Table 1 shows one common back over prevention related problems of the 2017 Jeep Grand Cherokee.
| Problem Category | Number of Problems |
|---|---|
| Warnings problems |
Transmission failed. Stuck in drive while on busy road, could not put vehicle in park or neutral and could not turn vehicle off. Drove very slowly to dealership because no one would tow without being able to turn it off and stuck in drive. Dealership did diagnostic and decided transmission needed replaced. Safety of other drivers were put at risk because car could not be taken out of drive and could not be shut off. No warning lamps, no messages prior to failure. Message came on to place vehicle in park to reset after trouble started but nothing worked at that time. Would not go into neutral or park. The emergency brake had to be used to keep car from moving forward. I recently had transmission replaced (1/24/2025) and now have a check engine light on with a code reads p1dca park sensor circuit open.
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.
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.
The rear parking assist break does not turn off, yes it is available for inspection. I had an emergency, I could not reverse out of my parking spot because the emergency break would automatically stop my vehicle, it was sensing there was something behind it. The problem has been confirmed by dealer stated it is an internal failure with the factory radio. It has not been inspected by the manufacturer, they say, it's out of warranty so they are not responsible even though this was a defect since the beginning. I mentioned it to the dealer when I took my car for service, when I first purchased it, they said all I had to do was turn off the park assist button, that did not work. This is very concerning, its a safety hazard if I can not go on reverse due to the break automatically stopping my vehicle and impeding me from going on reverse. Jeep and mopar are ware of this issue. I am not the only person that has complained about this safety hazard/concern. There are countless individuals that have complained about the same issue.