Method 1: The Key Cycle Method (for simple reminders)
This method often works for a basic "Service Soon" reminder that's not tied to tracked maintenance items. It's worth trying first:
1. Turn the ignition key to the "ON" position (but don't start the engine). Leave it in this position for a few seconds.
2. Turn the key to the "OFF" position.
3. Repeat steps 1 and 2 three times. The third time, leave the key in the "ON" position for a little longer (around 10 seconds).
4. Start the engine. The light *might* go out.
Method 2: Using a Scan Tool (for more sophisticated systems and specific maintenance intervals)
If the key cycle method doesn't work, the "Service Soon" light is probably linked to a maintenance schedule tracked by the vehicle's computer. You'll need an OBD-II scan tool (many are available relatively inexpensively at auto parts stores) to reset it properly:
1. Obtain an OBD-II scan tool. Make sure it's compatible with your 2004 Jeep Grand Cherokee.
2. Connect the scan tool to the OBD-II port. This is usually located under the dashboard, near the steering column.
3. Turn the ignition to the "ON" position.
4. Follow the scan tool's instructions to access the service reminder system. The exact steps will vary depending on the specific tool you are using. You'll likely need to navigate menus to find options related to maintenance intervals or service lights.
5. Reset the service reminder. Once you locate the appropriate function, the scan tool should allow you to reset the light.
Important Considerations:
* Actual Maintenance: Don't just reset the light without addressing the underlying reason for it appearing. Ignoring necessary maintenance can lead to more serious and expensive problems down the road. Check your owner's manual for recommended service intervals and ensure all needed maintenance has been performed.
* Type of Light: Make sure you're actually addressing the "Service Soon" light and not a different warning light indicating a genuine problem. If you have other warning lights illuminated, address those first.
* Owner's Manual: Your Jeep's owner's manual might have specific instructions on resetting the service light. Always consult it first.
If neither of these methods works, you might want to consult a mechanic to diagnose any potential issues. They can use professional diagnostic equipment to identify the root cause of the light and reset it correctly.
