2022 Jeep Grand Wagoneer

I am submitting additional information regarding NHTSA complaint #11725438 involving my 2022 Jeep Grand Wagoneer Series III. The original complaint involved the front passenger seat lumbar support unexpectedly inflating to maximum firmness without any occupant input. The lumbar support became extremely hard and uncomfortable as though it had inflated to its highest setting on its own creating a large rock hard bulge in the passenger’s back. Since filing the original complaint, the same defect has now occurred in the driver’s seat. The driver’s lumbar support suddenly became rock hard without any adjustment being made to the seat controls. The change was sudden rather than gradual happening overnight. This defect has now occurred in both front seats of the vehicle, suggesting a possible system-wide issue rather than an isolated seat component failure. The unexpected inflation creates a driver distraction and can affect comfort and vehicle operation while driving. This complaint is intended to supplement and update NHTSA complaint #11725438. I request that this additional occurrence be added to the existing record. Many other Wagoneer owners have experienced this same issue as I see repeated complaints of this happening on the Wagoneer and Grand Wagoneer owner’s facebook pages. There is no way to remedy this situation on my own. The vehicle is not just uncomfortable, it is unsafe in this condition.

NHTSA ID

11743582

Incident

Jun 1, 2026

The contact owns a 2022 Jeep Grand Wagoneer. The contact stated that while driving at an undisclosed speed, the front passenger seat had inflated without a passenger seated in the seat. No warning light was illuminated. The front passenger seat failed to deflate. The vehicle was taken to the dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was approximately 80,500.

NHTSA ID

11731153

Incident

Apr 10, 2026

Mileage

80,500 mi

The upper trim on the rear passenger window came off unexpectedly, which could have caused a safety hazard if it hit another car or a person.

NHTSA ID

11728814

Incident

Feb 4, 2026

The front passenger seat lumbar/massage system malfunctioned and inflated without user input to maximum capacity. The lumbar air bladder became over-pressurized and created a large, hard, immovable bulge in the center of the seatback. The system will not properly deflate and remains in this condition. The failed component appears to be the lumbar/massage module and valve system, which is electronically controlled. The vehicle is available for inspection upon request. This condition creates a rigid protrusion directly behind the occupant’s spine. In the event of a crash, this would alter occupant positioning, concentrate force on the spine, and interfere with proper restraint function and airbag performance. This will increase the risk of injury to the occupant. The problem has been confirmed by Lander’s Jeep dealership in Little Rock, AR, which acknowledged the issue but advised that diagnosis and repair would be costly and would not be covered under my warranty or extended service contract provided by MOPAR. No warning lights or messages appeared prior to the failure. The issue occurred suddenly during normal use. Online research shows countless similar failures in 2022+ Jeep Grand Wagoneer vehicles, with consistent reports of lumbar/massage module or valve failures causing uncontrolled inflation. Some owners report repeat failures and electrical issues related to the seat module. Given the repeated nature of this failure across multiple vehicles and the potential safety implications, this issue should be investigated as a possible safety defect affecting occupant protection systems. I have multiple more examples of this from Facebook Wagoneer and Grand Wagoneer Owner groups, however I am limited to just 10 uploads.

NHTSA ID

11725438

Incident

May 1, 2025

Travelling with my young daughter on the Freeway at Freeway speeds at 9pm (nighttime). The entire vehicle just shut down. EVERYTHING - completely dark. Steering went out. Brakes went out. I had to get the car to basically drift to a shoulder and slow down gradually in a spot where we would be safely out of the way of traffic. Again no brakes or steering and completely dead. Hazzard lights would not work. I had to get the car towed and get my daughter and all of our stuff out of the car on the freeway at night in the complete dark. Scary stuff. It's an expensive car and 2022 is the first model year of the Grand Wagoneer. I suspect based on my experience with this car that this model year will have these types of problems going forward. The car has had electrical issues from day 1 and its unsurprising this happened. What is surprising is just how dangerous the situation was when you were in it. It was a shocking experience.

NHTSA ID

11719041

Incident

Feb 15, 2026

The contact owns a 2022 Jeep Grand Wagoneer. The contact stated that while driving at approximately 50 MPH, the ABS, the ESC, and the Parking Brake warnings illuminated. The contact stated that the brake pedal felt loose and travelled to the floorboard upon depression; however, the vehicle failed to respond. The contact shifted to neutral (N), and the vehicle decelerated. The contact stated that she was picked up by her husband, who then drove the vehicle to a dealer. The vehicle had not yet been diagnosed or repaired. The contact stated that the same failure had previously occurred while reversing (R) out of the driveway. The manufacturer was not informed of the failure. The failure mileage was approximately 61,000.

NHTSA ID

11707483

Incident

Dec 8, 2025

Mileage

61,000 mi

The contact owns a 2022 Jeep Grand Wagoneer. The contact stated that after entering the vehicle, it was discovered that the front passenger's side seat lumbar section had erroneously bulged outward making the front passenger’s seat extremely uncomfortable. Additionally, the contact stated while seated, the front passenger's head did not comfortably reach the headrest. The vehicle was taken to the local dealer, where it was determined that the front passenger’s seat lumbar module was faulty and needed to be replaced. The vehicle was repaired but the failure recurred with the front driver's side seat several months later. The front driver's side seat was not yet repaired. The manufacturer was not contacted regarding the failures. The failure mileage was 51,000.

NHTSA ID

11701401

Incident

Aug 18, 2025

Mileage

51,000 mi

Dear NHTSA, I am filing this complaint regarding a serious and ongoing turbocharger and engine problem in my 2022 Jeep Grand Wagoneer. Despite being one of Jeep’s flagship luxury vehicles, my SUV has experienced repeated engine warning lights, loss of power, and now complete turbo failure—all within 57,300 miles and under warranty. Soon after purchase (used, low mileage), the check engine light began appearing repeatedly. The dealership (Jeep Pearson, Broad Street, Richmond, VA) performed several repairs and software resets, but the problem always returned. Recently, I was informed that the turbocharger must be replaced—an alarming issue for such a premium vehicle. These failures have created safety risks including: Sudden loss of acceleration while driving on highways or merging. Hesitation or delayed throttle response, leading to unpredictable behavior in traffic. Concern about engine stalling or overheating from repeated malfunction. I have already escalated the issue to Jeep Brand (Stellantis) and requested the following: Vehicle replacement with a safe, defect-free model; Buyback and loan payoff to remove liability from a defective vehicle; or Two-year warranty extension covering all turbo and powertrain components. Despite multiple service visits and my written escalation, Jeep has not provided a permanent fix or assurance that the problem won’t return after repair. My warranty is nearing expiration, leaving me at risk of future costs caused by what appears to be a manufacturing defect. Through online research and owner discussions, I’ve found other Grand Wagoneer owners reporting similar turbo failures, power loss, and recurring check-engine issues, often before 60,000 miles. This suggests a potential systemic defect that could compromise safety across the 2022 Grand Wagoneer line. I respectfully ask NHTSA to Investigate turbo and powertrain reliability in 2022 Jeep Grand Wagoneers. Make/Model: 2022 Jeep Grand Wagoneer VIN: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.

NHTSA ID

11698484

Incident

Nov 10, 2024

Service Electric Power Steering (EPS) Message On Instrument Cluster. Rev B.

PUMP, Auxiliary Coolant Before replacing the Auxiliary Coolant Pump, please perform the following steps: 1) Key ON/OFF and let the after-run pump run for at least 20 minutes before moving on to step #2. 2) Inspect the pump connector area for presence of water. 3) Inspect the pump connector for corrosion. 4) Inspect the pump for coolant contamination as this can cause the pump to stall. 5) Inspect battery terminals for damage to rule out a battery drainage issue. 6) Ensure the PCM is up-to-date with the latest available flash. If correct repair is not performed then the claim or condition will be recovered by Warranty Operations.

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **U0405-00 - Invalid Data Received From Cruise Control Module. ● U0104-00 - Lost Communication With Cruise Control Module. NOTE: Vehicles setting DTCs U0405-00 and U0104-00 may experience an inability to be cleared.** ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. ● P06DD-00 - Engine Oil Pressure Control Circuit Stuck Off. ● P0604-00 - Internal Control Module Random Access Memory Ram Error. ● P060C-00 - Internal Control Module Main Processor Performance. This bulletin involves reprogramming the PCM with the latest available software.

PUMP, Auxiliary Coolant Before replacing the Auxiliary Coolant Pump, please perform the following steps: 1) Key ON/OFF and let the after-run pump run for at least 20 minutes before moving on to step #2. 2) Inspect the pump connector area for presence of water. 3) Inspect the pump connector for corrosion. 4) Inspect the pump for coolant contamination as this can cause the pump to stall. 5) Inspect battery terminals for damage to rule out a battery drainage issue. 6) Ensure the PCM is up-to-date with the latest available flash.

Service Electric Power Steering (EPS) Message On Instrument Cluster. Rev B.

PUMP, Auxiliary Coolant Before replacing the Auxiliary Coolant Pump, please perform the following steps: 1) Key ON/OFF and let the after-run pump run for at least 20 minutes before moving on to step #2. 2) Inspect the pump connector area for presence of water. 3) Inspect the pump connector for corrosion. 4) Inspect the pump for coolant contamination as this can cause the pump to stall. 5) Ensure the PCM is up-to-date with the latest available flash. 6) Inspect battery terminals for damage to rule out a battery drainage issue.