2018 Jeep Grand Cherokee Problems

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 experiencing electrical and starting problems. The alternator failed, the batteries went bad, and I had already paid for multiple diagnostics and repairs. At the time, we did not understand that these problems could potentially be leading to or connected with a PCM failure. I have spent approximately $800 on diagnostics and parts trying to determine and repair the cause of these issues. The most serious incident occurred when I was driving near a school and approaching a stop sign. The Jeep suddenly began losing power and would no longer operate normally. I did not receive an adequate warning that the vehicle was about to completely shut off. The dashboard/screen began flashing, electrical functions began going out, and the vehicle progressively lost power. I was able to slowly move the Jeep toward the right side of the road before it completely shut off. The Jeep then would not start again. This was extremely frightening because the vehicle lost power while I was operating it in an area where there were other vehicles and children nearby. I was concerned about my ability to safely get the vehicle off the roadway and about what could have happened if the Jeep had completely lost power in moving traffic or at a higher speed. The vehicle has since been diagnosed as having a PCM failure. I have already paid for diagnostics rather than simply bringing the vehicle in without any prior information about the problem. Despite this, the Jeep dealershiphas my vehicle now to determine if this is part of recall

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 recall.. the jeep was giving warning Saenz before I replaced the battery and alternator. After that. It did not give warning Saenz Anymore. It’s just completely Shut Off With no warning. Leaving me on the side of the road stranded twice. It will not start and it is reading these codes.

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 experiencing electrical and starting problems. The alternator failed, the batteries went bad, and I had already paid for multiple diagnostics and repairs. At the time, we did not understand that these problems could potentially be leading to or connected with a PCM failure. I have spent approximately $800 on diagnostics and parts trying to determine and repair the cause of these issues. The most serious incident occurred when I was driving near a school and approaching a stop sign. The Jeep suddenly began losing power and would no longer operate normally. I did not receive an adequate warning that the vehicle was about to completely shut off. The dashboard/screen began flashing, electrical functions began going out, and the vehicle progressively lost power. I was able to slowly move the Jeep toward the right side of the road before it completely shut off. The Jeep then would not start again. This was extremely frightening because the vehicle lost power while I was operating it in an area where there were other vehicles and children nearby. I was concerned about my ability to safely get the vehicle off the roadway and about what could have happened if the Jeep had completely lost power in moving traffic or at a higher speed. The vehicle has since been diagnosed as having a PCM failure. I have already paid for diagnostics rather than simply bringing the vehicle in without any prior information about the problem. Despite this, the Jeep dealershiphas my vehicle now to determine if this is part of recall

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 recall.. the jeep was giving warning Saenz before I replaced the battery and alternator. After that. It did not give warning Saenz Anymore. It’s just completely Shut Off With no warning. Leaving me on the side of the road stranded twice. It will not start and it is reading these codes.

system works intermittently--sometimes won't engage--other times suddenly cuts off when engaged

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 a similar situation involving my niece’s 2021 Dodge Durango R/T with approximately 60,000 miles. Her vehicle is also on its third transmission, with brand-new replacement transmissions being installed under warranty. I am requesting that NHTSA review these repeated failures and determine whether similar transmission or drivetrain problems have been reported and whether they may indicate a safety-related defect or broader pattern.

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 experiencing electrical and starting problems. The alternator failed, the batteries went bad, and I had already paid for multiple diagnostics and repairs. At the time, we did not understand that these problems could potentially be leading to or connected with a PCM failure. I have spent approximately $800 on diagnostics and parts trying to determine and repair the cause of these issues. The most serious incident occurred when I was driving near a school and approaching a stop sign. The Jeep suddenly began losing power and would no longer operate normally. I did not receive an adequate warning that the vehicle was about to completely shut off. The dashboard/screen began flashing, electrical functions began going out, and the vehicle progressively lost power. I was able to slowly move the Jeep toward the right side of the road before it completely shut off. The Jeep then would not start again. This was extremely frightening because the vehicle lost power while I was operating it in an area where there were other vehicles and children nearby. I was concerned about my ability to safely get the vehicle off the roadway and about what could have happened if the Jeep had completely lost power in moving traffic or at a higher speed. The vehicle has since been diagnosed as having a PCM failure. I have already paid for diagnostics rather than simply bringing the vehicle in without any prior information about the problem. Despite this, the Jeep dealershiphas my vehicle now to determine if this is part of recall

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 a similar situation involving my niece’s 2021 Dodge Durango R/T with approximately 60,000 miles. Her vehicle is also on its third transmission, with brand-new replacement transmissions being installed under warranty. I am requesting that NHTSA review these repeated failures and determine whether similar transmission or drivetrain problems have been reported and whether they may indicate a safety-related defect or broader pattern.

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. The manufacturer (Stellantis) and the dealership are currently refusing to authorize diagnostic teardown labor or a mechanical review of the internal safety recall componentry to investigate an acute internal fuel-pump shaft seal leak or residual micro-particle metallic debris from the prior campaign. An internal drive-shaft seal failure on this replacement pump architecture dumps raw diesel fuel directly into the engine's internal oil crankcase, causing severe oil dilution, an immediate collapse of structural oil pressure, and catastrophic engine seizure. The manufacturer is attempting to shift 100% of the financial burden ($25,000 engine replacement cost) onto the consumer, actively obstructing an essential safety failure investigation into a federally recalled component.

I own a 2018 Jeep Grand Cherokee EcoDiesel that has experienced repeated high-pressure fuel pump (HPFP) failures despite completion of the NHTSA HPFP safety recall. After the recall was performed, my vehicle developed the exact failure described in the recall. Metal contamination was found in the fuel system, requiring replacement of the HPFP and major fuel system components. Approximately 13,000 miles later, during routine fuel filter maintenance, I suspected the failure had returned. I asked the dealership to inspect the fuel filters for metal contamination, but they declined. I then removed and cut open the filters myself and documented visible metal shavings consistent with the recall failure. This is the second occurrence of metal contamination after the recall repair. I retained the filters, saved fuel samples, and documented everything with photos and video. I provided this evidence to the dealership and Stellantis. A STAR case was opened, but the Stellantis District Manager instructed the dealership not to perform any repairs because the vehicle has no check engine light and remains operable. The recall warns that HPFP deterioration can contaminate the fuel system and cause a sudden loss of engine power, increasing the risk of a crash. It also states this failure may occur without warning lights. My concern is that Stellantis is requiring complete pump failure before authorizing repairs, despite documented evidence that the recall failure condition has returned. I still possess the contaminated filters, fuel samples, photographs, video, and service records and will provide them upon request. I respectfully request that NHTSA investigate whether the recall remedy adequately corrects this defect and whether Stellantis' refusal to repair a vehicle exhibiting the same safety-related failure condition is appropriate.

I was backing up my trailer and placed the jeep in park and set emergency brake while on an incline. I got out of the jeep and the vehicle proceeded to roll away approximately 3 feet. I jumped back towards the drivers seat to press the brake to stop it from rolling down the hill

Recall on the hydraulic control unit/anti-lock brake system A brake light incorrectly resulting other drivers not receiving proper indication to stop or slow down which can cause a vehicle crash without prior warning. Call my local dealership and MOPAR and informed me that they still do not have the part to fix this recall. It has been more an an year and half without resolution. They have not inspected my vehicle as I did schedule an appointment but the dealership informed me that they is still no solution and would reach out. There has no warning lamps or messages that appears in my vehicle as of right now.

In approximately early to mid-August 2026, I was driving my 2018 Jeep Grand Cherokee at approximately 40 mph when the passenger-side Active Head Restraint (AHR) suddenly deployed without any collision, rear impact, or other event that should have caused it to deploy. There was no passenger in the seat at the time, so fortunately no one was struck or injured. The vehicle had approximately 55,179 miles at the time of the incident. Its current mileage is 55,279 miles. Following the unexpected deployment, the passenger-side head restraint developed a persistent rattling condition. I brought the vehicle to Naples Chrysler Dodge Jeep Ram for inspection. The dealer advised that the head restraint would need to be replaced and provided an estimate of approximately $1,001.95, including parts and labor. I subsequently contacted Jeep Customer Care regarding the problem. My case was assigned Case Number 97938645 and was initially characterized as a high-priority Repair Cost Assistance matter. I was later advised that Goodwill assistance was not available for my 2018 vehicle. I am submitting this complaint because the Active Head Restraint is a safety device, and it spontaneously deployed while the vehicle was traveling approximately 40 mph, without a collision or rear impact. I am concerned that an inadvertent deployment of this safety device could strike and injure an occupant or potentially create a dangerous distraction or loss-of-control situation if it occurs while the vehicle is moving. I understand that certain 2014–2018 Jeep Grand Cherokee vehicles have been subject to FCA warranty-related action concerning Active Head Restraint inadvertent deployment. I am not asserting that my particular VIN qualifies for that coverage; I am reporting the actual safety event and asking NHTSA to consider it in evaluating this potential safety issue.

See attached document for complaint.

I own a 2018 Jeep Grand Cherokee Limited. The driver's-side Active Head Restraint (AHR) suddenly deployed/opened without the vehicle being involved in a collision or rear impact. The head restraint separated/opened with significant force and will not remain in its normal position. I am not aware of any warning lights, warning messages, or other symptoms before the head restraint deployed. This creates a serious safety concern because the Active Head Restraint is positioned directly behind the driver's head and neck. An unexpected deployment while the vehicle is occupied or being driven could cause injury to the driver's head or neck and could also startle or distract the driver. The vehicle has not been involved in an accident that would have caused the Active Head Restraint to deploy. The failed head restraint/component is available for inspection. After researching the failure, I discovered that FCA/Stellantis has previously issued technical service and warranty information concerning inadvertent Active Head Restraint deployment, including TSB 23-018-20 and related AHR warranty-extension programs. I also learned that NHTSA investigated inadvertent Active Head Restraint deployments involving Jeep Grand Cherokee vehicles, including later model-year vehicles. I contacted FCA/Stellantis regarding the failure. I was initially referred to a Jeep dealership, and I am continuing to request that Stellantis review the failure and determine whether it falls under one of its Active Head Restraint warranty-extension programs.

I was traveling south on Lee Jackson hwy in Staunton Va at about 40 to 45 mph and was t-boned on the right passenger side with the impact just in front of the passenger door and front quarter panel. The damage ended up being all the way to the right rear passenger door. None of the air bags or side curtain airbags deployed.

See attached document for complaint.

Headlight beams do not function. Beam lights come on upon starting car then turn off moments after. Then I am driving done the street in complete darkness. I have taken the Jeep to the dealership of purchase ( Elmhurst Chrysler/jeep/dodge Elmhurst Illinois 630-834-8000 ) 4 times over several months. They have confirmed the problem. Two days ago they had me replaced the battery. There was NO messages or other warnings that the lights have failed.

The 2018 grand Cherokee has issues with mother board and electrical ghosts. 1st it was headlights and dome lights. they would flicker. i had to change the front lights 2x in a year. i thought this was odd. never did this with any car before. then I was driving home from work during rush hour and it started to rain. started the wipers front and back. the back wiper started and went halfway and got stuck. what happen? the front wipers went on for several revolutions (say 10-20 ) then stopped. started again. then stopped again. the rain intensity grew. Now the -wipers would only work when turned in opposite direction (the manual 1 pass move). this happened as i was trying to get home and stuck bumper to bumper on [XXX] . on this dangerous highway in middle of now a torrential downpour the front wipers now decided it wouldn't work AT ALL. i couldn't see anything and veered off to the shoulder thank god - waiting for rain to stop and then safely proceeded home. the next day the wipers worked. no check engine or anything. this goes on for a week or so with no issue. then out of nowhere the driver seat decides it has a mind of its own and pushes me all the way to the steering column. it wouldn't return when pushing the back button. i had to drive like that for my trip and then it magically went back upon restart. i take to dealer. pump motors bad on front and back. i say not sure your correct and explain. motor changed on front. not fixed. ok we think its the BCM. changed not fixed. finally the PDM was changed and wow it worked. 2 weeks at dealer and this shows that this issue with the control module is certainly risking peoples safety. i hope Jeep does the right thing and prevents a serious catastrophic event. read on the jeep electric issues and my vehicle had a previous "corrected" recall for Electrical Cruise Control. I dont think the fireware updates or software changes fixed all the bugs. be safe out there jeep INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FO

The contact owns a 2018 Jeep Grand Cherokee. The contact stated while driving at an undisclosed speed, the rear glass fractured without impact. The contact's minor children were seated in the rear seat when the failure occurred. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 57,000.

The front air springs, struts, and air suspension compressor failed. The dealer cannot get the right front air spring because it is backordered. It appears that 100% of these components fail creating demand that the manufacturer cannot keep up with. There should be a recall at this high failure rate on a component that makes the vehicle unsafe to drive per the warning on that dash.

They extended to far have to pull back manually Suspension creeks and sometimes lowers by itself , Radio screen is completely black cannot access any features.

Every time the vehicle proceeds over a speed bump or a dip in the road, it feels as if something is lose and banging in the steering and suspension of the vehicle. I have taken it to the dealer on numerous occasions, and they say they can never find anything wrong nor duplicate the issue. I’m concerned that at some point something may fail and I may lose control of the vehicle.

Multiple leaks found under the car and was brought in for emergency repair. One leak was the driveshaft, one was engine coolant and the other was the front steering column.

1-Rear driver-side Power Lift-gate actuator ball bolt snapped right off while rear gate is open. 2- It came right down on my head and caused severe bump and bleeding from a 250 pound rear door. I am 6ft 1 in, but if it is someone small it can cause sever injuries and possible death from the heavy door coming down on the person. 3-problem was looked at by my mechanic and they cannot fix issue as bolt broke off inside the thread area and no room to remove such bolt. They recommended I take it to a body shop to cut the area out in order to get the broken broke removed. 4-unknown 5- There was no signs of any failures at all.

The 2018 Jeep Grand Cheeroke Uconnect/Radio screen delaminates and causes the unit to make all kinds of error calls, GPS location changes and disabling events, without being touched. This is a serious safety concern and that Jeep or Stellantis should voluntarily recall these units for replacement. The driver's attention gets constantly divided to take care of these extra things while driving.

This car seat does not click into the base properly and I cannot loosen the straps properly. This form does not let me upload videos however, I do have video evidence of both malfunctions happening

The contact owns a 2018 Jeep Grand Cherokee. The contact stated that while driving at 10 MPH, the wheels locked up. The contact was unable to identify which wheels had locked up. The vehicle began spinning in circles, and the vehicle crashed into a guardrail. The ABS warning light was illuminated. The contact was able to continue to drive; the driver sustained injuries to the head and lower back, and medical attention was provided. The air bags did not deploy. There was no reported fire or police report filed. The contact received notification of NHTSA Campaign Number: 24V838000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The local dealer was not 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. VIN tool confirms parts not available. The approximate failure mileage was 98,000.

8/2023 one rear seat belt would no longer retract. The problem was reproduced by the service center and they replaced the rear seat belt. 10/2025 the same rear seat belt would no longer retract and 11/2025 the other rear seat belt would no longer retract. Brought into Jeep dealer and they verified there are no obstructions affecting the seat belt and they are no operating as intended. They replaced both rear seat belts in 12/2025.

The contact owns a 2018 Jeep Grand Cherokee. The contact stated that while sitting at a stoplight, there was a loud pop on the interior of the vehicle. After a visual inspection, the contact became aware that the front passenger’s side seat active head restraint had deployed unintendedly. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the active head restraint. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 70,000.

The contact owns a 2018 Jeep Grand Cherokee. The contact stated while coming to a stop, the vehicle lost motive power with the “Shift to Park” message displayed on the instrument panel. The vehicle was restarted; however, the failure recurred. The vehicle was taken to an independent mechanic where it was diagnosed that the PCM software had failed and needed to be updated. The vehicle was repaired; however, the failure recurred. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 69,000.

The contact owns a 2018 Jeep Grand Cherokee. The contact stated while starting the vehicle the PCM warning light illuminated. The dealer was contacted, and the dealer stated that the vehicle was previously serviced under NHTSA Campaign Number: 18V332000 (Electrical System, Vehicle Speed Control) and that the contact had to pay out of pocket for all future repairs. The manufacturer was contacted but provided no assistance. The failure mileage was 70,000. The contact stated that the vehicle was serviced at the dealer per the recall but is experiencing issues. A warning light keeps appearing even after the vehicle's powertrain control module was reprogrammed.

I am writing to formally report an alarming and dangerous pattern of tire failure involving the Cooper Adventurer HT 265/50R/20 tires (Product Number: 90000025718, DOT: U9UM 1HK) that were installed on my 2018 Jeep Grand Cherokee.