Automatic Transmission Control Module problems of the 2017 Chrysler Pacifica

At low speeds when shifting into 2nd gear the car slips, rpm's raise and then it suddenly and aggressively jerks into 2nd gear. If the start and stop feature is enabled and you are in a situation where the feature is engaging and disengaging like traffic then after a few of the jerks into 2nd gear it seems the pcm will get discombobulated and display a p0732 error.

Issue started June 25, 2022. Initially, the shift knob would intermittently lock in park while the engine was running and foot on the brake, unable to shift out of park. Eventually problem cleared itself. Was advised by local auto parts store to replace aux battery and issue should clear. I replaced the auxiliary battery myself the dealership installed the main battery on July 6. Dealership was unable to diagnose. No issues for about 1 week. Problem started again. Check engine light came on along with service shift sensor error message. We made an appointment for the dealership and returned with it on July 19 and told them we needed it back by July 21 end of day. We got the car on July 21. Dealership was unable to service. On July 22, we pulled into parking lot and all systems and vehicle shut down. Multiple error messages. Finally got the car started again and had to wait several minutes for the shift knob to "unlock". Was able to reverse out of parking space but after shifting the knob into drive, the transmission remained in neutral leaving me stuck in the middle of traffic lane unable to drive. That cleared after a couple minutes, and I was able to get it home. I opened the hood and the battery terminals were loose. I tightened them. The negative terminal on the main battery would not tighten down. I replaced the neg terminal with oem part from mopar auto. The error cleared up for several days. On August 1, my wife was driving the car and the transmission shifted into neutral on it's own and then slammed into park in the middle of traffic without warning or shifting the knob. This was a very dangerous situation! we made an appointment for Aug 8 with another dealership. The vehicle had 84 error codes tied to this issue. They determined the vehicle needed a new electronic shift module which they replaced and tcm was reprogrammed. We got vehicle back Aug 12. Shift knob still locks in park. Still not fixed and will not drive due to danger.

Around 35,000 miles - mil light came on showing dtc p000d (camshaft position slow response bank 2). Followed by rough up/down shifts, lack of power on acceleration, lack of downshifting as expecting, and rough idle at low speeds. Code self cleared and mil disappeared. Engine oil checked and changed. Code came back/self cleared until vehicle was taken to dealer at 47,317 miles. Below service was performed - included checking the camshaft - sensors and replacing the pcm under warranty. Now at 52,000 miles and six months later - dtc p000d, rough shifts, lack of acceleration and rough idle have come back. Dealer does not have any availability until 4/23 - however an appointment has been made. Dtc comes and clears. But rough shifts persist. 08-24-2021 -47,317 scheduled maintenance vehicle inspection(s) check battery inspect brake system tires good - green diagnostic system test cam shaft rental sublet lube/oil/filter fuel system service.

I was driving in stop-n-go traffic between 0-25 mph for about 10 minutes, when the car stop responding to acceleration. The engine was still on. I was lucky to be able to pull over to the left shoulder, but there was a lot of traffic behind me, and could have been rear-ended with my family inside the vehicle. Once I pulled over, I saw that the "engine fault", "parking brake fault" lights had come on, and the dash displayed "traction control disable". There were other messages that came up. I tried to put the car in "park", but the shifter didn't respond. I turned off the vehicle and started it back up. All the fault lights were still on, and the shifter was blinking between "p" and "l" for no reason. I shut off the engine again, and attempted to restart a second time, with the same result. I shut off the engine again and waited for about 3 minutes before restarting. This time I was able to put the car into d, and go to the dealer to check up. Needless to say, this was very dangerous, not knowing if the car could malfunction again and if I would lose control again. I have taken this vehicle to the dealer 3 times before regarding a rough gear change at low speed. Each time the dealer updated the program on the transmission control module (tcm) per Chrysler factory bulletin, and told me to drive it and eventually the computer will "learn" my driving habit (as if somehow I am at fault for accelerating the vehicle). On this occasion, the dealer replaced the tcm, but gave me no assurances that these problems would not occur again with the new tcm. Unless Chrysler can explain what was the problem, and what they did to fix it with the new tcm, I feel there is a safety concern/risk with this vehicle.

This is my 3rd problem to be reported to NHTSA on this 2017 Chrysler Pacifica. The "l" gear should typically slow down the vehicle when engaged, especially going downhill, so that you can use the transmission to slow the car down and use less braking. On a recent trip on I-5 the grapevine, I used the l gear to attempt to slow down the vehicle on a steep and long descent. Instead of slowing the vehicle down immediately upon switching to l, the vehicle actually sped up 10 to 15 mph initially before it starts to slow down the car, creating a very dangerous situation especially when vehicles in front of me were slowing down too on the descent. I took it to the dealer, and they actually replaced the tcm because of another dangerous problem (see complaint 11405469, March 2021) with the vehicle. I have tried the "l" gear again after, and it still does the same thing. The dealer says they cannot replicate the problem because there is no downhill where they can test for this problem.

I have encountered a rough / hard transmission shift condition, from a standing start, primarily when the transmission shifts from 2nd to 3rd. This condition is consistent with Chrysler case number s2021000005. I have noticed that just prior to the hard shifting that the engine rpm goes up to approximately 3,000 rpm and then shifts hard into 3rd gear. Additionally, the hard shift condition seems to be more prevalent when the acceleration occurs while turning right. I had my vehicle serviced at my local Chrysler dealer (northtown Chrysler Dodge Jeep ram) who (1) reprogrammed the transmission control module and (2) performed a quick learn on the transmission. This is consistent with Chrysler's service recommendation under the above mentioned case number for this condition. However, Chrysler indicates that this service may not fully resolve the issue and another quick learn may be required in the future. My concern is two-fold. First, what damage is being done to my vehicle's power train as a result of this hard transmission shift and extreme rpm condition prior to encountering the hard shift condition. Second, Chrysler indicates that they are aware of the issue and are developing a resolution - when might that full resolution be available?.

Second time happening. Suddenly quit running again at 40 mph while going up small hill on July 2nd around 2 pm on trip back from market. Had driven about 5 miles total. Also, this time parking brake would not release. This vehicle is a highway hazard. Supposedly the problem was fixed on June 23rd by reprograming the transmission control module. Waiting for dealer to explain what they are going to do this time. . . .

Vehicle suddenly stopped in city traffic and was unable to move. Pulled parking disconnect and was able to drive 6 miles to dealer, vehicle has 14,150 miles at time with no prior problems. Dealer was able to "fix" by reprograming tcm (error code p0975) this could have deadly on an interstate. This type of sudden stall needs to be corrected as I have read others reporting same situation.

Tl the contact owns a 2017 Chrysler Pacifica. The contact stated that while driving at an undisclosed speed, and shifting from 2nd to 3rd gear, the vehicle lacked forward motive power with an abnormal clunking sound coming from the engine. The vehicle was taken to hall Chrysler Dodge Jeep ram virginia beach (3152 virginia beach blvd, virginia beach, va 23452; (877) 475-0721) who stated that a transmission hard code was retrieved by the dtc scanner. The dealer replaced an unknown part in the transmission control module however, the failure recurred. The dealer then stated that the hub flange needed to be replaced. The vehicle was repaired, however, the failure continued. The manufacturer was not made aware of the failure. The approximate failure mileage was 20,000.

My 2017 Pacifica was recalled in January 2018 for the engine stall problem. Chrysler told me they might not have a fix for the problem until the 2nd quarter of the year! I told them that I wasn't driving a dangerous car around. I brought it to the dealer and it sat there for a month while I drove a rental. I was then told that the pcm was updated with software and it was fixed. After a picked it up I got a notice from Chrysler saying that I didn't need to do the repair because it was fixed during the prior recall for egr valve??? well, while driving last week, the car stalled six times in two days! one of times I was parked and idling, another time, I was slowing down for a light and the other times I was just driving. I had it towed to the dealer and they've had it for a week and are in contact with Chrysler trying to remedy it! whatwver they did to "fix" this recall previously did not fix it as the very dangerous problem is still happening! will not drive my family around in this terrible car.

Van loses ability to go forward while driving. Dash lights all come on and engine begins to cough and stutter leaving me stranded in traffic. Dash codes include "service electronic stability control, engine light, "parking brake temporarily unavailable," and other dash icons. It will move forward at idle speed only-no accelerator. I have had it towed to Chrysler dealerships 3 times and was able to drive it in a fourth. This issue has nearly caused 2 accidents-one of them with the potential to cause serious harm. While moving in traffic the van stops going forward and decelerates quickly causing traffic behind it to have to swerve to avoid hitting it. It has also occurred in the middle of a turn from a stop onto a state highway. This instance required other drivers to swerve into another lane and onto the shoulder/curb to avoid hitting me or vehicles in other lanes. It has occurred immediately when starting the van in a parking lot. It has occurred at low speed in a subdivision. Chrysler refuses buyback and continues to tell me to drive the vehicle. All recalls have been done, the pcm has been reprogrammed/replaced 4 times, the "harness" has been fixed/replaced 3 times. Both of the sliding doors have had to have the motors replaced on separate trips to the dealership. This vehicle is an electrical nightmare and Chrysler is not dealing with it. This began at about 14,500 miles and within the 1st 7months of buying the vehicle brand new. I have been trying to get this resolved for 6 months with no help from fiat Chrysler or the dealer- shuman Chrysler. They continue to make it run and let me drive it for a short period until it stops again. My family is going to be seriously hurt in this vehicle and there doesn't seem to be any recourse.

Brand new. . . Owned less than a month. . . 750 miles. . . We live at the top of a very steep hill with a sharp curve at the bottom. I reversed out of my driveway onto the street and shifted the van into drive. I felt the car go into gear and I started rolling down the hill, as it's a steep incline you pick up speed quickly. As the van gained speed down the hill something felt "wrong" and I suddenly realized I wasn't in full control of the vehicle. With the sharp curve quickly approaching I stomped the brake and brought the van to a stop. I put the van in park at the bottom of the hill and tried understand what was going on. I put the van back in drive, felt it go into gear but when I tried to accelerate nothing happened. Put in it reverse, felt it go into gear and it started to go backwards a little herky jerky but when I pressed the accelerator nothing happened. I had to put it back in park, turn it off and then restart it before it I could drive it back up to my house. I took it to the dealership the next morning. Turns out it was the day after the dealer received notice of the recall. I was told my VIN number fell under the recall, my pcm needed new software and they couldn't do anything until Chrysler provided the fix which wasn't expected until April and they couldn't even sell the ones on the lot. Call Chrysler! I have called Chrysler almost everyday for the last 2 weeks and all I get is a "sorry but I can't do anything, waiting to hear from the regional supervisor". I live in atlanta and if that happened on I-285 (5-6 lanes) you would be roadkill! there is absolutely no way in hell you could stop the car, put it in park, stop the engine and then restart safely. At this point it's a $32k rolling death trap that Chrysler won't/can't deal with. . . 100% unsafe for my wife and 3 kids!.

Current mileage: 5560, my van is currently in shop for transmission related issues for the third time. The vehicle looses all the power all of a sudden in the middle of the road while driving. I have had this happen on four different occasions, couple times on highways and couple times on city streets, have to pull to a shoulder immediately (glad I could). Have to try 3 to 4 times to start the vehicle and sometimes even hard to durn the dial to get the van moving. On my first visit to the dealership they have mentions its tcm software issue, second visit they said it was tcm line issue, had to order parts and get it fixed, took 10 days. Now three weeks later have similar incidents happen and now the van is back in the shop, they said they have to order smoother part in regards to transmission and its on back order. I am worried about the safety of my family with this van, I have called the company and informed them about my concerns, I searched through the web to see if there are others experiencing the same issue and I have seen quite a few of them in the same boat. Seems like a known issue with this transmission. Not sure of the direction I need to go in this regards.