Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2018 Jeep Grand Cherokee owners, lightly cleaned up (personal details are redacted by NHTSA).
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 owns a 2018 Jeep Grand Cherokee. The contact received notification of NHTSA Campaign Number: 22V406000 (Fuel System, Diesel) however, the part to do the recall repair was unavailable. The contact stated while driving approximately 45 MPH, the vehicle started shaking and nearly stalled while ascending a hill. The contact stated that the failure was intermittent but had also occurred while stopped at a traffic light. The contact stated that the vehicle also hesitated while depressing the accelerator. The contact stated that she depressed the accelerator pedal with added force; however, the vehicle failed to immediately respond. The contact stated that after a while the vehicle responded and drove forward. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The failure mileage was approximately 35,000. …
The contact owns a 2018 Jeep Grand Cherokee. The contact stated while driving at unknown speeds, there was as abnormal humming noise detected. The contact received notification of NHTSA Campaign Number: 22V406000 (Fuel System, Diesel) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. The mileage at the time of failure was approximately 25,000. VIN tool confirms parts not available.
The contact owns a 2018 Jeep Grand Cherokee. The contact stated that while at the gas station and refueling the vehicle, the contact became aware that the pump nozzle was stopping as if the tank was full. The contact stated that fuel system warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed as a failure with the fuel tank. The contact was informed that the fuel tank needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHSTA Hotline to report the failure. The failure mileage was approximately 82,000.
The contact owns a 2018 Jeep Grand Cherokee. The contact stated that while driving at approximately 45 MPH, she observed a noise that resembled air escaping from the passenger side of the vehicle. The vehicle was taken to a dealer where it was diagnosed that the diesel particulate matter harness and exhaust manifold needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 39,000.
There are numerous safety issues with this vehicle. The most concerning is electrical/fuel/engine relating to the TIPM. The vehicle intermittently refuses to start. The integrated fuel pump relay in the TIPM fails. This has left my wife stranded in potentially dangerous areas. It has also died while the vehicle was in motion. In addition to the TIPM issues, the digitizer of the factory radio/navigation system has delaminated from the LCD screen. The safety issues this causes are multiple: random phone calls while driving (distracting), random radio station changes (again, distracting to a driver), and an inability to properly utilize navigation (potentially dangerous if it tries to change a route and indicates last-second turns). It also prevents the driver from calling someone if they are in need of help. …
Vehicle Information: 2018 Jeep Grand Cherokee Overland 3.0L V6 EcoDiesel 4x4Component Affected: Fuel/Propulsion System (High-Pressure Fuel Pump) Safety Incident Narrative: The vehicle previously underwent a mandatory manufacturer safety recall replacement for the Bosch CP4 High-Pressure Fuel Pump under FCA Safety Recall Z46 (NHTSA Campaign Number: 22V-406). At 111,948 miles, while operating the vehicle, the engine suffered a sudden, catastrophic mechanical failure accompanied by an immediate and total loss of engine oil pressure. This caused the engine to suddenly stall and lose all propulsion while in motion, creating an immediate and severe highway safety hazard to myself and surrounding traffic.The vehicle was towed to an authorized Jeep dealership under Repair Order #5823328. …
Hello, There is a few things going on with this vehicle, this is a 2018 Jeep Grand Cherokee with 27k miles. Uploading recalls on this vehicle. 1. It has a fuel leak, this is a vehicle that does not have a gas cap, it has been fully diagnosed by the dealer, they want to charge $900.00 to repair plus a $250.00 diagnostic fee. 2. Car would not move, stopped abruptly, had to turn car on and off while in traffic in order to get car going, almost causing an accident. 3. Car will tell you its about to hit another car when it's not and will turn on and off while driving, almost causing an accident. Dealer does not want to take a look at the car unless you pay them $250.00, want to keep the car for a week and does not want to provide a car rental while car is under their diagnostic phase. …
I bought a 2018 jeep grand Cherokee limited on July 1,2024. A week after owning the vehicle the jeep kept shutting off while driving on the interstate and the dash said " put in P and push to start" none of the hazard lights came on. It just automatically shut off in the middle of traffic multiple times and when put into park and tried to restart it would take several attempts. This is unsafe and I'm lucky I did not get into an accident since the vehicle is just turning off while I'm driving on a busy highway not to mention almost getting into an accident since I'm given no warning. I dropped off my jeep at the dealership and they have had it for two weeks stating they can not find any issues with the vehicle. This is frustrating and scary and do not even feel comfortable driving a the jeep that I owned for one week. …
On 5/72026@app 3:14pm after picking up one grandchild, and at a stop light on the way to p/u the other, the Jeep without warning just disengaged when the gas pedal was depressed, but to no avail. While frozen, the dashboard may have displayed something that was not noted in the panic to get the car moving! The internal panel was still illuminated, however the car would not move forwards although still in "Drive" with nothing having been switched, shifted or toggled except engagement of the brake to stop at the traffic light. The Jeep had to be placed in "Park", the starter button pressed, then pressed again to completely restart the vehicle. This was a potentially huge safety issue with many cars around us honking & rushing to pick up their own children, yet fortunately no one ran into us with our precious little rider!
Related recalls
Fuel system, diesel › Delivery › Fuel pump
Chrysler (FCA US, LLC) is recalling certain 2014-2020 Jeep Grand Cherokee, and 2014-2019 Ram 1500 vehicles equipped with 3.0L diesel engines. A high pressure fuel pump (HPFP) failure may introduce internal debris into the fuel system, potentially resulting in fuel starvation.
Remedy: Dealers will replace the HPFP, and inspect and replace, if necessary, additional fuel system components, free of charge. Interim notification letters informing owners of the safety risk were mailed July 21, 2022.
Fuel system, gasoline › Delivery › Hoses, lines/piping, and fittings
Chrysler (FCA US LLC) is recalling certain 2018 Jeep Grand Cherokee Trackhawk vehicles equipped with a 6.2L Supercharged Engine. The fuel line may separate.
Remedy: Chrysler will notify owners, and dealers will inspect and, as necessary, replace the fuel line, free of charge. The recall began February 23, 2018. Owners may contact Chrysler customer service at 1-800-853-1403.
NHTSA investigations
High pressure fuel pump failure
The Office of Defects Investigation (ODI) opened PE21-021 on October 14, 2021, to investigate incidents alleging a stall/loss of motive power as a result of high-pressure fuel pump failures in certain model year (MY) 2019-2020 Ram 2500, 3500, 4500, and 5500 heavy duty trucks equipped with 6.7L Cummins turbodiesel engines.
Fuel System complaints in other Grand Cherokee years
Frequently asked questions
How common are fuel system problems on the 2018 Jeep Grand Cherokee?
NHTSA has 63 complaints about the fuel & propulsion system of the 2018 Jeep Grand Cherokee, 7% of the model year's 855 complaints. The component named most often is delivery › fuel pump (1 mentions).
Is there a recall for 2018 Jeep Grand Cherokee fuel system problems?
Yes — NHTSA recall 22V-406 (fuel pump, Jun 9, 2022); NHTSA recall 18V-048 (hoses, lines/piping, and fittings, Jan 11, 2018). Recall repairs are free at authorized dealers.
At what mileage do 2018 Jeep Grand Cherokee fuel system problems start?
Half of the complaints with a recorded mileage happened before about 6,000 miles, and 70% before 25,000 miles.
Is it dangerous?
Owners linked 4 crashes, 1 fire and 2 injuries to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.