Windshield Rear View Mirror: How to Reattach

The National Highway Traffic Safety Administration (NHTSA) emphasizes the critical role of a properly functioning windshield rear view mirror for driver safety. A detached windshield rear view mirror not only obstructs the driver’s vision but also fails to provide necessary awareness of surrounding traffic. Automotive glass adhesives, such as those manufactured by Loctite, are often required for a secure reattachment, ensuring that the mirror remains firmly affixed to the windshield. If detached, the careful reattachment of your windshield rear view mirror is a task that, while often manageable by the vehicle owner, may require a visit to a qualified technician at an auto repair shop if complications arise.

Reattaching Your Windshield Rear View Mirror: A Comprehensive Guide

Reattaching a fallen windshield rear view mirror can seem daunting, but with the right tools and a methodical approach, it’s a manageable DIY project. This guide provides a step-by-step process, addressing common challenges and ensuring a secure, long-lasting bond.

Understanding the Mounting System

Before you start, it’s crucial to understand how your rear view mirror was originally attached. Most vehicles utilize one of two primary mounting methods:

• Button Mount: This is the most common system. A small metal button is permanently glued to the windshield, and the rear view mirror slides or clips onto this button.
• Direct Adhesive Mount: Less common in newer vehicles, this method involves directly gluing the rear view mirror bracket to the windshield.

Identifying the type of mount will inform the repair process and the necessary materials.

Essential Tools and Materials

Gathering the right tools beforehand will streamline the reattachment process. You’ll generally need:

• Rear View Mirror Adhesive Kit: Specifically designed for this purpose. These kits typically contain adhesive primer and adhesive. Avoid using generic glues, as they may not provide a strong or durable bond.
• Clean Cloth or Paper Towels: For cleaning surfaces.
• Razor Blade or Scraper: For removing old adhesive (if necessary).
• Masking Tape: To secure the mirror in place while the adhesive cures.
• Rubbing Alcohol: For degreasing surfaces.
• Marker or Grease Pencil: For marking the original mirror position (optional).
• Safety Glasses: To protect your eyes from debris.

Step-by-Step Reattachment Process (Button Mount)

The following steps are for the more common button mount style of mirror attachment:

1. Preparation is Key: Begin by thoroughly cleaning the windshield surface where the button will be reattached. Use a razor blade or scraper to carefully remove any residual adhesive. Be gentle to avoid scratching the glass.
2. Cleaning and Degreasing: Clean the area with rubbing alcohol and a clean cloth to remove any remaining grease, dirt, or contaminants. Allow the alcohol to completely evaporate before proceeding.
3. Mark the Original Position (Optional): If desired, use a marker or grease pencil to outline the original location of the button on the exterior of the windshield. This helps ensure proper mirror placement.
4. Applying the Primer: Most adhesive kits include a primer. Apply the primer to the cleaned area on the windshield and to the button itself, following the instructions included with your adhesive kit. The primer prepares the surfaces for a strong bond. Allow the primer to dry completely, as per the kit’s instructions (usually a few minutes).
5. Applying the Adhesive: Apply a small amount of adhesive to the center of the button. Avoid using excessive adhesive, as it can squeeze out and create a mess.
6. Attaching the Button: Carefully position the button onto the primed area on the windshield, aligning it with your marked position (if applicable). Press firmly for the recommended time specified in your adhesive kit’s instructions (typically 1-2 minutes).
7. Securing with Tape: Use masking tape to secure the button in place. Run strips of tape from the button to the windshield, creating a "web" that holds the button firmly against the glass.
8. Curing Time: Allow the adhesive to cure completely, as per the instructions on your adhesive kit. This is crucial for a strong bond. Avoid touching or moving the button during this time. Typically, curing takes at least 30 minutes, but longer (several hours or even overnight) is often recommended for maximum strength.
9. Reattaching the Mirror: Once the adhesive is fully cured, carefully remove the masking tape. Slide or clip the rear view mirror onto the button.
10. Testing the Bond: Gently test the mirror to ensure it is securely attached. Avoid applying excessive force.

Considerations for Direct Adhesive Mounts

If your vehicle uses a direct adhesive mount, the process is similar but lacks the button element. You’ll be directly gluing the mirror bracket to the windshield. Follow the same cleaning, priming, adhesive application, and curing steps, but attach the mirror bracket instead of a separate button.

Troubleshooting Common Issues

Issue	Possible Cause	Solution
Button/Mirror Falls Off	Insufficient cleaning/priming	Repeat cleaning, priming, and adhesive application steps meticulously.
Weak Bond	Inadequate curing time	Allow the adhesive to cure for the recommended time or longer.
Improper Adhesive	Using incorrect or expired adhesive	Use a rear view mirror adhesive kit specifically designed for this purpose.
Contaminated Surfaces	Dirt, oil, or grease on surfaces	Thoroughly clean and degrease surfaces with rubbing alcohol.

So, there you have it! Reattaching your windshield rear view mirror might seem daunting at first, but with the right tools and a little patience, you can get it done yourself and save some money. Just take your time, follow the steps carefully, and you’ll be seeing clearly in no time!