2020 JEEP GRAND CHEROKEE Vehicle Speed Control Problems

15 complaints about Vehicle Speed Control

15
Complaints
6
Crashes
0
Fires
0
Deaths

High Severity Issue

This component has been associated with crashes, fires, or deaths.

This Problem Across All Years

All Vehicle Speed Control Complaints (15)

Aug 21, 2025 Crash

It was a clear day as I arrived at work. While pulling into a parking spot, the Jeep suddenly accelerated over a curb and into a tree. I was able to turn the wheel upon seeing the tree, which helped me avoid hitting other vehicles on the opposite side of the island. I had to depress the brakes multiple times before the vehicle finally stopped just short of another tree. During the incident, I was on a conference call. The attendees confirmed that there were no warning sounds from the vehicle—only the sound of the impact. Notably, the airbags did not deploy. The front driver-side area sustained extensive damage, causing the driver’s door to jam. Fortunately, I did not suffer any physical injuries. The vehicle was towed to an auto body repair shop. When connected to a scanner, no error codes were detected. Repairs took nearly five weeks. Although the front sensors were replaced, they still did not function properly. The shop consulted a technician who remoted in and advised them to replace all the sensors again and inspect the wiring. Although the vehicle has been repaired, I remain fearful of driving it. I’ve read similar reports on this board suggesting these issues may be related to the electrical system. I plan to contact the dealership to ask whether they have experience with such cases and if they can inspect the systems.

Jun 11, 2025

I was driving on the freeway and the car stuttered and then stopped, had to get towed home found out the aux battery was bad, replaced that and brake hub and sensor on driver tire but abs. And anti swerve light. Also no cruise control. Screen says Fcw unavailable service required, also 4wf service.

May 14, 2025 Crash

The contact owned a 2020 Jeep Grand Cherokee. The contact stated the vehicle had been driven for three hours and parked. Moments later, the vehicle was restarted and while driving approximately 35 MPH, the vehicle suddenly experienced unintended acceleration. While pressing the brake pedal, the vehicle did not stop and continued to accelerate forward, and the speed increased. While attempting to avoid driving into a river, the contact made a left turn and crashed into a tree. After crashing into the tree, the vehicle continued to accelerate forward and began to increase speed. The contact shifted the transmission shifter to the park position, and the vehicle was stopped. During the incident, no injuries were reported, a police report was taken the next morning, and the vehicle was towed to a nearby towing facility. The vehicle was later examined by an independent mechanic who diagnosed that the failure was caused by a computer malfunction. No further information was available. The manufacturer and local dealer were notified of the failure. The vehicle was destroyed. The failure mileage was 64,000.

Mileage: 64,000

Sep 20, 2023 Crash

The contact owns a 2020 Jeep Grand Cherokee. The contact stated that while driving forward into a parking space the brake pedal was hard when pressed and the vehicle suddenly experienced unintended acceleration and crashed to the side of a building. After the incident, it was discovered that the front brakes had seized and the vehicle was undrivable. The contact indicated that during the crash the collision avoidance feature did not active. The vehicle was towed to the local dealer. A police report was taken at the scene. No injuries were reported. The manufacturer was notified of the crash and an engineer was sent to examine the vehicle. No further information was available. The failure mileage was 35,800.

Mileage: 35,800

Mar 16, 2023 Crash

Hello dear….I suffer from a problem when I’m driving my truck and it’s as follows: when the gear is on D and my truck stopped ,and I stomp the gas pedal with a little force my truck keep going I can’t stopped for 40 seconds after which return to the normal driving state,this situation happened to me 5 times,I don’t know if the speed control cable can interfere with the speed control servo pulley and not allow the throttle to return to idle when disengaging the speed control (a stuck throttle could result)..,,

Sep 7, 2021

The vehicle starts jerking at a high rate of speed that become dangerous. Often times the vehicle will shut off on its own. Also the unconnect system goes out a lot. Another problem going wrong with the jeep is that the back window Always makes noise as if it would crack or something.

Aug 10, 2021

The contact owns a 2020 Jeep Grand Cherokee. The contact stated that after refueling and attempting to drive out of the service station, the vehicle independently accelerated to 60 mph. The contact was able to shift into neutral and drove the vehicle into a field and the vehicle returned to normal function. Additionally, the gear shifter was not operating as intended. The vehicle was towed to the dealer to be diagnosed. The mechanic located the wiring that failed and was able to return the vehicle to normal function. The contact also wanted to state that the dealer was unable to specify what caused the vehicle to independently accelerate. The gear shifter was repaired. The manufacturer was made aware of the failure. The failure mileage was 4,000.

Mileage: 4,000

Dec 14, 2020

PURCHASED NEW IN SEPTEMBER. CURRENTLY HAS 2100 MILES. CRUISE CONTROL "STICKS" AND FAILS TO DISENGAGE AT THE CONTROLS. WHEN THE ACCELERATE CONTROL IS DEPRESSED AND RELEASED, THE VEHICLE WILL CONTINUE TO ACCELERATE WITHOUT CAPPING THE INCREASE IN ACCELERATION UNTIL THE SYSTEM IS DISENGAGED WITH THE BRAKE PEDAL. VERY DANGEROUS! THIS SCENARIO OCCURS BOTH AT LOWER AND HIGHER SPEEDS OVER 55.

Mileage: 1,800

Oct 2, 2020

HOLDING THE "+" BUTTON DOWN FOR MORE THAN A SPLIT SECOND CAUSES THE SPEED TO QUICKLY INCREASE IN 5 MPH INCREMENTS. WHILE DRIVING ON THE INTERSTATE AT 65 MPH, I PRESSED THE "+" KEY AND WITHIN SECONDS THE SPEED CONTROL SETTING JUMPED TO 95 MPH. I HIT "CANCEL" AS FAST AS I COULD. IN JEEP'S 2017 AND 2019 MODELS THAT I OWNED THE SPEED INCREASED GRADUALLY WHEN THE "+" KEY WAS DEPRESSED. TH SELLING DEALERSHIP CHECKED OUT THE VEHICLE AND REPORTED TO ME THAT IT WAS WORKING AS DESIGNED. SEE ATTACHMENT.

Mileage: 400

Jun 16, 2020 Crash

WAS PULLING INTO SHOP ON NICE SUNNY DAY. I TURNED TAKING A RIGHT OFF ROAD AND SOME LADY SWERVED RIGHT OFF ROAD AND HIT ME DOING 50MPG. THIS CAUSED ME TO GO FORWARD IN VEHICLE AND ACCELERATE AT A HIGH SPEED. I THEN HIT A METAL CARPORT WHICH CRASHED ON MY ROOF. BUSTED SUNROOF, HIT SIDE OF BRICK WALL ON PASSENGER SIDE AND THEN WENT DOWN INTO A STEEP DITCH AND PARTIALLY BACK UP. NONE OF THE AIRBAGS DEPLOYED. I DID SEE ONE BLACK OVAL SHAPED AIRBAG BEHIND THE FRONT DRIVER TIRE AFTERWARDS. JEEP WAS TOTALED. FRONT END WAS DEMOLISHED LOOKED LIKE A BIG MOUTH. BOTH WHEELS WERE TURNED IN AND BUSTED. IT WAS CRUSHED.. SIDES WERE COMPLETELY DENTED IN. NOT SURE IF I ACCELERATED OR THE VEHICLE DID ON ITS OWN AS I HAVE NO RECOLLECTION. NOTIFIED JEEP THEY SENT SOMEONE OUT TO DO A REPORT AS I WAS INJURED. *TR

Mileage: 2,011

Mar 30, 2020

TL* THE CONTACT OWNS A 2020 JEEP GRAND CHEROKEE. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS WITH THE CRUISE CONTROL ACTIVATED, THE VEHICLE RAPIDLY ACCELERATED AFTER TAPPING THE PLUS SIGN BUTTON ON THE STEERING WHEEL WITHOUT WARNING. THE CONTACT DEPRESSED THE BRAKE PEDAL TO DEACTIVATE THE CRUISE CONTROL. DAN WELLE CHEVROLET BUICK, CHRYSLER DODGE JEEP RAM LOCATED AT (1505 MAIN ST S, SAUK CENTRE, MN 56378) AND JUETTNER MOTORS LOCATED AT (1900 BROADWAY ST, ALEXANDRIA, MN 56308) WERE CONTACTED AND THE CONTACT WAS INFORMED THAT THE CRUISE CONTROL FEATURE OPERATED AS INTENDED. THE MANUFACTURER WAS ALSO NOTIFIED ABOUT THE FAILURE AND REFERRED THE CONTACT TO THE LOCAL DEALER FOR ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 1,100.

Mileage: 1,100

Mar 30, 2020

TL* THE CONTACT OWNS A 2020 JEEP GRAND CHEROKEE. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS WITH THE CRUISE CONTROL ACTIVATED, THE VEHICLE RAPIDLY ACCELERATED AFTER TAPPING THE PLUS SIGN BUTTON ON THE STEERING WHEEL WITHOUT WARNING. THE CONTACT DEPRESSED THE BRAKE PEDAL TO DEACTIVATE THE CRUISE CONTROL. DAN WELLE CHEVROLET BUICK, CHRYSLER DODGE JEEP RAM LOCATED AT (1505 MAIN ST S, SAUK CENTRE, MN 56378) AND JUETTNER MOTORS LOCATED AT (1900 BROADWAY ST, ALEXANDRIA, MN 56308) WERE CONTACTED AND THE CONTACT WAS INFORMED THAT THE CRUISE CONTROL FEATURE OPERATED AS INTENDED. THE MANUFACTURER WAS ALSO NOTIFIED ABOUT THE FAILURE AND REFERRED THE CONTACT TO THE LOCAL DEALER FOR ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 1,100.

Mileage: 1,100

Jan 7, 2020

WITH MY FOOT COMPLETELY OFF THE ACCELERATOR, THE VEHICLE SPONTANEOUSLY ACCELERATES UNDER CERTAIN CONDITIONS. WHILE IN STANDARD OR SPORT MODE, IN SECOND GEAR GOING ABOUT 20MPH, THERE IS A REPRODUCIBLE RPM SURGE THAT CAUSES THE VEHICLE TO LUNGE FORWARD. THIS SOMEWHAT FEELS LIKE BEING REAR ENDED.

Mileage: 350

Jan 7, 2020

WHEN USING THE REAR PARK ASSIST, WITH MY FOOT COMPLETELY OFF THE ACCELERATOR, THE VEHICLE HAS SPONTANEOUSLY ACCELERATED WHILE GOING IN REVERSE, REQUIRING ME TO HARD BREAK TO AVOID COLLISION. THIS HAS HAPPENED MULTIPLE TIMES.

Mileage: 250

Dec 6, 2019 Crash

I WAS SLOWLY BACKING INTO A DRIVEWAY WHEN THE JEEP GRAND CHEROKEE SUDDENLY ACCELERATED ON ITS OWN. I REPEATEDLY HIT THE BRAKE PEDAL BUT THE JEEP WOULDN'T STOP; INSTEAD IT KEPT GOING FASTER. IT SMASHED INTO THE GARAGE DOOR AND THE BRICK WALL OF THE GARAGE, DEMOLISHING THEM. THE JEEP WAS BRAND NEW WITH ONLY 500 MILES DRIVEN, AND IT WAS EQUIPPED WITH A COMPLETE SAFETY PACKAGE THAT SHOULD HAVE AUTOMATICALLY STOPPED IT BEFORE AN IMPENDING IMPACT BUT IT DID NOT DO SO. THIS WAS AN EXTREMELY TERRIFYING EXPERIENCE AND IT FELT LIKE A NIGHTMARE.

Mileage: 500