1. Disconnect the Battery (Optional but Recommended): This prevents accidental shorts or damage to your electrical system.
2. Lift the Wipers: Lift each wiper arm away from the windshield. You might need to gently pull and wiggle them. They usually have a slight spring tension holding them down.
3. Locate the Wiper Arm Nut: Underneath the wiper arm, you'll find a nut securing it to the wiper transmission. This nut is usually quite small and can be difficult to access. You might need a flashlight and potentially a small extension for your wrench.
4. Remove the Nut: Use the correct size wrench (usually a 10mm or 12mm; check your manual) to carefully loosen and remove the nut. Be sure to hold the wiper arm to prevent it from spinning freely while you unscrew the nut. Sometimes the nut is very tight. Use penetrating oil (like PB Blaster) if necessary. Allow it to soak for a while before attempting to remove it.
5. Remove the Wiper Arm: Once the nut is off, the wiper arm should come off relatively easily. If it's stuck, gently rock it back and forth while pulling. Avoid forceful pulling, as you could damage the wiper arm or the transmission.
6. Repeat for the Other Wiper Arm: Repeat steps 3-5 for the other wiper arm.
7. Clean and Inspect: Once the wiper arms are removed, this is a good opportunity to clean the wiper arms and the transmission shaft. Check for any damage or wear.
Important Considerations:
* Nut Size: The nut size can vary slightly depending on the specific trim level or modifications. Always double-check your manual or look closely at the nut before selecting a wrench.
* Stubborn Nuts: If the nut is extremely stubborn, use a penetrating oil and let it soak for a while before attempting removal again. Consider using a wrench with a good grip. Avoid using excessive force, which could strip the nut or damage the wiper arm.
* Wiper Arm Type: Some wiper arms have a small retaining clip in addition to the nut. If you encounter difficulty after removing the nut, look for a clip and disengage it as needed.
Reinstallation: Reverse these steps to re-install your wiper arms. Ensure the wiper arms are aligned correctly before tightening the nuts.
If you're uncomfortable performing this task yourself, it's always best to take your vehicle to a qualified mechanic. They have the right tools and expertise to do the job safely and efficiently.
