The rear wiper blade on a 2018 Jeep Grand Cherokee can be replaced by lifting the arm, releasing the old blade from the arm, and snapping a new blade into place before testing for proper contact with the glass.
What you’ll need
Gather these items before you begin to ensure you can complete the replacement smoothly.
- A replacement rear wiper blade compatible with the 2018 Jeep Grand Cherokee (check length, typically around 13 inches, and adapter type)
- Optional: an adapter kit if your replacement blade uses a different attachment style
- Clean cloth or wipe for the glass and blade surfaces
- Gloves to protect your hands during removal and installation
Verify blade length and connector type on the packaging or in your owner’s manual to ensure a proper fit for your model.
Step-by-step removal and installation
Follow these steps in order to safely remove the old blade and install the new one.
- Park the vehicle, turn off the ignition, and gently lift the rear wiper arm away from the tailgate glass until it stays in a raised position.
- Locate the blade’s attachment point on the wiper arm. Look for a small release tab or cap on the blade’s adapter.
- Press the release tab (and remove any protective cap if present) and slide the old blade off the wiper arm. If the blade uses a locking or bayonet-style adapter, you may need to rotate the blade slightly (usually 90 to 180 degrees) to release it.
- Prepare the new blade by removing any protective packaging or caps and inspecting the adapter.
- Attach the new blade to the wiper arm by aligning the adapter with the arm’s slot or hook and sliding it into place until you hear or feel a click indicating it’s securely seated.
- Gently lower the wiper arm back onto the glass, ensuring there is no side-to-side play and that the blade sits flush against the window.
- Test the installation by turning on the rear wiper (and rear washer if equipped) at low speed to verify smooth operation and a clean sweep across the glass.
If the blade doesn’t seat properly, remove it and re-seat, or consult the replacement blade’s instructions for your specific adapter type.
Additional tips
Choosing the right blade
Use a blade specifically designed for the Jeep Grand Cherokee’s rear window and confirm the correct length and adapter type. When in doubt, refer to the owner’s manual or the blade packaging for compatibility.
Maintenance and safety
Wipe the glass edge clean before reassembly to ensure a good seal and cleaning performance. Dispose of the old blade according to local regulations. Periodically inspect the wiper arm for any signs of wear or bending, and replace the arm if it shows damage or excessive play.
Summary
Replacing the rear wiper blade on a 2018 Jeep Grand Cherokee is a straightforward maintenance task that restores clear rear visibility. With the right blade, careful release and seating, and a quick test, you can complete the job in a short amount of time and return to safe driving in adverse weather.


