What are the most common Jeep Grand Wagoneer problems?
According to Au7o's analysis of 748+ owner reports, the 2021-2021 Jeep Grand Wagoneer has 7 documented issues. The most frequently reported are: Transfer Case Encoder Motor Failure / 4WD Mode Stuck, Tailgate Power Cinch Latch Failure / Tailgate Won't Latch or Open, Rear Differential Pinion Bearing Noise / Whine. Of these, 3 are rated critical and should be addressed promptly.
Is the Jeep Grand Wagoneer reliable?
The 2021-2021 Jeep Grand Wagoneer has 7 known issues documented across 748+ owner reports. 3 issues are rated critical: Transfer Case Encoder Motor Failure / 4WD Mode Stuck and Tailgate Power Cinch Latch Failure / Tailgate Won't Latch or Open and Rear Differential Pinion Bearing Noise / Whine. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Jeep Grand Wagoneer problems?
Repair costs for known Jeep Grand Wagoneer issues range from $200 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Transfer Case Encoder Motor Failure / 4WD Mode Stuck, typically costs $650-$2,200 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2021-2023 Jeep Grand Wagoneer Cooling Fan Module Failure / Overheating Warning?
The electric cooling fan module on the Grand Wagoneer has been documented to fail, causing the dual electric radiator fans to run at reduced speed or stop entirely, resulting in engine coolant temperature spikes especially at low speeds and in traffic. The fan control module can… Repairs typically run $450-$1,600. Severity: critical.
What is the 2021-2024 Jeep Grand Wagoneer Transfer Case Encoder Motor Failure / 4WD Mode Stuck?
The Quadra-Trac transfer case encoder motor on Grand Wagoneer models fails to properly shift between 2WD, 4WD Auto, 4WD Low, and Neutral modes, leaving the vehicle stuck in a single drive mode or displaying a 'Service 4WD System' message. The BorgWarner transfer case encoder moto… Repairs typically run $650-$2,200. Severity: high.
What is the 2021-2024 Jeep Grand Wagoneer Tailgate Power Cinch Latch Failure / Tailgate Won't Latch or Open?
The Grand Wagoneer's power cinch tailgate latch mechanism, which uses an electric motor to fully close and seal the rear liftgate, has been reported to fail in both directions — either not cinching closed or not releasing when the open button is pressed. The electric cinch latch… Repairs typically run $350-$1,400. Severity: high.
What is the 2021-2024 Jeep Grand Wagoneer Rear Differential Pinion Bearing Noise / Whine?
Owners of Grand Wagoneer models equipped with the rear Dana 44 or Dana 60 axle have reported a pronounced whining or howling noise emanating from the rear differential, particularly at highway speeds between 55-75 mph. The pinion bearing preload can be inadequate from the factory… Repairs typically run $800-$3,500. Severity: high.
What is the 2021-2024 Jeep Grand Wagoneer Second-Row Power Seat Memory Malfunction / Seat Fails to Return to Position?
The second-row captain's chairs equipped with power adjustment and memory functions on Grand Wagoneer L and standard models have been reported to fail to return to memorized positions or become entirely non-operational. The seat position memory module loses stored settings after… Repairs typically run $200-$1,800. Severity: medium.
What is the 2021-2024 Jeep Grand Wagoneer Ambient Interior Lighting Flickering or Complete Failure?
The extensive 128-color ambient interior lighting system in the Grand Wagoneer, which includes door panel strips, footwell lighting, overhead console illumination, and dashboard accents, has been reported to flicker, display incorrect colors, or fail entirely on various zones. Th… Severity: low.
What is the 2021-2024 Jeep Grand Wagoneer Active Noise Cancellation (ANC) System Producing Drone or Buzz?
The Grand Wagoneer's active noise cancellation system, integrated into the McIntosh or base audio system through cabin microphones and the vehicle's speakers, has been reported to produce an audible low-frequency drone, buzz, or resonance at certain RPMs or vehicle speeds rather… Severity: low.
