general problems of the 2018 Jeep Grand Cherokee - part 2

Dear national highway traffic safety administration, I'm writing to report a critical safety concern regarding the 2018 Jeep Grand Cherokee's water pump design. As an owner, I've experienced persistent coolant leaks, which I've found is a widespread issue affecting many others. This problem stems from a fundamental design flaw in the water pump, not typical wear and tear. The issue centers on a small "freeze plug" that leaks when the engine reaches operating temperature. This plug serves no apparent purpose and causes premature failures and coolant leaks across numerous vehicles. Key points: the leak occurs consistently when the engine is hot, indicating a design-related problem. This issue potentially leads to engine overheating and severe damage. It affects many vehicles, particularly those with the 3. 6l v6 engine. Extensive research on online forums confirms this is a common problem. . Read more...

The number 4 and 5 cylinders warped in my 3. 6 engine cross motors in louisville ky is repairing the engine.

The radio randomly changes every 5 seconds, the beeping will drive a person insane, blutooth will hang up or not allow me to answer or call out. The seat warmers turn on randomly as well and I’m unable to lower the temp or turn them off. A/c in the winter and heat the summer. Auto start doesn’t work cuz vehicle shuts itself off after 30s - 1 min and navigation is useless cuz of this electrical gremlin. How long before it accelerates by itself or cuts the engine while I’m on the freeway. Safety hazard.

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. I have read several complaints in the same issue and k won’t seems to be able to find what is causing this issue.

Car began to shake after looking under the hood found low coolant. After replacing the coolant it continued to run low only after 1 week. After second time replacing coolant engine light came on and it was taken to a mechanic who had codes come up as misfires. After replacing spark plugs and full tune up, engine light came back on. After taking it to a dealership they found a crack in the gasket at coolant passage. Car never over heated for the crack to have happened. Also seeing many other people with the same issue at the same mileage of 72k mile or less. I believe there is an issue with the head gasket.

Car dealer said that they already fixed the recalled issue. But we took car to the dealer also for car overheating in very short distances and the car only has about 67,300 miles. The dealer said that they "found stored dtc in pcm" p0304(cylinder #4 misfire). "there are combustion gases in cooling system. " they said the car needed cylinder head replacement and engine replacement quoting me $8001. 88 for repairs which I could not pay. The car has only been driven locally. We also suspect that this car may have been damaged by hurricane michael in florida in 2018 and damage may have not been reported. Car was bought in florida in approx. September 2018 by owner 1 who sold the car to owner 2 with only approx. 2500mi after hurricane michael (oct 9-10th). The car was sold to owner 2 in November 2018 in florida then brought to California in 2021 and sold to owner 3 who is making this report. Or car may have already presented mechanical issues that may not been reported. Car has only been driven locally.

My Jeep has stalled on me twice attempting to go through a stop sign at a busy intersection as soon as I slowed the Jeep down and then accelerated to go through the stop sign it stalled on a major hwy. No lights come on and the automatic shutoff button is turned off and for the past month the Jeep hasn’t started without either a jump or sitting a while after it was hooked to another vehicle.

The contact owns a 2018 Jeep Grand Cherokee. The contact stated that on several occasions while driving at various speeds, the vehicle lost motive power intermittently. Additionally, the contact observed a burning odor inside the cabin of the vehicle. The check engine warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed that the cam shaft, oil valve, and other unknown parts needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 100,000.

Jeep would not start. No warning lights. Towed to the mechanic. Mechanic said starter needed to be replaced. Once the starter was replaced the mechanic noted whitish smoke from exhaust when starting the Jeep. Further diagnosis he determined the Jeep needed a head gasket replacement. As other Jeep owners have stated this came with no warning. This is a safety issue in part because the vehicle is unable to start leaving the drivers potentially started in unsafe conditions. Jeep needs to post a recall for this issue. Please advise next steps?.

What component or system failed or malfunctioned, and is it available for inspection upon request? the engine block and head are warped. Radio station keeps jumping to random station when I'm not even touching it. Auto on/off light goes on intermittently. How was your safety or the safety of others put at risk? this could be a failure and engine lock up had I not taken it in when first troubles came about. Has the problem been reproduced or confirmed by a dealer or independent service center? yes and I'm told the one dealership has 3 three other vehicles the same make and model with the same issue! I've also read on forums that many other people have this affect theirs as well. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? no were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? check engine light went on a few times, diagnosis showed multiple misfires in the cylinder. White smoke from the exhaust and vehicle shook and acted like it was going to stall upon starting.

Intermittent extended crank on cold starts and developed a misfire in cylinder 3 and the developed a misfire and coolant leak in cylinder 1. The dealer told me it needs a new engine due to internal engine failure. Codes p0303 and p0300. Engine only has 62,000 on it.

The contact owns a 2018 Jeep Grand Cherokee. The contact stated that while parked they noticed an unusual liquid on the ground. The vehicle was taken to the dealer where it was diagnosed as having coolant leaking into the motor and needing to have the water pump replaced. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was approximately 82,000 .

Crankshaft positioning sensor I’m sure my Jeep falls into the recall I purchased it in March 24 and as soon as I drove off the lot with it the light came on got home scanned to find the cause and it’s the crankshaft sensor.

Misfiring. Can't seem to get the check engine light off. Vehicle is too new to be having these sorts of issues. Diagnostic reader says 3rd cylinder misfire.

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.

The alternator is pulling from the battery draining it and at 9. 5 volts the car will go into safety mode where it doesn’t turn off but it won’t drive neither which actually happened to me on Saturday in the middle of the street luckily no car hit mines and the police helped me move it out the road. I complained to carmax kearny mesa the previous Friday and instead of them putting me in a loaner car and towing the vehicle they scheduled me for an appointment Monday (today) at 9:30am and never held up their end and I’ve been carless ever since and they had my car for 6 months fixing this same problem I’m having today .

Stop start comes on and will turn the car off when stopped. I have to put the car in park to restart the car. The deal said that there is no recall for this issue.

Been in the shop & dealer multiple times! check engine light on for misfire in cylinder one; oil pressure sensor code. Oil case housing was replaced due to cracking! and oil pressure sensor replaced also. But still isn’t fixed and now leaks oil. Head gasket problems. Shop informed me I’ll need to replace loosing coolant going into my head gasket. Around 140k miles but problems occurred before! Jeep please explain why this is happening! a lot of money to fix it and problem after problem.

The head gasket gets blown with 50,000 miles for the 2018 grand Jeep cherokee high altitude. Went to Jeep dealership in downey and they said they knew it would be the head gasket they had other Jeeps in the shop with that same problem, but wanted to charge 5000 just to confirm. So then we went to a mechanic in los angeles and they had 5 other 2018 Jeeps in the shop with the same problem. The 2018 Jeep Grand Cherokee 3. 6l is having so many problems with the head gasket at such low miles this needs to be recalled! how is it a good supposedly reliable car is breaking down so early. This is a safety issuse it can cause a fire !!!!.

I have a 2018 Jeep Grand Cherokee and one day it just didn't start. I had it towed to the Jeep dealership and was told it was the starter. Once the job was done they service rwp said they will run a complete diagnostics on the Jeep and get back to me. I got a call a few a days later saying the Jeep had a blown head gasket, a leaking water pump and the coolant was leaking as well. They said the engine was a complete loss and to replace it and labor cost would be 14k. This Jeep only has 40k miles on it and those are really soft miles, my wife literally works 5 minutes from our home and it's here daily driver. How is this possible, it's just plain ridiculous. Reaching out to Jeep and got no help whatsoever. Never buy a Jeep!.

At 47,000k miles with all maintenance being done at correct intervals. From one day to the next, check engine light came on with error code p0303; code p0303 stands for “cylinder 3 misfire detected” which indicates that there have been numerous misfires in engine cylinder 3. After taking it to the Jeep dealership they told me its a cracked cylinder head. This was a fairly common issue with earlier year wk2 models, but continues to be a under-reported issue in later years.

The contact owns a 2018 Jeep Grand Cherokee. The contact received notification of NHTSA campaign number: 22v406000 (fuel system, diesel) and 23v411000 (engine and engine cooling) however, the parts to do the recall repairs were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

I have had 2 safety recalls open on my Jeep without remedy for over a year. Fca has failed to do anything putting me and my family at risk.

This vehicle will not move (intermitant problem) at times when the vehicle is placed in drive or reverse. The gear shift console and dash will flash and the vehicle is rendred useless. I have to turn off and restart the vehicle to resolve the problem. Temporary fix. It keeps happening. This vehicle has been in the shop 3 times (dealing with this issue for over a year). Noone knows what the problem is. No codes are thrown. Jeep has been contacted. Several forums I have looked at online state this problem with no resolution. The problem is someone is going to be killed or seriously injured. When it leaves me stranded in an intersection, which it did, I have a major problem. A resolution has to be found. Its not allowing me to upload video. I do have video of this happening which has been shown to the dealership and the adjuster of my extended warrenty company.

The contact owns a 2018 Jeep Grand Cherokee. The contact received recall notification of the NHTSA campaign number: 22v406000 (fuel system, diesel), the NHTSA campaign number: 23v411000 (engine and engine cooling) and NHTSA campaign number:20v699000 (engine and engine cooling) however, the parts to do the recall repair were not yet available. The undisclosed dealer was contacted and confirmed that the parts were not available for the recall remedy. 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. VIN tool confirms parts not available.

I am writing to report a concerning issue related to the water pump in my 2018 Jeep Grand Cherokee. Recently, I discovered a significant coolant leak originating from the water pump, which has raised concerns about the safety and reliability of my vehicle. I would like to bring this matter to your attention for investigation and potential action. While this issue may be isolated to my vehicle, I believe it's crucial to ensure the safety and reliability of all 2018 Jeep Grand Cherokee models. I have taken my vehicle to an auto repair shop for repairs, and they confirmed the water pump leak. Your prompt attention to this matter is greatly appreciated, and I hope that by reporting this issue, we can contribute to the overall safety and quality of vehicles on the road. Thank you for your commitment to ensuring the safety of drivers and passengers.

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.

I attempted several times to have the stellantis/Chrysler/Jeep 'z46 - high-pressure fuel pump failure' recall repair performed on my 2018 Jeep Grand Cherokee summit platinum 4x4 ecodiesel. The 'z46' recall was issued in Jun 2022. Yet over one year later each time I inquire about performing this recall repair the Jeep dealer advises that "there are no parts available to perform the recall repair". I submitted a complaint to stellantis/Chrysler/Jeep customer assistance and asked that the problem be escalated. I received no response or further follow up to that complaint submission. I need to sell the vehicle in the next 30 days but cannot sell the vehicle due to the open z46 recall. I am suffering economic injury as a result of the Jeep dealer's inability to perform the stellantis/Chrysler/Jeep 'z46' recall repair.

Oil filter adapter leaking.

Starting around February 23 after about 10 minutes into driving. The hot temperature lamp would show up . I pull over an it was always empty of coolant I had done that few times within one week. I also didn’t use air conditioning for a few weeks left . An it was ok for few weeks. Then I noticed smoke coming out back pipes . Send to first reipair shop. They found coolant in a combustion chamber they told me I should send to Jeep shop .

Jeep issued a recall for the high pressure fuel pump on our 2018 Grand Cherokee about a year ago and a redesigned fuel pump by bosch is still not available. I am unable to travel out of state for fear that the fuel pump will fail possibly causing a crash or leaving me stranded at my own expense. Why have a recall if the manufacturer can just ignore it and start discontinuing the product which Jeep has started to do at the beginning of 2023. Repeated attempts to get service from Jeep for the recall have resulted in the message no parts available. What is NHTSA doing about this recall?.

There is an electrical failure that causes the blinkers to stop working, shortly after noticing this issue the vehicle will fail to start after travelling to my destination. This has happened more than twice and there are no recalls shown for the "limited" version of this vehicle. The standard edition seems to have confirmed recalls for the same issues that the limited version is experiencing. A mechanic has described an electrical short circuit. I encourage looking into the different models of the 2018 Jeep Grand Cherokee in which you'll definitely find the same safety issues described online by many others. These repairs need to be addressed and repaired by the manufacturer. Thank you!.

The stop/start feature on my Jeep has just stopped working. The battery has been checked and rechecked and replaced. It doesn't work. The biggest problem now is the 8. 4 touchscreen display that malfunctions. The gps is connected to this along with the radio and backup camera. Other features include the phone, climate control, and other functions. The phone will randomly select contacts I am not trying to call, and the gps will randomly set locations I am not trying to go. The screen will jump from one application to another which is extremely distracting while driving. I've tried turning the screen off completely but this isn't helpful if I'm actually using my navigation. It's dangerous.

2018 Jeep Grand Cherokee with 55,575 miles was parked in a parking garage all day in brooklyn NY and when the vehicle was move to the front of the garage by parking attendants the engine started smoking and caught fire. There were no leaks, dashboard symbols or open recalls to cause the fire; additionally the car was linked to a iphone app carrx that can scan for any issue and no issue noted. This engine fire not only put all of the other vehicles in the park garage at risk of catching fire but the parking garage sits under a luxury apartment building putting the working and residents at risk. Additionally I commute between brooklyn and NJ 3x a week and cant imagine what would have happened if I was driving the vehicle over the brooklyn bridge, on the brooklyn queens express or in the holland tunnel during high commuter rush hour traffic. Car was checked out by a Jeep dealership who confirm fire was not caused by any leaks or electrical issue but did mentioned it seems to have started around the engine air cleaner. The current status of the issue has been an open investigation with Jeep corporate for going on the 3rd week with no communication or updates on status. The entire issue and fire from pulling into the garage to the when the car was moved to it smoking and catching fire is all documented on security video.

October 31, 2022 - check engine light came on. Autozone gave me the p0456 code - small leak in evap system. The check engine light went off a week later. Continued to come on/off for the next 2 months. I was able to finally get an appt on 1/9 and took it into san diego Jeep dealership on camino del rio s. They charged $500 for diagnostic even though I had the code already and replaced the purge valve & hose. On 1/14 my car engine would not start at all. On 1/15 my car engine started, I went to drive and within a block my car shut off on me and I coasted to the side of the road while it threw a bunch of different errors including electronic stability warning. I came to a stop and then all of my windshield wipers randomly started going off, my horn randomly started going off, and the lights in my car started flashing. I pressed the push start button to try to turn it all off. I then got the error meesage that my front left headlight was out, it now is, alos my left blinker now doesn't work properly. I tried to start the car again, no luck. I called a tow truck, the tow truck guy was able to get my engine to start. I explained that my car shut off and asked him to follow me for a little while. I got 2 blocks and came to an stop sign where I idled and my car engine shut off on me again. I had my car towed back to the dealership that did the work. On 1/16 they told me it would be $700 for an electrical diagnostic. I did not have any major problems or warnings before taking it to the dealership.