Jeep Grand Cherokee loss of power problems

Filed Nov 5, 2026 · Electrical, Engine · ME

The 2023 Jeep Grand Cherokee 4xe Trailhawk has experienced repeated hybrid-system-related problems, including recurring check-engine warnings and multiple dealership repair visits. Most concerning, the vehicle previously shut down while being driven. The vehicle lost power while in operation, creating a serious safety concern. The dealership was made aware of this incident and performed repairs related to the shutdown. Since then, the vehicle has continued to experience hybrid-related problems and has required multiple additional repair visits. It is now back at the dealership in a no-drive condition due to another hybrid-system-related issue. A replacement part is required, but there is currently no estimated date for the part's arrival or when the vehicle will be repaired and returned to service. The vehicle has also been subject to multiple safety recalls, including recalls involving the high-voltage battery system. The repeated hybrid-system failures, previous shutdown while driving, and current inability to operate the vehicle raise significant concerns about the vehicle's safety, reliability, and continued operation. I am requesting that these issues be documented and reviewed for potential safety defects, particularly the loss of power while driving and the recurring hybrid-system failures.

Filed Nov 5, 2026 · Acceleration · NJ

acceleration capability while driving, particularly at highway speeds. The vehicle becomes unable to accelerate beyond approximately 60 mph, even when I press the accelerator further. The engine does not respond normally to additional accelerator input. The exact cause has not been identified. I suspect an issue involving the powertrain, hybrid propulsion system, or electronic throttle controls, but this has not been confirmed by a technician. Also, I did see on Carvana's website where I purchased the vehicle, that there was a recall for vehicle loss of power - 78C. The vehicle is available for inspection upon request. Plug-In charge also not working/unable to charge. This malfunction creates a potentially dangerous situation while driving on highways. When the vehicle unexpectedly loses the ability to accelerate, I cannot safely increase speed to merge into traffic, pass other vehicles, change lanes, or respond to changing traffic conditions. The problem occurs without warning, leaving me unable to predict when the vehicle will stop responding normally to the accelerator. I have reported the acceleration problem to AXIS Jeep, an authorized Jeep dealership in [XXX]. The dealership kept my vehicle for an extended period but advised that technicians were unable to duplicate the condition or identify any diagnostic trouble codes. As a result, the underlying cause has not been diagnosed or repaired. The vehicle has been inspected by AXIS Jeep, an authorized Jeep dealership. I also opened a case with Jeep/Stellantis Customer Care, case number XXX. The manufacturer has been informed of the recurring acceleration problem and the unsuccessful dealership evaluation. I requested a manufacturer buyback because of the ongoing safety concerns. Stellantis declined that request and offered further diagnostic attempts. There were no dashboard warning lights or error messages before or during the acceleration incidents. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 3, 2026 · Fuel system · UT

The vehicle lost all power in the middle of the road. We took it into the dealership. It was the high pressure fuel pump that was on recall in 2022 and went out again in 2026. Nobody will replace it due to the fact that though recall warranty has expired. But this is a big safety issue. I have metal debris all in my fuel system.

Filed Oct 26, 2026 · Electrical, Engine · PA

I am reporting repeated, sudden losses of motive power at highway speeds in my 2024 Jeep Grand Cherokee 4xe (PHEV). The vehicle's propulsion, electrical, and engine systems completely shut down without warning, causing the car to randomly stop while cruising at 60 mph on the highway, creating an immediate and severe crash risk. Despite the authorized dealership (David Auto of Glen Mills, PA) claiming that all outstanding safety recalls regarding drive power loss were resolved, the defect has actually worsened. This critical failure has occurred on at least three separate occasions recently: Late September 2026: Initial sudden power loss while cruising at 60 mph on the highway. [XXX]: Second instance of sudden power failure at 60 mph on the highway. [XXX]: Third instance of complete power loss at 60 mph on the highway. The vehicle was carrying four occupants at the time, significantly compounding the severe safety hazard. The manufacturer and authorized dealerships have failed to permanently rectify this dangerous defect, and the authorized recall remedies, stated complete, clearly have not or did not fulfill the obligations of safety and what was notified and communicated to me by Stelantis FCA (JEEP). As you may know, the ongoing, unresolved hazard is currently the subject of an active breach of warranty lawsuits and actively litigated. The vehicle is unsafe to operate on on highways due to these unpredictable hybrid powertrain shutdowns randomly at highway speeds, capping mph at 60 even if you are going 70+, and flooring the car in a passing lane or attempting to avoid other cars. It needs further investigation, and is a known issue apart of the hybrid systems failure and subsequent recalls yet no resolutions. ADDITIONALLY NO warning lights came on when this occurred. Video and 1st and 2nd person witnesses were taken as this is the 3rd time its occurred. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 22, 2026 · Engine, Transmission · FL

NEW SAFETY INCIDENTS – [XXX] – PREVIOUS COMPLAINT ON FILE I am reporting additional serious safety concerns involving my 2026 Jeep Grand Cherokee Limited Reserve, purchased new on [XXX]. Since purchasing this vehicle, I have experienced repeated bucking, jerking, rough engine operation, hesitation, loss of power, and stalling. On [XXX], the vehicle completely stalled. On [XXX], it nearly stalled while traveling through a busy intersection with my granddaughter in the vehicle. The vehicle was at Douglas Jeep for approximately 24 days, from September 23 through October 16, 2026. The dealership replaced all eight spark plugs after discovering excessive oil or unburned fuel contamination on the plugs. Despite these repairs, the dangerous drivability problems continue. During a recent test drive, Douglas Jeep General Manager John Grupe personally experienced the vehicle bucking and jerking at low speeds. On [XXX], I experienced additional concerning vehicle movement. After shifting into reverse while backing out of my driveway, the Jeep moved backward at approximately 4–5 mph without my foot pressing the accelerator. When shifting into drive, the vehicle also moved forward without accelerator input, reaching approximately 5 mph and maintaining that speed until I applied the brakes. I recorded video evidence of these incidents. The vehicle continues to buck and jerk severely at low speeds, including while maneuvering, turning, and driving through parking areas. I am particularly concerned about pedestrians, children, and other motorists. Despite multiple repair attempts and approximately 30 days out of service, these problems remain unresolved. I have repeatedly notified Stellantis and the dealership about the continuing safety concerns. I am requesting that the federal safety agency document these new incidents in connection with my previous safety complaint and evaluate whether these recurring drivability problems represent INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 22, 2026 · Acceleration, Transmission · NM

While driving approximately 65-70 mph on a highway, my 2026 Jeep Grand Cherokee 4x4 with approximately 15,000 miles suddenly jerked to the right and a loud knocking/clunking noise was heard from the drivetrain area. Immediately afterward, vehicle performance decreased significantly and the vehicle struggled to accelerate. The sudden loss of power at highway speed created a safety hazard due to surrounding traffic. No warning lights or messages appeared. The condition persists and the vehicle continues to have acceleration problems. This was very unsafe because either myself or other couldve been injured. I called jeep and they told me to drive it in to the Dodge dealership in Andrews TX, I want to emphasizes this is very unsafe, because it wont accelerate as it should. I have to drive down a road that oil tanker semis drive on as well.

Filed Oct 19, 2026 · Engine, Transmission · FL

"I am filing this supplemental report to provide critical new technical information regarding a 2026 Jeep Grand Cherokee Limited Reserve. This vehicle has experienced recurring engine instability, including rough idling, jerking, bucking, and loss of power. Most critically, on September 22, 2026, the vehicle nearly stalled while traveling 25–30 mph through a busy intersection, creating an immediate and severe safety hazard. Following this incident, an extensive investigation by Douglas Jeep, Stellantis STAR technical assistance, and a manufacturer engineer revealed oil contamination inside the engine cylinders and on the spark plugs. This is a recurring issue; the spark plugs were replaced prior to the vehicle's delivery in August 2026 and were replaced again in October 2026. Despite the involvement of a Stellantis engineer, the manufacturer has failed to provide a diagnosis of the root cause of the oil contamination or a permanent repair. The vehicle has spent approximately 30 cumulative days out of service since August 17, 2026. I am reporting this as a systemic mechanical failure that poses a significant risk of sudden power loss during operation."

Filed Oct 17, 2026 · Brakes, Electrical · FL

Suddden engine stalls/electrical shutdown while in motion, causing total loss of power steering and power Other incidents of while traveling at 65-70 mph on the interstate the vehicle suddenly suffered a power failure and dropped into a dangerously low gear at low speed. The engine wound up drastically, causing a severe spike in RPMs, but when pressing the gas pedal, the vehicle refused to move or increase speed.spedometer read 20 mph. I videoed this when it happened.

Filed Oct 16, 2026 · Electrical, Engine · AZ

While driving in active traffic at approximately 6 PM, our 2023 Jeep Grand Cherokee 4xe experienced a catastrophic, sudden loss of propulsion/driving power with no prior warning. The vehicle would not switch to gas, completely died, and refused to restart even in e-Save mode. A dashboard warning appeared: 'plug in vehicle for battery conditioning.' We were stranded in an active lane of travel and nearly rear-ended before securing police assistance (911 call) and a AAA tow. This directly mirrors known safety risks regarding sudden loss of power (Recall 78C / the federal safety agency 25V766) and high-voltage battery failure.

Filed Oct 6, 2026 · AR

At 29835 miles, my 2020 Jeep Grand Cherokee suffered a severe transmission slip/harsh jump. I took it to an authorized dealer on May 5,2026. The dealer charged $559, plus misc. charges of $12.00 and54.25 tax. They performed a transmission inspection, a quick learn to reset points, and noted VEH has an adaptive transmission. Vehicle needs to be driven to accommodate drivers pattern. The transmission is still actively slipping creating an extreme safety risk of sudden power loss in traffic and on highway.