2014 Jeep Grand Cherokee problems

ENGINE

This complaint is being filed regarding a failed and botched remedy of two federal safety recalls: the Crankshaft Position Sensor recall and Safety Recall Z46 (High-Pressure Fuel Pump) on my Jeep Grand Cherokee EcoDiesel.The vehicle was delivered to Kendall DCJR of Soldotna, AK for the recall services. The technician performed the recalls, but the high-pressure fuel pump failed immediately, resulting in systemic fuel leaking directly into the engine's crankcase oil pan. The fuel contamination thinned the motor oil, dropped oil pressure, caused the oil filter to collapse, and resulted in a catastrophically blown motor.Physical inspection confirms the entire fuel system is filled with destructive metal shavings and debris ("glitter") from the disintegrating pump, requiring a complete replacement of all fuel components and the engine assembly. The vehicle has been rendered entirely undrivable and has been sitting out of service at the authorized dealer for over 30 cumulative days. The manufacturer (Stellantis/Jeep) has failed to provide a safe, effective, and timely remedy for these safety recalls, and is refusing to issue a Corporate Rental Authorization (CRA) or alternative transportation while my vehicle remains grounded due to the safety defect's failure. This is a complete failure to execute a federal safety recall remedy in a reasonable timeframe.

NHTSA complaint #11758075 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

This complaint is being filed regarding a failed and botched remedy of two federal safety recalls: the Crankshaft Position Sensor recall and Safety Recall Z46 (High-Pressure Fuel Pump) on my Jeep Grand Cherokee EcoDiesel.The vehicle was delivered to Kendall DCJR of Soldotna, AK for the recall services. The technician performed the recalls, but the high-pressure fuel pump failed immediately, resulting in systemic fuel leaking directly into the engine's crankcase oil pan. The fuel contamination thinned the motor oil, dropped oil pressure, caused the oil filter to collapse, and resulted in a catastrophically blown motor.Physical inspection confirms the entire fuel system is filled with destructive metal shavings and debris ("glitter") from the disintegrating pump, requiring a complete replacement of all fuel components and the engine assembly. The vehicle has been rendered entirely undrivable and has been sitting out of service at the authorized dealer for over 30 cumulative days. The manufacturer (Stellantis/Jeep) has failed to provide a safe, effective, and timely remedy for these safety recalls, and is refusing to issue a Corporate Rental Authorization (CRA) or alternative transportation while my vehicle remains grounded due to the safety defect's failure. This is a complete failure to execute a federal safety recall remedy in a reasonable timeframe.

NHTSA complaint #11758075 — an unverified report by a vehicle owner.

SEATS

engine transmission motor mount backup camera fuel pump headlights dash cluster radio mirrors inside mirrors tailgate latch seat belt climate control engine light transmission shifter

NHTSA complaint #11755979 — an unverified report by a vehicle owner.

EXTERIOR LIGHTING

engine transmission motor mount backup camera fuel pump headlights dash cluster radio mirrors inside mirrors tailgate latch seat belt climate control engine light transmission shifter

NHTSA complaint #11755979 — an unverified report by a vehicle owner.

ENGINE

engine transmission motor mount backup camera fuel pump headlights dash cluster radio mirrors inside mirrors tailgate latch seat belt climate control engine light transmission shifter

NHTSA complaint #11755979 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I am the original owner / a loyal Jeep owner and have taken excellent care of the vehicle. Right now, the leather on my upper dashboard is completely bubbling, shrinking, and pulling away from the defroster vents. This is creating a serious visibility issue due to glare, and it prevents the defroster from blowing air effectively, which I feel is a major safety hazard. I am fully aware that the original warranty and the limited X81 extension program have technically expired. However, this issue began only a few months ago and because this is a well-documented manufacturing defect specific to the leather dashboards on 2011-2014 Overlands and Summits, I am requesting corporate goodwill assistance to cover the cost of the replacement. Can we please open a customer assistance case to review this issue.

NHTSA complaint #11754504 — an unverified report by a vehicle owner.

AIR BAGS

Active head restraint on driver seat deployed today for no reason. No collision, just deployed on its own.

NHTSA complaint #11753147 — an unverified report by a vehicle owner.

SEATS:FRONT ASSEMBLY:HEAD RESTRAINT

Active head restraint on driver seat deployed today for no reason. No collision, just deployed on its own.

NHTSA complaint #11753147 — an unverified report by a vehicle owner.

POWER TRAIN

The vehicle has a severe, life-threatening safety defect where it randomly drops into neutral while driving at speed, physically locks the shifter, and actively engages the electronic braking system on its own, stranding me in active traffic. I brought the vehicle to a certified Jeep dealership to resolve this exact symptom. They misdiagnosed the vehicle and charged me nearly $3,000 to replace the valve body and connectors. The dangerous symptom remains completely unchanged, meaning the vehicle is unsafe to operate and the manufacturer-certified repair facility has failed to remedy a critical safety defect. The issue hasn’t been fixed and it has been 5-6 months.

NHTSA complaint #11749415 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The vehicle has a severe, life-threatening safety defect where it randomly drops into neutral while driving at speed, physically locks the shifter, and actively engages the electronic braking system on its own, stranding me in active traffic. I brought the vehicle to a certified Jeep dealership to resolve this exact symptom. They misdiagnosed the vehicle and charged me nearly $3,000 to replace the valve body and connectors. The dangerous symptom remains completely unchanged, meaning the vehicle is unsafe to operate and the manufacturer-certified repair facility has failed to remedy a critical safety defect. The issue hasn’t been fixed and it has been 5-6 months.

NHTSA complaint #11749415 — an unverified report by a vehicle owner.

ENGINE

My 2014 Jeep Grand Cherokee suffered a total intake manifold failure directly resulting from a secondary breakdown of Safety Recall W79 (NHTSA Campaign 20V-699). Physical teardown at an independent facility exposed a 70% engine runner restriction and seized glow plugs due to volatile exhaust sulfur, creating an active fire risk. On July 9, 2026, LaFontaine Fenton was presented with clear mechanical photos and a continuous 2023 dealer repair loop under Customer ID [XXX], but formally refused to open a corporate STAR Case or dispatch flatbed transport to remedy this active safety defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11749279 — an unverified report by a vehicle owner.

SERVICE BRAKES

The vehicle has a severe, life-threatening safety defect where it randomly drops into neutral while driving at speed, physically locks the shifter, and actively engages the electronic braking system on its own, stranding me in active traffic. I brought the vehicle to a certified Jeep dealership to resolve this exact symptom. They misdiagnosed the vehicle and charged me nearly $3,000 to replace the valve body and connectors. The dangerous symptom remains completely unchanged, meaning the vehicle is unsafe to operate and the manufacturer-certified repair facility has failed to remedy a critical safety defect. The issue hasn’t been fixed and it has been 5-6 months.

NHTSA complaint #11749415 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

My 2014 Jeep Grand Cherokee suffered a total intake manifold failure directly resulting from a secondary breakdown of Safety Recall W79 (NHTSA Campaign 20V-699). Physical teardown at an independent facility exposed a 70% engine runner restriction and seized glow plugs due to volatile exhaust sulfur, creating an active fire risk. On July 9, 2026, LaFontaine Fenton was presented with clear mechanical photos and a continuous 2023 dealer repair loop under Customer ID [XXX], but formally refused to open a corporate STAR Case or dispatch flatbed transport to remedy this active safety defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11749279 — an unverified report by a vehicle owner.

SEATS

My passenger seat headrest popped open without any incident or warning and the clip is broken. Air bag deployed from head rest. There was a warranty in place that expired in 2024 but mine just happened while I was driving. It scared me and caused me to swerve. It’s a known issue. Why no recall for safety? Dealership wants to charge 1100 to fix a defect.

NHTSA complaint #11748818 — an unverified report by a vehicle owner.

SEATS:FRONT ASSEMBLY:HEAD RESTRAINT

My passenger seat headrest popped open without any incident or warning and the clip is broken. Air bag deployed from head rest. There was a warranty in place that expired in 2024 but mine just happened while I was driving. It scared me and caused me to swerve. It’s a known issue. Why no recall for safety? Dealership wants to charge 1100 to fix a defect.

NHTSA complaint #11748818 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

My 2014 Jeep Grand Cherokee suddenly developed a no-start condition after previously operating normally. The vehicle would crank but would not start. The battery and fuel injectors were checked and replaced as needed, but the problem persisted. Based on the symptoms and known issues affecting 2011-2014 Jeep Grand Cherokees, the internal fuel pump relay/TIPM is suspected. This defect has been the subject of previous safety recalls because it can cause engine stalling or a no-start condition. Although my vehicle is not currently included in an open recall, it is experiencing the same type of failure. A failure of the fuel pump relay can leave a vehicle stranded or cause the engine to stall unexpectedly, creating a serious safety hazard if it occurs while driving. I believe this issue should be investigated to determine whether additional vehicles should be covered by the recall.

NHTSA complaint #11748668 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

My 2014 Jeep Grand Cherokee suddenly developed a no-start condition after previously operating normally. The vehicle would crank but would not start. The battery and fuel injectors were checked and replaced as needed, but the problem persisted. Based on the symptoms and known issues affecting 2011-2014 Jeep Grand Cherokees, the internal fuel pump relay/TIPM is suspected. This defect has been the subject of previous safety recalls because it can cause engine stalling or a no-start condition. Although my vehicle is not currently included in an open recall, it is experiencing the same type of failure. A failure of the fuel pump relay can leave a vehicle stranded or cause the engine to stall unexpectedly, creating a serious safety hazard if it occurs while driving. I believe this issue should be investigated to determine whether additional vehicles should be covered by the recall.

NHTSA complaint #11748668 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

My Son just bought the car from a private party. On our way home the engine light and a lightning bolt icon illuminated on the dash, followed by the vehicle going into limp mode. We had the vehicle scanned for codes and it came back with P0336 (crankshaft position sensor performance). After much investigation online, we found out that this is a known issue with the crankshaft position sensor and, most importantly, the tone wheel on the back of the engine. We looked up recalls on the vehicle and found a safety recall had been issued. While some vehicles affected received replacement of the tone wheel and sensor, others just received a software update. This particular vehicle received the software update. The issue is that the magnetic material on the tone wheel delaminates from the tone wheel. This is a costly repair that should have been fixed correctly from the beginning, not just a software patch. It is a safety concern because it is dangerous when you are traveling at highway speeds and it goes into limp mode.

NHTSA complaint #11747770 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

My Son just bought the car from a private party. On our way home the engine light and a lightning bolt icon illuminated on the dash, followed by the vehicle going into limp mode. We had the vehicle scanned for codes and it came back with P0336 (crankshaft position sensor performance). After much investigation online, we found out that this is a known issue with the crankshaft position sensor and, most importantly, the tone wheel on the back of the engine. We looked up recalls on the vehicle and found a safety recall had been issued. While some vehicles affected received replacement of the tone wheel and sensor, others just received a software update. This particular vehicle received the software update. The issue is that the magnetic material on the tone wheel delaminates from the tone wheel. This is a costly repair that should have been fixed correctly from the beginning, not just a software patch. It is a safety concern because it is dangerous when you are traveling at highway speeds and it goes into limp mode.

NHTSA complaint #11747770 — an unverified report by a vehicle owner.

ENGINE

My Son just bought the car from a private party. On our way home the engine light and a lightning bolt icon illuminated on the dash, followed by the vehicle going into limp mode. We had the vehicle scanned for codes and it came back with P0336 (crankshaft position sensor performance). After much investigation online, we found out that this is a known issue with the crankshaft position sensor and, most importantly, the tone wheel on the back of the engine. We looked up recalls on the vehicle and found a safety recall had been issued. While some vehicles affected received replacement of the tone wheel and sensor, others just received a software update. This particular vehicle received the software update. The issue is that the magnetic material on the tone wheel delaminates from the tone wheel. This is a costly repair that should have been fixed correctly from the beginning, not just a software patch. It is a safety concern because it is dangerous when you are traveling at highway speeds and it goes into limp mode.

NHTSA complaint #11747770 — an unverified report by a vehicle owner.

SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION:SPRINGS/BAGS

The contact owns a 2014 Jeep Grand Cherokee. The contact stated that while driving at various speeds, the contact felt that the vehicle was misaligned. The vehicle was taken to a dealer, where the contact was informed that the rear brake shocks needed to be replaced. The vehicle was then taken to an independent mechanic, who informed the contact that no braking system failure was found; however, the rear-end air bag suspension had blown, causing the vehicle to lean on its right side. The contact was then referred back to the dealer, who scheduled a diagnosis appointment. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 106,000.

NHTSA complaint #11743661 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

While driving on the highway my Jeep GC shifts into neutral. Once I'm able to pull the car over, I'm not able to put the car into park or shut the car off. After a bit of time the car will start back up and will drive. It has been to the shop and they can not find what is the problem. there are no codes to be read. In reading various forums that is a common problem with the 3.2l engine in the Jeeps. It is dangerous as you lose ability to drive the car on teh highway, when it happens and hopefully you are close to the left lane so you can pull over without being hit.

NHTSA complaint #11740188 — an unverified report by a vehicle owner.

ENGINE

My 2014 Jeep Grand Cherokee Summit EcoDiesel (VIN: [XXX] ) experienced a catastrophic engine failure at approximately 116,000 miles while driving. The vehicle suddenly displayed an oil pressure warning, and I immediately shut the engine down to avoid further damage and potential safety risks. At the time I shut the engine off, the engine was not making catastrophic knocking noises and was not leaking oil heavily. The vehicle was towed to Astorg Dodge Chrysler Jeep in Parkersburg, WV. Before inspection, I specifically instructed dealership personnel not to start the engine because I suspected a serious oil-related issue and wanted to avoid causing additional damage. Despite these instructions, the dealership started and ran the engine anyway. After the dealership started the vehicle, the engine condition reportedly worsened significantly, including severe engine noises and much heavier oil leakage. I was later informed the vehicle would require complete engine replacement, with estimated repair costs ranging from approximately $10,000 to $24,000. At the time of failure, the vehicle was also subject to the unresolved Z46 High Pressure Fuel Pump (HPFP) recall, which had not yet been completed. I had previously been informed that recall parts were available and the repair would be scheduled. I am concerned that the unresolved recall and/or related fuel system issues may have contributed to this catastrophic engine failure. I am also concerned about the potential safety risk associated with sudden oil pressure loss and catastrophic engine damage while operating the vehicle. I am submitting this complaint so the failure and unresolved recall involvement are documented and reviewed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11739396 — an unverified report by a vehicle owner.