2018 Jeep Grand Cherokee vehicle speed control problems

“I am reporting repeated drivetrain and transmission failures involving my 2018 Jeep Grand Cherokee SRT. The problems began with failure of the driveshaft carrier bearing, which was replaced with a brand-new component by an independent mechanic. The transfer case subsequently required replacement and was replaced with a brand-new unit by a reputable dealership. After these repairs, the original transmission mechanically failed at approximately 99,000 miles. I replaced it with a transmission from a 2021 model that had approximately 45,000 miles. That transmission then failed after only approximately 5,000 miles of use in my vehicle. I am now having another transmission installed, meaning my Jeep is receiving its third transmission. By the completion of these repairs, I will have spent more than $20,000 addressing drivetrain and transmission failures. I am concerned that an underlying drivetrain, transmission, electronic/control, or other vehicle-related condition may be contributing to these repeated failures. Replacing major drivetrain components has not resolved the problem, and I am concerned about the safety and reliability of the vehicle. I am also aware of…”

“Had the ABS Module repaired due to recall last week. Next, I have had 3 instances of the Accelerator sticking when shifting gears and, this never happened before this service.”

“My brake light light up, check engine light comes on and my Stability Control system does not work. My car won't electric start as the check engine light is illuminated. I took the vehicle to the dealership and they could not help me as there is no fix in place.”

“My ACC/FCW LIGHT IS ON, I HAVE NOT BEEN IN A CRASH. AND WHILE DRIVING AFTER THIS LIGHT CAME ON MY PASSENGER HEADREST AIRBAG BROKE APART. AND MY CRUISE CONTROL IS OUT, ALONG WITH TRACTION CONTROL. MY CAR JUST WENT HAYWIRE.”

“I purchased a 2018 Jeep Grand Cherokee on [XXX] unaware that the vehicle was subject to a federal safety recall and stop-sale order. The recall (NHTSA 24V-838 / Manufacturer 94B) was issued on November 7, 2024, for a defect in the ABS control module that may disable the Anti-lock Braking System (ABS), Electronic Stability Control (ESC), and cause unintended vehicle movement even while stationary. A stop-sale order (VIR 2024-11-14) was issued by Stellantis on November 14, 2024, prohibiting the sale or delivery of affected vehicles until repaired. Despite this, the dealership sold me the vehicle while the recall was still open and unrepaired. In the months following my purchase, I began experiencing issues with the Electronic Throttle Control (ETC). On June 15, 2025, I paid $770 out-of-pocket for ETC sensor repairs after a loss of throttle response. The vehicle has not yet been inspected by the manufacturer, but this defect may be linked to the broader electronic issues cited in the recall. No warning lights appeared in advance. I have been driving this vehicle daily without knowing it could malfunction in a way that puts myself and others at risk. I only learned…”

“The contact owns a 2018 Jeep Grand Cherokee. The contact stated while driving 35 MPH, several unknown warning lights illuminated, and the vehicle started hesitating and then stalled. The vehicle was towed to an independent mechanic, and the mechanic had the vehicle towed to the dealer to be diagnosed. The contact was informed that the throttle body needed to be replaced. The throttle body wiring was replaced, and the codes were reset. The vehicle was taken back to the dealer, and it was suggested that the vehicle needed to be retested. The vehicle was repaired again. The contact stated that after retrieving the vehicle from the dealer, several unknown warning lights illuminated, and the vehicle accelerated independently while depressing the brake pedal. The contact stated that the vehicle stalled while coming to a stop. The contact made a left turn into a parking lot and the vehicle independently accelerated. The contact stopped the vehicle and had the vehicle towed back to the dealer where the vehicle was being repaired. The manufacturer was notified of the failure and a case was opened. The approximate failure mileage was 25,000.”