Owners of the 20 maintenance reminder system in their Jeep Grand Cherokee resets the oil life monitor is a necessary skill to ensure the engine runs reliably. This procedure tells the vehicle when to perform the next change based on driving habits rather than a static calendar date. For the 2015 model year, the process requires accessing the settings menu through the Uconnect interface to restore the metric to 100 percent.
Preparing the Vehicle for the Reset
Before initiating the reset, the vehicle must be in a specific state to ensure the system accepts the command. The engine should be running, but the transmission must be in Park. Engaging the parking brake is recommended for safety, as the process involves navigating through multiple menus on the dashboard display. Completing these preparatory steps prevents the reset from being interrupted or failing to register.
Accessing the Oil Life Settings
The interface for the 2015 model is housed within the Uconnect system, which manages navigation, audio, and vehicle settings. To begin, drivers must press the "Menu" button on the steering wheel or center console to bring up the main screen. From there, selecting the "Settings" icon, often depicted as a gear, opens the primary configuration menu where maintenance indicators are managed.
Navigating the Menu Structure
Once inside the Settings menu, the interface is divided into sections for vehicle functions, audio preferences, and phone connectivity. Users need to scroll to the section labeled "Vehicle" or "Maintenance" to locate the oil life monitor. Selecting this option will display the current percentage of remaining life, which is usually the trigger for performing the reset.
Executing the Reset Procedure
With the oil life percentage visible, focus shifts to changing the value. There should be an option labeled "Reset" or "Reinitialize" directly on the screen. Pressing this button prompts the system to calculate a new schedule, and confirming the action sets the life back to 100 percent. It is critical to complete this specific sequence rather than turning the ignition off prematurely.
Verification and Final Checks
After the reset completes, the display should show 100 percent oil life, indicating the system is ready for fresh lubrication. Drivers should also verify that no warning lights appear on the dashboard once the engine is turned off and restarted. This confirms that the vehicle's computer has properly stored the new maintenance schedule.
Maintaining Accurate Mileage Tracking
Resetting the oil life is only effective if the underlying mileage tracking is accurate. Owners should ensure the odometer reflects the correct total miles driven, as the algorithm uses this data to determine the rate of degradation. If the mileage seems incorrect, a visit to a dealer for instrument cluster calibration might be necessary to preserve the integrity of the reminder system.
