Multiple incidents of when applying brakes, the tachometer would increase as the Jeep down shifted and the Jeep would leap forward. Increase in speed. Delays in the ignition switch when starting. When applying the gas, the Jeep would have a 5 - 10 second delay in response and slow down instead of increasing the speed. As days past, the incidents with the Jeep leaping forward when applying the brake got worse and it got to be dangerous to drive. Almost rear ended a few people. Had to have Jeep towed to a dealership because it was unsafe to drive. The computer upgrade that came out in February of this year was not applied to this Jeep before it was sold to me.

- Rockport, ME, USA

Transmission has always been with problems, it has been in service for 3 times and for the last one has been there for 3 weeks, I'm still waiting for a solution. Vehicle is at the dealer waiting for a new transmission. I saw all the stories online about the transmission issues in this vehicle and decided I should also report my experience.

- El Paso, TX, USA

As I was driving on the highway (cruise control), I raised my right knee which accidentally bumped the ignition key which turned the car off. I turned to key to on, but no help, then start position, again no help. I then put the trans in neutral and was able to restart the engine. However, I could not shift back into drive. I had to pull off the highway, come to a complete stop before I could shift into drive. Fortunately I was on a two lane highway where I could safely pull off to the side of the road. Had I been in one of the middle lanes of I-5 near seattle, this could have caused a serious accident (me getting rear ended). Note that I able to duplicate this problem later.

- Seabeck, WA, USA

I was moving very slowly in the second from right lane on route 287 in New Jersey. In my attempt to change into the far right lane to be in my exit lane I accelerated heavily. The engine surged and made noise appropriate for the situation but did not actually engage in moving the vehicle for approximately 1-3 seconds. This could have caused a serious accident. Jeep dealership has been advised. Thank you.

- Mount Arlington, NJ, USA

I purchased a Jeep Cherokee 2015 on May 1st and started having trouble with the start/stop system on the 3rd. A passenger and I were coming to a stop and the vehicle completely shut off and stopped running. The control system, within the driver's panel, flashed start/stop system is unavailable, service start/stop system. I had to restart the car in the middle of the highway. It did this three times before we got home. The engine light also came on at this point. I did not drive it again until the next morning and hoped to make it to work and then take it to the dealer that afternoon. Well I shouldn't have done that... on the way to work, on the interstate, I started slowing down and the system did the same thing. As I sped up the gears starting sticking, the car was stalling and I finally had to pull over and restart the car. On the interstate!!! the car did this another four or five times before I made it to work and another three times before I got to the dealership. When I first arrived, they could not figure out the issue and no reprogramming fixed the problem. They did state that the car has a flash update (aka recall), which was not communicated to me when I purchased the vehicle. So finally today, Thursday, May 7th, (3 days later) Chrysler decided the car needed a brand new transmission. Wasn't the transmission brand new anyway"???" this purchase has been very disappointing and I am really concerned about the safety of these vehicles. I really hope this new transmission fixes the problem. I also hope a serious recall is communicated to the public before anyone gets hurt!

- Rome, GA, USA

1 day after purchasing the vehicle (Jeep Cherokee trailhawk) while turning into traffic, the vehicle shut down and lost all engine and steering and was completely disabled in oncoming traffic. The transmission check engine light, parking brake warning, and loss of 4-wheel drive warnings all came on. The vehicle was completely immobile and highly unsafe to drive. Chrysler/Jeep has advised they don't know exactly what is causing the problem and have offered several fixes, but they can not guarantee any of them will fix the safety issue.

- Marietta, PA, USA

Shortly before reaching her destination, the driver of our vehicle smelled an odor, but couldn't determine what it was. She continued onto her destination as it was just up the street. She parked the vehicle and was preparing to exit. Before she could exit the vehicle, a witness saw smoke coming from under the vehicle. She quickly exited the vehicle and saw the smoke. The smoke then turned black and she saw flames. The vehicle then burst into flames.

- Pekin, IL, USA

I was turning into my driveway and slowed down before hitting the slope, when I pressed the gas pedal to go up the driveway the engine revved up but the car didn't accelerate. After about a second the car jerked and sped up faster than normal to where I had to slam on my breaks to avoid hitting the garage door.

- Whittier, CA, USA

While decelerating in drive with the foot off the gas, or under light gradual braking, when the automatic transmission downshifts as the car slows between 25 and 20 mph, engine speed increases in the lower gear and the car accelerates slightly.this acceleration, with the foot off the gas and when one expects the car to be slowing down, though relatively mild, is nonetheless disconcerting and perhaps potentially dangerous. An appointment was made with the dealer for March 30 2015. Coincidentally, between the time the appointment was made and before the appointment, the customer received a mailed recall notice from Jeep regarding an upgrade to software for the nine-speed automatic transmission. On March 30 the dealer attempted the software upgrade and reported that when they test drove it, the transmission then would not function properly, and the car would only operate in "limp" mode. The customer was given a rental car. The next day, on March 31, 2015 the dealer notified the customer that consultation with Jeep and further diagnostics indicated two locking rings had broken or malfunctioned inside the transmission, and they were installing a new transmission. The customer also received a recorded message telephone call from Jeep on March 31, asking the customer to bring the car in for a transmission software upgrade. The new transmission is being installed.

- Rensselaer, NY, USA

My 2015, brand new Jeep has been acting sluggish, with a delay in shifting, poor highway pickup for a few weeks. My 17 year old daughter drove it a long distance and complained of similar issues. While driving to meet a friend the car began to loose power on the highway, there was no response when I stepped on the gas. I managed to coast to an exit ramp where I was unable to drive the car. The engine was running but would not move. I had the car towed to the nearest dealer and it has been 3 days and they still cannot diagnosis the problem other than saying it is transmission related. They ran the software update but still experience the same problem. This is an extremely dangerous and I was fortunate to be in a safe area, during the day when this occurred.

- West Hartford, CT, USA

2015 Jeep Cherokee purchased 2-24-15 with 8 miles on it. Two days later the check engine light came on and I was told to check transmission. Car needed brand new transmission after 2 days. Two weeks ago, the tire pressure light came on. Back driver's side tire keeps losing pressure. On 3-20-15 computer went out. I had no camera, no radio, no heat controls, no ipod player.

- Dyer, IN, USA

The vehicle was in park and started. All of the vehicle warning displays turned on including the check engine. This vehicle is practically brand new and this should not happen. I also had similar problems with a 2011 model. Vehicle sensors are also giving erroneous readings.

- Carolina, PR, USA

When I turned the car on the engine light came on and I brought it the dealer immediately. They told me the car needs a new transmission.

- Bardonia, NY, USA

I purchased a 2015 Cherokee sport in October 2014. Since then I have noted several recurring problems. Having never owned a brand new I thought perhaps there was some early mile growing pains but these problems persist. The screen malfunctions at will; sometime the rear camera is engaged when driving forward, the screen locks on the disclosure/acceptance page. Voice recognition/command has never worked. Unintended acceleration when at a complete stop (reminds me of an unruly dog on a leash trying to leap forward). Delayed acceleration when the gas pedal is depressed causing it to suddenly leap into motion risking hitting a car in front of you in city traffic (I live in los angeles ? this is particularly concerning) or a wall behind you (I back into my parking space). When parallel parking or in a 3 point scenario (D-R-D) the car, although clearly placed in the reverse the car will roll forward before reversing. Often putting the car in reverse, waiting several seconds (4 to 5) before releasing the break will do the trick but just as often, it makes no difference. Gear transitions are sloppy. This car does not shift it lunges. I'm surprised the [xxx] thing doesn't bite although it tries. I thought these were my pet peeves but it appears I am not alone. I wish I had read these earlier complaints. I would have returned it to post haste. I hate this car but am not in the financial position to buy another. Purchased from a dealer 50 miles away (best price) has made it difficult to take into the dealership. I have finally scheduled 2-days off from work to take it in. I wish I was in the position to not just drop it off but leave it there. If I had the money I would not hesitate. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Los Angeles, CA, USA

For the past week my 2015 Jeep Cherokee has been at the dealership; continuous screen/radio malfunctioning/ unintended car acceleration/ computer system malfunction, etc. I was told by the service manager that they have no clue why my vehicle is not functioning correctly or accepting their several attempts to 'update' my vehicles system to correct the various problems. The manager went on to tell me how my car is "rejecting" the new part they tried to install. I did not know vehicles had the ability to 'reject' mechanical parts. He said they had to contact Chrysler to find out how to fix my vehicle; I truly thought the "Chrysler" dealership was Chrysler and mechanics there were trained to fix all of Chrysler vehicles, shame on me. At this point I am truly afraid to drive the truck, especially with the Chrysler dealership not knowing how to repair the various problems with a 2015 model. I also noticed the Jeep starting with 1C4pj seems to have all the problems. With Chrysler noticing it as well, why not just replace the Jeep sold in that batch?

- Killeen, TX, USA

I noticed my motor was surging(refine up) when I would break and then eventually break when I continued to break. So I took to stetler Dodge york pa and the said they weren't sure but there were flash updates that needed done in regards to the transmission so they needed to keep the Jeep. They kept the Jeep called and said the transmission module needed replaced so they replaced. I pick up the car drive it less than 5 miles and the auto shut down alarm started going off and the check engine alar, went off. The car then begins to rev and will not shift its at 40 mph and at 5 Ram. The auto start no longer works ect... this is a brand new car I am paying for and when I take it for these issues they now tell me the transmission needs replaced. This is ridiculous. This car is turning into a lemon quick. Twice in the shop and own it less than 3 months.

- York, PA, USA

2015 Jeep Cherokee 2.4L. Jeep has less than 200 miles. Car was brought in for service due to sudden acceleration while decelerating at approximately 25 mph. Car would slightly accelerate and the RPM's would jump from around 1400 to 2000 without my foot on the gas pedal. Dealer service department had the car for 1.5 days and said that I had the most recent "flash" after driving off the lot the issue still exists. Car will lunge/accelerate and RPM's jump while decelerating and foot is off the gas pedal.

- Fraser, MI, USA

2015 Jeep Cherokee latitude. Fwd 2.4L engine. Car shifted extremely hard at low speeds/gears. Car would lunge and accelerate while car was decelerating. Acceleration and lunging/shifting was occurring while foot was off the gas pedal.

- Fraser, MI, USA

After sitting at the dealership for the most part of my day, I left with the same problem as I came to get fixed. However, in addition to my radio not functioning; which was supposed to be fixed after this my second upgrade in 2 weeks, there was the additional matter of my engine light coming on as I left the dealership from having my radio 'fixed'. so I find myself back at the dealership today for my radio that was not fixed the yesterday and my engine light that came on after leaving them the day before. When I spoke to the service manager, he said the radio is getting another update; apparently the update yesterday and last week wasn't enough. Also, now I need this detrimental engine part that mysteriously went bad over night. He said they don't have the part and I will have to drive my car with the engine light on until the part comes in. I informed him how uncomfortable I am with that suggestion since my first visit was for the radio and the car accelerating by itself out of nowhere. Currently, I am in prayer hoping the humanity sets in and they don't send me on my way in a vehicle that is not safe to drive. Pray for me.

- Killeen , TX, USA

While my wife was driving today she noticed when trying to find a parking spot, the engine speed increased without foot on gas pedal, she had to hard brake to get vehicle to stop. I took it out tonight and as I was in city traffic the Jeep would race up to 2000 rpms when foot was on the brake. I had to press on brake harder than normal to get the vehicle to not hit the car in front of me. Called dealership to report problem. At this point I am scared for anyone in my family to drive the vehicle. The same thing happened at least 4 times on the way home.

- Cedar Falls, IA, USA