2018 Jeep Grand Cherokee engine problems

Related recalls

• Recall 23V411000Jun 8, 202380,629 vehicles
  ENGINE AND ENGINE COOLING

  Chrysler (FCA US, LLC) is recalling certain 2014-2019 Ram 1500 and 2014-2020 Jeep Grand Cherokee vehicles equipped with 3.0L Diesel engines. The crankshaft position sensor tone wheel may delaminate, causing the engine to lose its ability to synchronize the fuel injector pulses and cam shaft timing, possibly resulting in an engine stall.

  Risk: An engine stall can increase the risk of a crash.

  Remedy: Dealers will update the powertrain control module software to maintain vehicle propulsion, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed August 3, 2023. Some owner notification letters were mailed October 31, 2023. The remaining owner notification letters will be mailed at a future date, anticipated July 2024. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 66A. This recall is an expansion of recall 20V-475.

• Recall 20V699000Nov 12, 202028,884 vehicles
  ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

  Chrysler (FCA US LLC) is recalling certain 2014-2019 Jeep Grand Cherokee vehicles equipped with the 3.0L EcoDiesel engines. The Exhaust Gas Recirculation (EGR) cooler may crack and allow pre-heated vaporized coolant to enter the EGR system. This mixture may combust inside the intake manifold.

  Risk: Combustion in the intake manifold can increase the risk of a fire.

  Remedy: FCA US LLC will notify owners, and dealers will replace the EGR cooler, free of charge. Dealers will also inspect and, as necessary, replace the intake manifold. Parts are not currently available. Owners were mailed an interim notification on December 21, 2021. A second notification will be mailed when parts are available, currently expected to be around March 11, 2021. The recall began March 11, 2021. Owners may contact FCA US LLC customer service at 1-800-853-1403. FCA US LLC's number for this recall is W79.

What owners say

1. Filed Oct 2, 202696,685 miNYEngine

   The contact owns a 2018 Jeep Grand Cherokee. The contact stated that while taking the vehicle to a service center for an oil change, the oil filter plastic housing unexpectedly warped after the oil change. The contact stated that after the failure, smoke was coming from the vehicle, and an oil odor was coming from the vents when the heat was activated. The contact stated that after the vehicle was parked at the residence, there was a trail of oil coming from the vehicle. The…

   NHTSA complaint #11768504 · source
2. Filed Sep 25, 2026CAEngine

   Sudden loss of power while driving 75mph in the fast lane on [XXX] in [XXX]. My 2018 with the 3.0ltr Eco diesel engine was involved in a sever life-threatening event That caused my engine to fail while driving and I request immediate corporate escalation! On XXX while driving in the fast lane after just fueling up not more than 15-20min prior. my vehicle suffered, for no known reason, a catastrophic engine failure. There are no codes to be found (so said the dealer) "we cant…

   NHTSA complaint #11766927 · source
3. Filed Aug 31, 2026AZElectrical SystemEngineTransmission & Drivetrain

   Subject: 2018 Jeep Grand Cherokee – Sudden Loss of Power, PCM Failure, Electrical Failures, and Concern Regarding Recall-Related Symptoms I am filing this complaint because my 2018 Jeep Grand Cherokee experienced a sudden and unexpected loss of power while I was driving, and I am very concerned about the safety implications and the possible connection to the recall-related electrical problems associated with this vehicle. Before the final failure, my Jeep had been…

   NHTSA complaint #11761114 · source
4. Filed Aug 24, 2026AZElectrical SystemEngineTransmission & Drivetrain

   The Jeep was giving me a warning sign. It said stop slowly. Your jeep will shut off so I replaced the two batteries. As my Mechanic told me I replaced the alternator. I also replaced the ground wires. Nothing is making my jeep start. We ran the codes on the jeep and it came back as a U0100 code with the PCM system. No connection error. we looked up the recall information and a recall popped up for this 2018 jeep Grand Cherokee. I am being told that I am not affected by this…

   NHTSA complaint #11759288 · source
5. Filed Aug 18, 2026125,000 miMIEngine

   The contact owns a 2018 Jeep Grand Cherokee. The contact stated that since the vehicle was purchased, there was an abnormally strong coolant odor coming from the vehicle. The dealer was notified of the failure and informed the contact that the coolant reservoir was recently refilled, and the odor might be due to an overflow. The contact stated that the failure persisted, and the vehicle was taken to the dealer, where the water pump was replaced. The contact stated that the…

   NHTSA complaint #11757611 · source
6. Filed Aug 12, 2026CAEngineFuel, Hybrid & EV Propulsion

   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…

   NHTSA complaint #11756569 · source
7. Filed Jul 22, 2026TXEngine

   VEHICLE & PURCHASE DETAILS: 2018 Jeep Grand Cherokee (3.6L V6 Pentastar Engine). Purchased on/around April 27 in agreement with my credit union. INCIDENT & DEFECT DESCRIPTION: Upon taking delivery, the vehicle immediately displayed diagnostic warning codes. The selling dealer attempted diagnosis/repair for a week before directing me to take it to Bonham CDJR in Bonham, TX. Bonham CDJR cleared the codes and returned the vehicle. A couple of weeks later, while my wife was…

   NHTSA complaint #11752136 · source
8. Filed Jun 17, 2026WIEngine

   * Upon normal driving the vehicle suddenly began to run rough. At that point the engine light came on and began flashing. Yes, it is available for inspection * I was traveling at highway speeds with my two young son's in the vehicle, when out of nowhere we experienced a major loss in power, Forcing us to get to the far right lane and off on the next exit. * The problem has been Confirmed (Passenger Side intake camshaft has 5 out of 6 lobes significantly worn off. .119" of…

   NHTSA complaint #11744663 · source
9. Filed May 28, 2026NYEngine

   Cylinder Misfires OBD-II code P0303 Engine Overheats after changed thermometer Fuel in the coolant system Coolant leaking from exhaust

   NHTSA complaint #11740706 · source
10. Filed May 14, 2026CAEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

    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…

    NHTSA complaint #11737894 · source
11. Filed May 7, 2026PAEngine

    There are parts in the engine that malfunctioned and have caused fluids to leak into the engine. This is causing the engine to fail and requiring replacement. This issue started last year for me personally. The car has been to 2 mechanics and they both have diagnosed the issue , and to fix it requires full engine replacement . It’s a safety issue because the engine can lock up and stop the car.

    NHTSA complaint #11736347 · source
12. Filed May 5, 2026MAElectrical SystemEngineFuel, Hybrid & EV Propulsion

    I recently purchased a 2018 Jeep Grand Cherokee and began experiencing serious issues almost immediately after taking possession of the vehicle. The vehicle has stalled unexpectedly while driving on multiple occasions, including during active driving conditions. It also has difficulty starting and has shut off without warning. The vehicle has already undergone multiple repairs within a short period of time, including work related to the radiator, spark plugs, and ignition…

    NHTSA complaint #11735876 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology