I came to your website and was stunned to see an existing recall for this exact issue, but stunned it doesn’t include our vehicle and therefore we have not been contacted - THIS ISSUE IS BEYOND EXTREMELY DANGEROUS AND WILL LEAD TO DEATH AND INJURY FOR DRIVERS WHO LACK AVERAGE STRENGTH!!! Please immediately expand the reach of the existing recall to contact all cars that have these electric power steering systems - you currently do not have all of us!!!

Filed Nov 4, 2024 · MI

When the car is stopped at a light, traffic or a stop sign the start/stop will throw the car into park, shut off the vehicle and put on the parking brake on. I have to start the vehicle back up and take the parking brake off to move forward. A light comes on saying the stop/start is not working. We have replaced the car battery and auxiliary battery for the start/stop feature which were purchased at the dealership. This has become a hazard to me while driving. This has happened numerous times and when I start the car, I will turn off the stop/start feature. This alleviates the problem but is not a solution.

Filed Sep 3, 2024 · Electrical · 33,000 miles · VA

The contact owns a 2020 Chrysler Pacifica. The contact stated that on several occasions while driving at various speeds, the STOP/START system warning light illuminated. The vehicle was taken to a dealer where it was diagnosed that unknown parts needed to be replaced. The vehicle was not repaired. The contact believed that the failure was associated with the federal safety agency Campaign Number: 19V348000 (Electrical System). The manufacturer was notified of the failure. The failure mileage was approximately 33,000.

Filed Aug 8, 2024 · Brakes, Electrical · IN

My problem started about a year ago with the auto start/stop light coming on- said it needed serviced. They replaced my auxiliary battery. Mind you, my van was only about 2.5 years old at this point (bought it brand new). So then about a month ago, same warnings. Stop/start isn’t working. I get it inspected at the dealership, they say everything is fine. Well yesterday, my van stopped emergently in the middle of an intersection. The brake engaged, couldn’t use any pedals, steering or switch gears. I had to shut my vehicle off and restart. In the middle of a busy intersection at 4pm. The auto start/stop light keeps coming on. Take it to the dealership today and they said it’s a sensor issue with my hood switch. My hood thinks it’s open so my van freaks out and stops driving. It’s a $540 fix. This is a huge safety concern. From what I read, this van has had numerous start/stop issues and sensor problems. It’s a 2020 with 62k miles. I’m glad I wasn’t on the interstate or somewhere more dangerous.

Filed Aug 1, 2024 · Electrical · OH

The stop start system on my 2020 Chrysler. Pacifica has been malfunctioning since 2021, I’ve taken this car into the dealer multiple times, and replaced the batteries that should’ve been covered by Warranty but weren’t and my car recently died completely, and had to be jumped only have to replace the battery changed again. I have complained about noises in the dashboard that sounds like ticking, and dealer says that’s not covered by warranty even though my car only has 50,000 miles on it, and at 13,000 miles, when I told them about it, they didn’t do anything about it. The electrical system will completely shut off, lights and warnings will turn on, and after pulling fuses, the system will start The vintage seats on the driver side have not worked for three years, I have informed the dealer about that and was at 15,000 miles and they still did not fix it after complaining every time I went in they finally said “it wasn’t covered under warranty anymore” even though I had complained about it and all the above when we were covered by the warranty. We even purchased an extended warranty when purchasing the car and it’s like jumping through hoops for them to actually look up what is actually covered and every a fight every time for them to not charge me what we already paid for!

Filed Nov 5, 2023 · Electrical · TX

On 11.03.2023 @ approximately 17:30 hrs I was stopped at a red light with my 9 year old in the car. A warning indicating the “hood popped”” appeared on my dash. It indicated the auto start/stop would not work. The van shifted into park mode on IT’S Own. I DIDN’T engage park mode. The PACIFICA did it on its own. Let me repeat this so you understand the severity of this matter. The 2020 Chrysler Pacifica made its own mind up and took action without a direct order from me or my hands. It engaged into park mode. It then told me I would have to restart the car in order for AUTO START/STOP to work. I live in Austin Texas. 5 o’clock traffic is a reality and in order to be efficient the commuter is only as good as there car. I must advise that this is not a game to me or my family. I understand the car industry in America cannot afford to fail which is why corners are cut. They are overlooked by government and the industry. the federal safety agency. You are aware this is a major problem. You are just as liable as the company who fails to accept responsibility due to the bottom line. This is not the first time nor will it be the last. Tell me what side of this issue do you want to be on. Does someone need to die or get hurt before you take this matter seriously. It seems to me that we’d rather watch folks suffer. What’s your price?