Jeep Grand Cherokee water leak problems

Filed Jul 23, 2026 · Engine · NY

2019 Jeep grand Cherokee, noticed to have leaking water pump, engine showed no signs of overheating. Water pump and thermostat changed due to a small fluctuating of temp gauge but never over the half way mark. Took it in for diagnostics, which, after reading many reviews of ongoing issues with head gaskets in jeeps, even after Jeep said they remedy it in 2016, I asked for diagnostics done on my radiator and head gaskets to only see it was in fact leaking head gaskets. There was no signs other than a leaking water pump and small fluctuation when the water pump started to leak, but engine never read that it was overheating nor did oil temp. Seems to be an ongoing issue with the 3.6L engines that Jeep is still selling and a lot of people are paying for major engine repairs, at such lower mileages.

Filed Mar 4, 2026 · Acceleration, Electrical · NY

Powertrain/engine performance (acceleration control): vehicle struggles to accelerate when pressing the gas. Transmission / drivetrain (gear engagement / shift control): vehicle drops from Reverse into Neutral without driver input (unintended gear disengagement). Water intrusion: ongoing water intrusion, power tailgate was already replaced due to water erosion, when it rains or snows water gets into vehicle resulting in a musty/moldy smell and driver side mat soaking wet. Yes — the vehicle is available for inspection upon request. The loss of acceleration / hesitation / jolting creates a risk of being unable to merge, cross intersections, or accelerate in traffic when needed. The unintended shift from Reverse into Neutral can cause loss of intended vehicle control/movement while reversing (driveway/parking lot risk), increasing collision risk with nearby vehicles, pedestrians, or property. Reverse → Neutral: Reported to dealer multiple times; confirmation varies by visit (intermittent concern) Stellantis Customer Retention states they spoke with the service manager and confirmed the repair history and dealer visits, not necessarily a physical engineer inspection.

Filed Dec 15, 2025 · Body · TX

I am submitting this complaint to report what I believe to be a manufacturing or design defect involving the sunroof of my Jeep Grand Cherokee. On or around December 1, 2025, I discovered a severe water leak originating from the sunroof area during normal rainfall. Water entered the vehicle interior without warning and caused substantial damage to the headliner, interior trim, and other interior components. The amount of water intrusion was significant and far beyond what would be expected from normal wear. The vehicle has only around 45,000 miles and is regularly maintained. The leak occurred without any visible damage to the sunroof glass and without prior indication of a problem. The sunroof was fully closed at the time. This suggests a defect related to the sunroof sealing system, drainage system, or overall design rather than misuse or external damage. This defect presents a serious safety concern. Water intrusion inside the vehicle creates the risk of: Electrical system damage or failure, Mold and health hazards, Impaired visibility due to water dripping near the windshield, Distraction to the driver while operating the vehicle. In heavy rain conditions, this defect could reasonably occur while driving, creating a dangerous situation for the driver and passengers. As a result of this defect, my vehicle sustained significant interior damage, requiring repairs. I believe this issue reflects a broader defect in the sunroof design or drainage system rather than an isolated incident. I am concerned that other Jeep Grand Cherokee owners may be experiencing similar failures. I am requesting that the federal safety agency investigate this issue for potential safety-related defects involving sunroof leakage in Jeep Grand Cherokee vehicles. The severity of the water intrusion and resulting damage indicates a defect that could pose a risk to vehicle safety and occupant well-being.

Filed Sep 30, 2025 · Engine, Fuel system · FL

My 2021 Jeep Grand Cherokee will not start / turn over and if it did the car will shut off. This has been happening for the past week or so. I took it to my local Jeep dealership today and they are stating that both the fuel pump and the water pump need to be replaced. They also stated that the fuel pump recall does not apply to my vin. In addition to my fuel pump needing to be replaced, my water pump has failed too. It is severely leaking water. My Jeep is only 4 years old with barely 70,000 mi and is experiencing severe safety issues. I cannot drive it as it could shut down unexpectedly while I am driving thereby posing a major safety risk.

Filed Jun 16, 2025 · Electrical · MN

I am writing to report a serious concern regarding my vehicle’s sunroof drainage system. Recently, a professional repair shop confirmed that the sunroof drain hose had become disconnected behind the firewall. As a result, water leaked into the interior of the vehicle and caused extensive corrosion to major electrical components, including the wiring harness and fuse box located behind the dashboard. The shop provided an estimate of approximately $5,000 to repair the damage, all directly related to water intrusion from this detached hose. At no point was I ever informed—by the manufacturer, dealership, or in the owner’s manual—that the sunroof drain hose required any type of regular maintenance or inspection. This lack of guidance left me completely unaware of any risk of disconnection or the potential for serious water damage as a result. I am also aware that there was a class-action lawsuit a few years ago related to defective sunroof drainage systems in certain vehicle models, which caused similar issues. Given the similarity in symptoms and consequences, I believe this may point to a broader pattern or design flaw that puts other vehicle owners at risk as well. I respectfully ask that the federal safety agency investigate this matter as a potential safety or design defect. I am happy to provide photos, shop documentation, or additional details upon request. Thank you for your time and consideration. Sincerely, [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 23, 2024 · Brakes, Engine · TX

The brake force will jump suddenly and fall back when the brake pedal is even maintained at a constant level while the vehicle is being braked to a stop or decelerating. This malfunctioning will lead to imprecise control of the distance to the front vehicle. Engine Wobbling when it is fully stopped with "D" gear engaged, especially when the transmission temperature comes up after a few hours of driving. It can be clearly felt that the entire vehicle is bouncing with the engine. Engine misfires when crawling after a cold start. Engine speed will fall suddenly and then back up. The vehicle will shake badly, which can cause improper reaction and improper operation of the vehicle speed. The passenger seat squeezes the center console on the right side and the plastic panel comes off, which exposes a sharp edge to the passenger's lower body. After the dealer's inspection, there is no obvious cause for this defect, passenger and center console are all in their places. The rear quarter window on the passenger side water leak. Metal rattling noise from the left front side (driver side) of the cabin when the vehicle is running on a bumpy road, especially in hot weather. Noise comes from the rear left suspension when the vehicle is decelerating.

Filed Feb 16, 2024 · NJ

I have had water leaking into the vehicle from the sunroof, down the driver side B pillar and filling the battery compartment under the driver seat and leaving the carpeting wet. I discovered this in early 2023 only because i placed my hand on the floor behind the driver seat and felt it was wet. In April of 2023 the Jeep dealer cleaned the sunroof drains but it kept leaking. In October of 2023 I took it back again and they said the sunroof was damaged from the manufacturer and it had to be replaced. I dropped of the vehicle on 12/22/2023 so they could install a new sunroof and picked it up on 1/3/2024. I then dropped it off again on 1/10/2024 as it was still leaking. I picked it up again on 1/23/2024 and they said the new sunroof is also damaged and needs to be replaced. As of 2/16/2024 the part has not arrived and water still come into the vehicle, soaking the carpet under the driver seat and driver side passenger floor, there is a wire harness that comes from the B pillar and towards the driver seat that is also wet and the batter compartment fills with water. Also since October the auto stop start feature which used to activate during every drive has not activated once, dealer keeps saying it is working as it should. If so why has it not activated in 4 months? Has the water intrusion caused this issue? Is the water intrusion going to cause mold, rust or electrical issues?

Filed Jan 27, 2024 · Engine · CA

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!

Filed Oct 12, 2023 · Body, Electrical · MI

My 2016 Jeep Grand Cherokee has a water leak in the rear compartment area. It is leaking next to the wiring which could cause a fire or electrical short.

Filed Aug 21, 2023 · Body, Electrical · MI

There is a water leak in the rear cargo compartment of the jeep. Searching on-line I saw that there were numerous complaints of water leaking which may cause an electrical fire. There was suppose to be a recall on 2014 - 2016 Jeeps but when I entered my VIN # it did not come up. I am afraid my vehicle will catch on fire with this water leaking.