The 2017 Jeep Grand Cherokee represents a peak in the model's history, blending refined luxury with serious off-road capability. Yet, even this accomplished machine is not immune to the specific set of problems that can arise with age and mileage. Owners often report issues that range from minor electronic glitches to significant mechanical failures, making proactive maintenance and awareness absolutely critical for preserving value.
Electrical System Malfunctions and Infotainment Quirks
One of the most frequently cited issues with the 2017 Grand Cherokee involves its complex electronic architecture. The central infotainment system, while feature-rich, can be prone to freezing, unresponsive touchscreens, and occasional crashes. These glitches are often related to the system's integration with the vehicle's numerous sensors and cameras, creating a frustrating user experience that disrupts navigation and audio control.
Beyond the main screen, owners have encountered a litany of smaller electrical gremlins. These include dashboard warning lights that illuminate without cause, failing body control modules that manage power windows and locks, and persistent issues with the rain-sensing wipers. The sheer number of modules communicating over the Controller Area Network (CAN bus) means a single fault can create a domino effect of confusing symptoms across the vehicle's electrical system.
Common Electrical Symptoms
Random reboots or lockups of the Uconnect infotainment system.
Intermittent failure of power windows, locks, or sunroof.
Dashboard warning lights (e.g., stability control, 4WD) activating without a clear problem.
Wipers failing to activate automatically in rainy conditions.
Transmission Troubles and Shifting Concerns
The 2017 model year primarily utilized the ZF 8-speed automatic transmission, a generally robust unit that paired well with the available V6 and diesel engines. However, some owners have reported noticeable transmission issues that detract from the otherwise smooth driving experience. These problems often manifest as harsh shifting, particularly during low-speed maneuvers such as parking or pulling away from a stop.
In more severe cases, drivers may experience a slipping sensation, where the engine revs but power isn't effectively transferred to the wheels. While often attributed to software calibration issues that a dealer update can resolve, persistent transmission problems can signal the need for more invasive repairs. Ignoring these signs can lead to premature wear and significantly shortened transmission life.
Suspension, Steering, and the Squeak Factor
The Grand Cherokee's air suspension system, while excellent for ride height adjustment and off-road articulation, is a known point of vulnerability on older models. Air springs, which replace traditional coil springs, can develop leaks over time. A failing air spring results in a noticeably uneven ride height, with one corner of the vehicle sagging lower than the others, and can trigger constant compressor operation.
Another widespread complaint, often the subject of online forums and jokes, is the mysterious "squeak." This high-pitched noise typically originates from the steering column or the suspension components, particularly around the control arm bushings. While not a critical safety issue, this persistent squeak can be incredibly annoying and is a common complaint among long-term owners. Mechanics often struggle to isolate the exact source, leading to a process of trial-and-error repairs involving lubrication and part replacement.
Engine and Cooling System Considerations
Power under the hood is generally strong, but the 3.6-liter Pentastar V6 and the 3.0-liter EcoDiesel V6 require diligent attention. The Pentastar is known for timing chain stretch, and if the tensioner fails, metal shavings can circulate in the oil, leading to catastrophic engine damage. Regular oil changes with the correct viscosity and type of oil are non-negotiable for preventing this costly failure.
