Driving my Grand Cherokee on I-40 with cruise control set to 75, I entered a construction zone and applied the brakes to slow down. Instead of slowing down, the car accelerated up to about 90 mph. I was speeding in and out of traffic like a mad person and, luckily, I managed to keep my wife and I alive. Then the brakes were on the floor, I could not disconnect the cruise control, could not shift out of gear and could not turn the car off. After a period of time, we began a slight incline and the car slowed. Then I had control for a short time when the power steering went out; it came back on after about a minute. We were towed to the nearest dealer (70 miles) and the car remained there in order for Chrysler to send a team to investigate. After 4 weeks Chrysler informed me that there was no problem. Tell the truth, I competely expected them to not take blame for this. This was the most frightening thing that has ever happened to me - I thought for sure that we would be killed - weaving in and out of diesel trucks and construction zone. I took out barriers and traffic cones in my effort to save us. I had serious concerns about operating this vehicle again but my thought is that Chrysler probably fixed the problem without taking responsibility for it. I did discover that there is something you can do if you are in this predicament and I wish I had known about it before. If you hold in on the start button for a few seconds, the car will turn off. I had held in on the start button but, evidently, not for long enough. I hope that this message can get out to other Jeep owners and that this action could save lives.

- Lake Havasu City, AZ, USA

Note: I entered an erroneous VIN number on my complaint a few minutes ago. My description of the problem was listed on that complaint.

- Lake Havasu City, AZ, USA

The incident occurred on or about Thursday, April 10th 2019 at 12:10am. It involves the brakes of the vehicle not being able to stop the vehicle at low speeds. The entire incident was captured on a high-quality front-facing dashboard camera with audio, video, and gps. There were no injuries. Description of the incident is as follows: While I was on the interstate 10 West freeway in redlands, ca, I maneuvered to the most right lane on the highway in preparation to approach an exit less than 1 mile away (university ave.) due to lane closures (left lanes) at the time I was on the freeway, traffic was bumper-to-bumper and very low speed. While in the most right lane and still at very low speed, I engaged the adaptive cruise control feature on the vehicle. Within around 5 seconds of engaging the adaptive cruise control, the vehicle slowed down to a stop because of the vehicle in front of mine had stopped. At that point, the cruise control feature self-disengaged as normal. Only a few seconds later, the vehicle possibly abnormally vibrated. As the vehicle continued to creep forward in traffic as normal, I applied the brakes to stop, but the vehicle would not stop or slow down. As I nearly approached colliding with the vehicle ahead of me, I engaged the parking/emergency brake with my foot, and that did not seem to slow or stop the vehicle either. A second attempt to engage the parking brake did nothing as well. Within a few seconds, the car almost slowed to a stop due to rolling friction and a slight uphill grade in that portion of the freeway. I placed the vehicle in park at this time and restarted the car. After restarting, I was able to drive and brake properly the rest of my short journey home. This entire episode is captured on my dashboard camera, and it seems others on the internet have complained about this issue as well.

- Redlands, CA, USA

The vehicle was being parked and from shifting from drive to reverse the vehicle turned off and would not start again for a few minutes. The vehicle showed the service keyless system and the check engine light then appeared.

- Chicago, IL, USA

When in motion, transmission downshifts to first gear. Engine races.

- Walhalla, SC, USA

Vehicle's forward collision warning (fcw) system activated a brake! alert with no hazard present. Driver information center keeps displaying message indicating acc (active cruise control)/fcw system not available off & on. Vehicle was in motion at the time of the false alert.

- Whitehall, MI, USA

I've read about a recall regarding the cruise control but haven't received the notice and my dealer will not take care of the problem without it. I want it fixed so I can use my cruise control

- Charleston, WV, USA

I have a 2015 Grand Cherokee that has been in for the rollaway recall. Tonight I pulled into a parking lot, got out of the car quickly to see how far I pulled in, and the car started rolling backwards. I thought the car was in park but in turn it was not. The car was in reverse. Previous to tonight I've had this happen and as soon as you let go of the brake, if the door is open, the "auto park" kicks in and the vehicle goes into park. That did not happen. I was able to catch the car before it went to far and get it in park. After that incident I took videos on the behavior. Repeatedly going from park, to reverse, or drive with the door open, taking my foot of the brake and every time it rolled and auto park did not apply. Turned the car off and on a few times and still, no auto park. The videos are to large to fit into the 5 mb limit but can be sent by any other means you have available or here is a link to them on onedrive. Https://1drv.ms/F/S!airasnb8ajcyg1xqr6wwntqyirj8 I do not feel safe driving this car as the recall does not work. If a satisfactory fix cannot be made I would like to discuss what options are available to me. Thanks....updated 11/13/2017 the consumer stated the another trigger for the auto park was wearing a seatbelt. The seat belt has to be off, not in park, and the driver's door open in order for it to work properly. This seemed to be the intended behavior so, the consumer would like to have the complaint disregarded. Updated 11/30/2017

- Fort Collins, CO, USA

I was traveling up interstate 95 just passed exit 26 in Connecticut. As I approached exit 27 a a vehicle in the exit only lane merged into the slow lane in front of me. I proceeded to then accelerate around the vehicle that had crossed in front of me and immediately as I accelerated the vehicle began to accelerate uncontrollably to an unsafe speed. I shifted the car into neutral and braked and steered appropriately. As my vehicle began to slow I then proceeded to shift the car back into drive hoping that the issue would be resolved. While my vehicle was a neutral I tapped the gas pedal in hopes of if it was jammed or stock it would come loose and I would be able to control the acceleration of the vehicle. Unfortunately the pedal did not come on stock as I proceeded to drive I realize that my speed was dropping to an unsafe rate while being on an interstate I proceeded to shift my car back into drive only to have the pedal that was still pressed to the floor accelerate the vehicle uncontrollable to again in unsafe speed. After I proceeded to stomp on the throttle in hopes of loosening it from whatever it was that was causing it to be stuck in the open position, the pedal finally returned to its on stock position with a loud bang. I don't proceeded to steer immediately off the highway at the next available exit and turn the vehicle off...updated 04/20/17..updated 05/09/17 the consumer stated the floor mat closest to the accelerator was trimmed, but the failure recurred. The dealer was unable to duplicate the failure.

- Bridgeport, CT, USA

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that the vehicle hesitated to accelerate when the accelerator pedal was depressed. The contact stated that the speedometer read a higher speed than the actual speed of the vehicle. The contact received notification of NHTSA campaign number: 16V529000 (power train) however, the part for the recall repair was unavailable. The contact stated the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure the failure mileage was approximately 32,000. Part distribution disconnect. Updated 03/01/17

- Millersburg, OH, USA

I own a 2015 Jeep Grand Cherokee Laredo limited, purchased from a dealer new. Last week I pulled into my driveway, turned the Jeep off and went to get out and my alarm system went off. Could not turn it off with either fob, I was even able to start it up and drive. Remote start would not work for 3 days. Cruise control just turns off when it wants while driving on interstate over 60 mph. Gps states I'm off route and freezes in the location where it happened on interstate, normal weather(no overcast/fog). Wipers just start working while sitting in the driveway idling, as you're driving...no dust, rain, bugs etc...windshield leaks and rain comes in from behind the rearview mirror/sunglass holder when it rains and you have to take a sharp turn(not with normal turns)...leaks down on cell phone which sits in little cubby to charge. The vehicle surges when going under 20 mph, usually when you are trying to start from a stop is when it' worse. Under 25K miles and I am afraid as to what might happen next.

- Elmira, NY, USA

The contact owns a 2015 Jeep Grand Cherokee. While driving 35 mph, the vehicle independently engaged the sport feature and revved rapidly. The vehicle accelerated rapidly as if it were in overdrive. The failure recurred intermittently. The vehicle was taken to the dealer where it could not be diagnosed, but the cause of the failure was not found. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 70.....updated 08/29/16 updated 08/30/16.

- Clayton, NC, USA

Vehicle often does not engage in gear. Eventually when it catches gear, the vehicle lunges considerably in gear forcing the car to jerk forward. It happens more often when going slow in traffic or going up and down hills. Very unstable in these situations. In one specific situation in traffic, car did not catch gear and then when it engaged, jerked forward into car in front of me.

- Sherman Oaks, CA, USA

The vehicle locked when I was stopped in traffic in the highway, rendering the vehicle disabled in traffic while in drive. I pressed on the gas pedal but did not move. I hit my emergency lights placed the car in park and then shifted back to drive but got no movement. I then turned off the vehicle and restarted the vehicle and was able to move off the highway and took the surface streets to get home. I saw on this "site" there is a recall for 2016 models which is recall S28.

- Los Angeles, CA, USA

The contact owns a 2015 Jeep Grand Cherokee. When placing the vehicle in park, it rolled away without warning. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure. The failure mileage was 5,000.

- Woodruff, SC, USA

The contact owns a 2015 Jeep Grand Cherokee. While the vehicle was parked, it independently shifted to reverse. The failure recurred numerous times. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The VIN was unknown. The approximate failure mileage was 19,000. Updated 04/29/16 updated 6/19/18

- Summerville, SC, USA

The contact owns a 2015 Jeep Grand Cherokee. After switching to the park position and exiting with the engine running, the vehicle suddenly drove forward and struck a second vehicle. The contact sustained an injured right arm. Medical attention was not required. The vehicle was taken to the dealer who was unable to duplicate the failure. Also, while driving at various speeds, the collision avoidance system randomly activated and caused the braking system to abruptly stop the vehicle. The vehicle was taken to the dealer who was unable to duplicate the failure. The manufacturer was not notified of the failures. The VIN was not available. The failure mileage was 1,000.

- Los Gatos, CA, USA

The contact owns a 2015 Jeep Grand Cherokee. While driving approximately 30 mph, the vehicle stalled after the electronic throttle control warning indicator illuminated. The vehicle restarted; however, the failure recurred on several occasions. The vehicle was taken to the dealer where it was diagnosed that the throttle body software needed to be updated. The vehicle was repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 3,000.

- Jacksonville, FL, USA

While driving the 2015 Jeep Grand Cherokee on cruise control, I needed to accelerate to avoid a traffic situation. I stepped on the accelerator and nothing. It did not engage to speed up even though I pushed the accelerator all the way to the floor. I removed my foot from the accelerator and stepped on it again, hoping it was a fluke, but still no acceleration. It did maintain the set cruise speed of 65 mph. It took approximately 15 to 20 seconds or more before the accelerator finally engaged. I had driven the vehicle earlier in the week for one 8 hour straight and two 3 hour straight trips with no issue. On this trip I had driven the vehicle for 5 hours prior to this event. Stopped and rested for about an hour and then proceeded to complete my trip. About 3 hours into this last leg is when this happened. It hasn't happened before or since (yet). I have previously reported to the dealership that there are many times a brief, second or second and one half delay from when I step on the accelerator before the accelerator engages. This is sporadic and doesn't seem to be a consistent problem. The salesman and the general manager indicated they haven't heard of this problem from other owners. I understood this is an inherent problem with the Toyota Tundra and assumed it to be related to the electronic acceleration process as compared to the old cable acceleration linkage in years past. I had in fact updated the software related to the recent recall through the uconnect web site, at least a week before this event.

- Hope Mills, NC, USA

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while driving at an unknown speed, the vehicle auto accelerated without warning. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 5,500.

- Monroe , MI, USA