When cruise control is set, the truck begins to accelerate rapidly, hitting over 4,000 RPM's. decelerate and cancel does not work, I have to use the brake pedal to disengage the cruise control. When this happened once in the past, I thought it was something I did or a fluke. Then it happened a second time and beginning 6/6/10, I discovered it now does it every time and I am no longer using the cruise control.

- Middletown, NY, USA

The contact owns a 2006 Jeep Grand Cherokee. While attempting to shift into drive gear, the vehicle suddenly accelerated, causing the contact to crash into a tree. The contact injured his back and a police report was filed. The vehicle had not been inspected or diagnosed at the time of the complaint. The current and failure mileages were approximately 20,000.

- Holidaysburg, PA, USA

The contact owns a 2006 Jeep Grand Cherokee. The contact was driving approximately 50 mph. The vehicle accelerated without warning. The brake pedal was engaged; the vehicle proceeded to a complete stop. The vehicle was able to continue functioning normally. The failure mileage was 50,000. The current mileage was 59,000.

- Chulavista, CA, USA

Stopped for gas. Started engine and there was great and unexpected acceleration. Had to maneuver to reach the exit area---kept my foot on the brake and went forward with the engine straining, put it in reverse, same thing. Couldn't 'de-accelerate'. moved forward a bit and shut the engine off. If I was not quickly in control of that vehicle there would have been fatalities wrote Chrysler and received a response that there were no recalls on this model. Took it to the local dealer service department. He put it 'on the computer' and by the end of the day found the problem. He discovered a service bulletin dated May 13, 2006 which applied to Grand Cherokee equipped with the 5.7L engine. It described the problem and the solution. This warranted a recall. Why couldn't the owners (lessees in this case) be notified to bring their vehicle in to correct a defective part of the vehicle computer (P2112). What a simple solution for a dangerous defect!

- Ewing, NJ, USA

The contact owns a 2006 Jeep Grand Cherokee. While decelerating to 30 mph in the rain, the contact approached a stop and the vehicle suddenly surged forward full throttle. He depressed the brake pedal with maximum pressure, but the vehicle would not stop. The contact merged into an intersection, barely missed another vehicle, and swerved into a driveway. He placed the vehicle into neutral and successfully applied the brakes. The dealer stated that they had never heard of this failure, but currently are keeping the vehicle for a diagnosis. After online research, the contact discovered numerous consumer complaints on unintended acceleration of his model vehicle. The current mileage was 20,325 and failure mileage was 19,382. Updated 5/30/08 updated 05/30/08

- Concord, MA, USA

I was exiting a freeway off ramp and had my foot lightly on the accelerator to keep the momentum up the inclined off ramp when I took my foot off the accelerator and steppe D on the brakes to begin slowing down the car kept accelerating at the same rate of speed, about 30 mph. I was pushing down on the brakes as hard as I could, and I could feel the antilock brakes pumping, and the car was only slowing slightly. I then had to veer over from the right lane to the left lane and then run the car into the curb in order to slow it down and avoid other cars parked at the top of the off ramp. After running the vehicle into the curb the car stopped accelerating and came to a stop several feet later. As a result of the incident, I was left staring over the side of a roughly 100 foot tall off ramp only a few feet from the edge. The rim of the wheel was gouged by the concrete curb, and the side wall of the tire had a deep scuff on it. I took it to an authorized dealer, where they checked the car, which was still on its original warranty. They found no problems with the car, and said that because they could not duplicate the problem they w fix it. They did mention that one of the mechanics had the same problem with his wife's car, the same model as mine, and her car was totaled. In summary, I they manufacturer did nothing to remedy this serious safety issue, and I really have no other recourse but to hope that this serious issue happens again, so that they can possibly replicate it and fix it!

- Simi Valley, CA, USA

An employee of mine at my full service carwash got into a Jeep Grand Cherokee and after she started it and put it in gear the vehicle took off and collided with another customer vehicle.

- Duluth, MN, USA

2005 Grand Cherokee Laredo. 8 pm. Turning right into my driveway, foot on brake, sudden unintended acceleration occurred, car raced down steep driveway, roaring, I turned it uphill into trees, and it was stopped by trees. Still revving loudly until key turned off. Air bags did not deploy. Front end pretty smashed up.

- Aspen, CO, USA