2011 Jeep Grand Cherokee: adaptive cruise control problems

Filed Jun 14, 2022 · Acceleration, Electrical · WA

Malfunction of the engine RPM governor, adaptive cruise control, or Electronic Throttle Control (ETC), or some combination of all of the above. On June 7-9, 2022, spontaneous high engine RPM occurred, which resulted in vehicle speeds that were above urban speed limits unless heavy braking pressure was applied. Additionally, on rural highways, the speed setting for the adaptive cruise control was exceeded without driver input. This also required manual breaking in order to control speed. During this situation, the “driver override “ message would appear although no accelerator pedal pressure was being applied. Additionally, the ETC warning light would randomly light up and then clear. When the vehicle was stopped and placed in park, the engine would rev to approximately 4000-5000 RPM. Especially in congested traffic conditions, this runaway engine RPM condition is a terrifying situation. This malfunction has occurred on this vehicle before, and to a similar extent. However, the Jeep dealer could find no underlying cause. The vehicle will also occasionally operate at a higher than normal RPM, but not to the extent described here. I do have an appointment with my local Jeep dealer for June 21. I will describe the issue with them in detail. My purpose for entering this report is to add my issue to any potential list of other Jeep owners who may have reported a similar issue.

Filed Dec 17, 2019 · Acceleration, Visibility · 39,000 miles · OH

Tl* the contact owns a 2011 jeep grand cherokee. The contact stated that the automatic windows raised up in only small intervals. The contact felt that this was a safety issue if a quick exit was required. While driving with the cruise control engaged, braking was required and the vehicle almost came to a complete stop. The failure nearly caused the contact's vehicle to be rear ended. New carlisle chrysler jeep dodge ram - tobey auto group (580 n main st, new carlisle, oh 45344) required the contact to leave the vehicle for a couple of days with no guarantee of being diagnosed. The contact did not leave the vehicle at the dealer and it was not repaired. The manufacturer was not contacted. The failure mileage was 39,000.

Filed Aug 1, 2018 · Acceleration, Brakes · 110,000 miles · NC

On multiple occasions in the last few days, the brakes have failed to respond (extreme force is needed to push down on the brake pedal), which delays braking time/distance significantly. This is happening specifically when trying to disengage from cruise control. This almost caused a crash. The car had a break booster recall in 2017 and this repair was completed at that time.

Filed Jul 12, 2018 · Acceleration · 106,540 miles · WI

Went to activate cruise control using the buttons on the steering wheel. Would not activate even after repeated attempts. Took it to dealer who exclaimed "recall" but after checking, he said the recall doesn't apply to my vehicle. Then found out other options do not work either. Plan on taking to a different dealer to have rechecked. This "defect happens whether moving or not.I became aware of this while on hwy 45 going from milwaukee to hartford, wis but showed it to the russ darrow dealer upon my return while stationary in his shop.

Filed May 29, 2018 · 136,800 miles · MN

When cruise control is on but breaking to slow down and turn in limited lighting (dawn, dusk, rain, snow) my jeep completely shuts off - power steering, breaks, everything. It has happened multiple times now and I have to coast to the shoulder and re-start - thank goodness I have not been hit (yet). No errors or warnings read.

Filed Aug 3, 2016 · Acceleration, Electrical · 72,000 miles · WI

Tl* the contact owns a 2011 jeep grand cherokee. The contact stated that the front driver and passenger side windows randomly lowered without warning. The contact had to use the electronic function to wind the windows up each time the failure occurred. The cruise control failed to engage and disengage, which caused the contact to have to turn off and restart the vehicle. The service engine light illuminated when the cruise control failure occurred several times. The vehicle was not inspected and diagnosed. The manufacturer was not notified. The VIN was not available. The approximate failure mileage was 72,000.

Filed May 5, 2015 · Steering · 42,389 miles · PA

While driving down the interstate, using cruise control, my car suddenly lost power steering and then all control including gas. Seemed to stall but then would come back on and off as I was "coasting" to a stop. Trying to make my way over two lanes so I could safely pull off the shoulder out of danger was next to impossible. I had to have my car towed 110 miles to dealer and jeep only covered first $100 so I ended up paying another $450 in towing costs. The dealer said my "serpentine belt" had been shredded and it had wrapped itself around everything in its path. Talking with numerous other garages and even other jeep certified mechanics, they all agree these belts should be replaced around the 85,000 mile mark even though they shouldn't show signs of wear until the 95,000 mile mark. Therefore I would like to know why the belt in my car, with only just under 43,000 miles on it, shredded so badly and almost caused me to drive straight into numerous cars and then into a guardrail and off the side of the interstate.

Filed Nov 24, 2014 · Acceleration, Fuel system · 33,000 miles · WA

Cruise control stopped working.

Filed Apr 18, 2013 · Acceleration, Electrical · 20,000 miles · WI

This vehicle is equipped with a adaptive speed sensor that keeps the vehicle at a preset distance from the vehicle in front with cruise control on. Vehicle is also equipped with a forward collision warning system which warns the driver to brake if it senses an approach of an object that is unsafe. The problems: the system will shut it self off, flashing a warning that the forward collision warning system is not working and shuts off the cruise control as well. System always resets itself after minutes, or longer and the cruise control will once again, work. Safety issue the system has the ability to brake on its own if it senses you are approaching a vehicle too fast with cruise control engaged. The problem is that a car may turn off in a separate lane to decelerate or be in a separate lane to accelerate and the sensor thinks the car is in front of it and starts braking severely cause it thinks it is in its path. This is a huge safety concern since any driver behind me would not be expecting me to brake when cars are not in my path. The vehicle has been to jeep dealer for numerous attempts to fix it. Right now chrysler is not doing anything about it. According to the repairing dealership, if chrysler did decide to replace the part, its on back order.

Filed Mar 31, 2011 · Electrical · 4,000 miles · NY

Hi, my name is [xxx]. On jan. 18, 2011 I purchased a 2011 jeep grand cherokee x package from grand prix jeep and suburu, for my daughter, for her first car. On march 12, I was stopped at a light, my foot on the brake, the car started to rev high and then was trying to accelerate forward, I thought the cruise control was on, I had no idea what the problem was, but it was so scary. I had to ride with my foot on the brake the whole way home. Engine light came on and so did the electronic throttle light, which looks like a lightening bolt. I brought the car to the dealer, spoke with ethan. I explained to them of the sudden acceleration problem. He said he would take a look at it and let me know the problem. I called on monday, no one looked at the car, stall. Tuesday, I called and spoke to ethan, he said he had no idea what was wrong with the car and he had to wait for chrysler to call him and let him know what to do, scary. Miraculously wednesday he said he replaced the gas pedal the sensor was bad, and the car was fixed. Still terrified from te first occurrence, I took the car home. Om march 24th, 2011 it was beginning to snow, I was stopped at the corner stop sign waiting to make a right turn and the car surged forward into the intersection skidding onto the sidewalk just missing a pedestrian and a utility pole. If it was my daughter driving, who is a new driver, I don't think she would have been so lucky as to miss the pedestrian or the pole. This time I called the dealer and told them I almost died in the car, due to the same problem, sudden acceleration, engine and throttle light on. They actually had the nerve to tell me to drive the car to the dealer for service. I declined and told them to come and get it. They sent a tow truck that day to pick up the car. I called , both the sales and service manager and told them that I almost died twice in this car and I do not want it back. They both assured me they would replace the car. Information redacted pursuant to the freedom of information