The component is known to fail on jeep forums weather it fails completely or was not installed properly and may loose its functionality. The event is when towing a trailer and reversing the car will see the trailer as an obstruction and will engage the brakes. The car is alleged to have an automatic system that when towing is supposed to turn the parking assist sensors off to prevent the event occuring. If that system isn't present there is a button that should allow you to turn the parking system off which it does for about two seconds and start backing up the trailer, then it will automatically turn back on and see the trailer and lock the brakes up which is jarring and startling to say the least. I am fairly certain this could cause an accident if it hasn't already.

- Feura Bush, NY, USA

Bought my Jeep used in Sept 2023. For the first time hooked it up to my small trailer to pick something up. Pulled around and went to reverse and the rear park assist braking jammed on. At first I wasn't concerned. I knew there was a way to turn them off based on my jeep manual. Unfortunately, the park assist would not turn off. Neither the park assist button on dash nor the settings in the computer screen would turn them off. The light on the dash button would turn on for 2 seconds but then turn right back off. In the computer settings, I would click the rear park assist to uncheck it. It would uncheck for a few seconds then check mark would come right back again. I tried to turn off the front park assist in the computer just to see what would happen. I can't turn those off either. This is extremely dangerous. I was very lucky I discovered this before I left my property. What if I was in a busy place, road, parking lot, etc. So I do have an appt with my dealer tomorrow, who claims to have never heard of this issue before.. But after doing simple google searches on the internet, I found numerous instances of many Mopar vehicles, like my Jeep GC, Dodge Durango, Chrysler Pacifica, etc. who have had the same exact issue when they try to tow something and cannot turn off the Park Assist feature to back up with a trailer attached. I also called the FCA US Customer Service line to tell them about this and they said they had never heard of this problem. Yet in the many forums I found where people have posted about this issue, they have had to get software update done on the Park assist module to fix this issue. So it is known, but FCA is not admitting to it being an issue. This should be a recall, or if nothing else, considered a necessary upgrade. Also found you have a report in your system already on this issue and I found a Jeep service bulletin related to this issue as well. I will see what the dealer says tomorrow.

- Windsor, ND, USA

Car has always run great till last week, turned off Jeep then tried to start-brake is hard, steering is locked, push button lights up acc and run but wont start, fob is good battery, car batteries are new, service tech at dealer cant figure out Im without a vehicle now for a week so far"??"

- Valley Center, KS, USA

This is [XXX]. On September 14, 2023 had a very big crash with our 2017 Jeep Grand Cherokee. My husband and Granddaughter were in the crash. Everyone is okay but the Jeep is totaled. At 7:00am, the Jeep accelerated out of control, my husband was trying applying the breaks, but the accelerator over powered the brake system. The car reached speeds of between 74-83 mph based on the Life 360 app our both my husband and granddaughter have on their phones.This occurred in downtown Lebanon KY during the morning school hours. He was unable to stop or slow down the Jeep. It resulted in him running through 2 red lights and 2 4 way stops. He also had to avoid hitting several cars and pedestrians including children. Finally the jeep skidded to the right of the road and hit a telephone pole, a bridge guard rail where the front passenger side tire was torn off, and went up an embankment and hit a tree. The police at the scene estimated the car hit the tree about approximately 50 MPH. No airbags deployed and of course the car is totaled. Our daughter drives our other 2015 Jeep Grand Cherokee and had the same issue a week before this happened but she was on an open road and was able to use the paddles on the steering wheel to disengage the cruise control and get the car under control. Jeep is saying that there is no recall so we will have to pay for the 2015 to be looked at. Of course we are going to do that immediately. The Dealer has engaged a 3rd party from Bosch to retrieve the data from the cars computer system but that has not happened yet. There were no warning lights on, the vehicle is awaiting Chrysler's inspection. The Insurance company deemed the vehicle a total loss based on the photos we sent them. The Police inspected the car after the accident. We have all the service records for both Jeeps. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Springfield, KY, USA

I was on the highway and the vehicle shut off. On another incident I was driving the vehicle and the power steering wen out on the vehicle. On another incident after the power steering went out the vehicle put a notice on the dash to put the vehicle in park when the vehicle was already in park. I tried to turn the vehicle off and it would not allow me to do so. Then after repaired multiple times the battery started to over charge to 21 voltage. At this point, the vehicle is just not safe to drive.

- Noblesville, IN, USA

My car loose power engine light and sometime A orange light. Vibration and cheking and clicking Temperature engine go up when start ac come down. I already change spark plug sprockets coil Water pump thermostat. I have same problem. Leaking oil. The inspection failed Code 0302 105

- Jersey City, NJ, USA

Hello, I was driving my 2018 jeep grand Cherokee about 2 months ago when out of no where the car turned off as I came to a hill, the radio volume increased all the way and I couldn't control it, the main break locked, the wheel locked and my shifter lock, I started to roll back down the hill and I had to use my e-break. the car acted like it was turned off but it just died, the radio never turned back down until the tow company did something. i took it to jeep and they were super unhelpful, they said it was a starter, so i paid 2000 to replace the starter to no avail. Now the AC/Heat goes on by itself or just doesn't work, the radio will go all the way up and i cant control it. however jeep in Englewood Colorado said there is nothing wrong with the car.. I think there is a safety issue with the start stop /eco mode. I think once the car turns off to save gas its not turning back on and there is no safe system. i have contracted jeep multiple times to no avail, the car has died on the highway 3 times now once while i was traveling 65 mph. I have paid for 6000 worth of fixes and its still happening.

- Littleton, CO, USA

I was stooped at a red light on a hill when the light turned green all lights in car turned on the brakes went out and the steering wheel locked. I was on a hill and almost crashed into a wall. I had no control over the car. Don't know how this happened. I was able to mange and pull to the side of the curve. I turned the car on and off a few times and the car went back to normal. I was very lucky I didn't crash into the wall or another car. This was at a busy intersection and I could have kiiled myself or and someone else. I have not driven the car since only my husband because im very scared. Today the malfunction light come on and we don't know if this is related. We called Chrysler and explained the situation but they can only schedule an appointment to see the car on 5/17/2021. This is a very serious issue and im surprised they wont see the car right away. And told us to wait another 5 days. I don't trust this car until it gets checked.

- Yonkers, NY, USA

Vehicle won't start when pushing start button and applying brake pedal. 2017 Jeep Grand Cherokee 3.6L V-6 engine, 44K miles. After turning off vehicle, it will not re-start when applying pressure to brake pedal and pushing start button. Replaced both main and auxiliary batteries, but same problem continues. Are there recalls or suggestions to fix this" I read that several vehicle have this problem what's the resolution"

- Gaithersburg, MD, USA

All warning sensors went off on the dash, my brakes locked, luckily at low speeds either while parked or pulling into a parking spot. It had to be towed 3 times, one time we had a little smoke coming from under the hood which turned out being the corroded harness. My brake lights were all stuck on. Jeep says it was the wheel speed sensor, 2 out of 4 have been replaced. I've also had to have my wiring harness replaced twice (within 6 months) due to corrosion. All of this happened at the same time.

- Orting, WA, USA

On 3 recent occasions my breaks have lost all pressure while reversing either into a parking spot or backing out of one, so fortunately I was not traveling very fast. I had to force the pedal all the way down to be able to stop and it made a very loud grinding noise. Only in 1/3 times the pavement was wet from recent rain.

- Nashville, TN, USA

Vehicle was turned on and stationary at my private residence, placed in park (no parking break) for me to hook up a chain to tow a compact tractor (within the towing specification of the vehicle). When I was behind the vehicle I heard a loud thunk and the vehicle completely rolled back (wheels were rotating) and smashed into the compact tractor causing significant damage to the trunk and side of the vehicle.

- New Berlin, WI, USA

After a few minutes when the car is parked and stationary on an incline in our driveway, it will roll about 3-4 feet and then stop on its own, all while vehicle is in park. This does not happen every time it is parked on an incline, seems to happen randomly.

- Vail, CO, USA

My wife, (xxxxx), was driving this vehicle. She was in a drive-thru, moving at low speeds when the brakes stopped working. Robin was able to roll to a stop in the parking lot. I responded to the scene to inspect the vehicle and observed that the brake pedal assembly had become disconnected from the brake booster plunger rod, completely disabling the brakes. Upon further inspection, it was determined that there is a retainer clip which holds the plunger rod to the brake pedal. This retainer clip was not installed and was not found anywhere in the area to indicate it had fallen off. There has never been any work done to the vehicle around the brake pedal assembly. It is my belief that the factory did not install the retainer clip, or did not install one correctly. Thankfully, this happened in a parking lot and no lives were lost or hurt. Redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- Cypress, TX, USA

On parking lot on reverse brakes completely shot down fills lake your hit on object and fills low down how save is this?

- Floral Park, NY, USA

When I purchased the vehicle, I was told it was flat towable behind a motorhome. After purchase I then had to spend $500 to have a wiring harness installed to prevent death wobble of front steering/wheels. The second time I towed the vehicle, the back brakes locked up destroying tires, rims, and other unknown items at thisw time.

- Clearlake, CA, USA

Takata recall. Was driving with kids and wife I began coming to a stop and was going about 10 to 15 mph when the car stalled out. It shut off and the steering wheel locked up along with the break pedal was nonoe functional as well as the gas pedal and the gear shift. The car would not go back into park and left me in the middle of the road for about 4 minutes. I finally got it into park and then it wouldn't start for a few minutes. This all happened on a major highway in my area. It finally started and we took it to the dealership as it is pretty much brand new. (33K) on the vehicle. The dealership has ran test and has told me that there is a 2018 Jeep in the same place doing the same thing. We have had the car there for about a month and they say there is nothing wrong with it and now we have to come pic it up. Something is definitely wrong with the Jeep as we was in motion, coming to a stop and was not turning. I would say it's a life or death situation.

- Florissant, CO, USA

Front brake pads and rotors required replacing at 23,000 without warning. An inspection at 17,000 miles was normal. Tire wear is normal and at 30,000 vehicle is still on its original tires. The vehicle has no warning system of brake pad wear

- Houston, TX, USA

While driving on the freeway at 60 mph and slowing for a turning car ahead, the cars emergency braking turned on and tried to stop the car. This has occurred twice this week.

- Leavenworth, WA, USA

2017 Jeep Grand Cherokee. Consumer writes in regards to problems with the ignition, analog speedometer and tire pressure. The consumer stated she was involved in a car accident in which the brakes failed.

- Oracle, AZ, USA