Reinstalling your rear view mirror may seem like a simple task, but it’s crucial for both safety and driving efficiency. If your rear view mirror has fallen off, whether due to an impact, accidental bump, or wear over time, it’s important to fix it promptly. In this guide, we’ll walk you through everything you need to know to safely and effectively reinstall your rear view mirror, including tools needed, the best adhesive to use, step-by-step instructions, and tips to prevent it from falling off again. Whether you’re a first-time DIYer or a seasoned car owner, this guide has everything you need to restore full visibility and confidence behind the wheel.
Why Reinstalling Your Rear View Mirror is Important
The rear view mirror is one of the most essential safety components in your vehicle. It allows you to monitor traffic behind you without turning your head, which is vital for maintaining awareness during lane changes, braking, and reversing.
Failure to have a functional rear view mirror can lead to:
- Reduced situational awareness while driving
- Increased risk of collision during lane changes or merges
- Potential traffic citation
Most states require a functioning rear view mirror as part of vehicle safety inspections. Therefore, knowing how to reinstall it quickly and properly is not only a matter of convenience but also legal compliance.
Tools and Materials You’ll Need to Reinstall the Mirror
Reinstalling a rear view mirror is typically a do-it-yourself task that requires minimal tools and materials. Here’s a list of what you’ll need:
Basic Tools:
- Cleaning wipes or isopropyl alcohol
- Razor blade or plastic scraper (for removing old adhesive)
- Mixing stick (if using epoxy-style adhesive)
Adhesive Materials:
You’ll need a strong, automotive-grade adhesive to ensure the mirror stays in place under all driving conditions. We’ll discuss the best options later in the article.
Optional Items:
- Gloves (to protect your hands during adhesive application)
- Clamp or tape (to hold the mirror in place temporarily)
All of these tools can be found at your local auto parts store or online — most rear view mirror repair kits come with everything you need.
Choosing the Right Adhesive for Your Rear View Mirror
The type of adhesive you use is critical to the long-term performance of your reinstalled mirror. Not all glues are created equal, and using the wrong product can result in the mirror falling off again — or even damaging your windshield.
Types of Rear View Mirror Adhesives
There are a few common adhesive options available:
- Epoxy-based adhesives: These come in two-part formulas that must be mixed before application. They offer very strong bonding and are ideal for long-term installations.
- Urethane adhesives: Urethanes are also strong and flexible, making them a popular choice for automotive applications due to their ability to handle vibration and temperature changes.
- RTV (Room Temperature Vulcanizing) Silicone: This is not usually recommended for rear view mirrors as it can be less durable and may not adhere well over time.
Recommended Brands
Some trusted brands include:
| Brand | Adhesive Type | Approximate Drying Time | Best For |
|---|---|---|---|
| Permatex Rear View Mirror Adhesive | Epoxy | 15–30 minutes | Quick fixes and long-lasting bond |
| Loctite Epoxy Multi-Surface | Epoxy | 25–30 minutes | Flexible bond for moving parts |
| 3M Rear View Mirror Adhesive | Urethane | 1 hour | Professional-level strength and stability |
Make sure to read the instructions on the adhesive packaging to ensure compatibility with your mirror and windshield.
Step-by-Step Instructions to Reinstall a Rear View Mirror
Now that you’ve gathered your materials and chosen the right adhesive, it’s time to proceed with the actual installation.
Step 1: Remove the Old Mirror Bracket or Base
If the mirror base is still attached to the windshield, you’ll need to remove it to prepare for reinstallation.
How to Remove Old Adhesive:
- Use a plastic scraper or old credit card to gently lift the edge of the mirror base.
- Slide the scraper between the base and the windshield to separate it.
- Wipe away any leftover residue using isopropyl alcohol.
- Clean the windshield thoroughly to ensure a clean bonding surface.
Be careful not to scratch the glass or damage the dashboard while removing the old components.
Step 2: Clean the Windshield Surface
A clean surface is crucial for a strong bond. Use a glass cleaner and a lint-free cloth or cleaning wipes to remove dust, oils, and any remaining adhesive.
Tips for a Clean Windshield:
- Avoid using ammonia-based cleaners if using urethane adhesive.
- Ensure the windshield is dry before applying adhesive.
Step 3: Apply the Adhesive to the Mirror Base
Depending on the type of adhesive you’re using, mix it as directed. For epoxy or urethane, use the included mixing stick or dispenser to apply a small, even amount.
Application Notes:
- Apply enough to fill the base, but avoid over-applying to prevent excess squeeze-out.
- Work quickly, as many adhesives begin setting within a few minutes.
Step 4: Reinstall the Mirror onto the Windshield
Hold the mirror base firmly against the glass in the correct position. It’s helpful to align it with the original mounting spot.
Positioning Tips:
- Use a level or a mirror alignment guide (if available).
- Ensure the mirror is centered and provides full visibility behind the vehicle.
Step 5: Hold the Mirror in Place
Most adhesives need anywhere from 15 minutes to an hour before they begin to set. Holding the mirror in place ensures proper adhesion.
Securing the Mirror:
- Gently apply pressure for at least 5–10 minutes.
- If necessary, use a small clamp or tape to keep the mirror steady while drying.
- Avoid driving or bumping the mirror during the drying phase.
Wait the full recommended time (usually 2–24 hours) before making the mirror subject to stress.
Step 6: Test and Final Adjustments
After the adhesive has fully cured, test the mirror by gently trying to wiggle the base. If it feels secure, adjust the mirror angle for optimal visibility.
Visibility Tips:
- Ensure the mirror reflects a clear view of the road behind you.
- Adjust vertical and horizontal angles to avoid blind spots.
Common Mistakes to Avoid When Reinstalling Your Mirror
Even with the best preparation, mistakes can happen. Here’s a look at some common errors and how to avoid them.
Mistake 1: Skipping the Cleaning Step
Failing to clean the windshield properly is one of the biggest reasons why reinstalled mirrors fall off again. Dust, oils, or old adhesive residue can prevent proper bonding.
Mistake 2: Applying Adhesive Incorrectly
Using too little adhesive leads to a weak bond, while too much can result in messy application and may not cure properly. Always follow the manufacturer’s instructions.
Mistake 3: Not Allowing Enough Cure Time
Even if the mirror feels solid after 30 minutes, some adhesives require 24 hours to fully set. Driving or bumping the mirror too soon can damage the bond.
Mistake 4: Using the Wrong Adhesive
Avoid using hardware store glues or “multipurpose” adhesives. These are not formulated for vehicle use and may not withstand the vibrations and temperature changes your car encounters.
Tips to Keep Your Rear View Mirror Secure in the Future
Once you’ve successfully reinstalled your rear view mirror, you’ll want to make sure it stays in place. Here are a few preventative measures you can take.
Regular Maintenance Checks
- Periodically inspect the mirror base for looseness or cracks.
- Ensure the mirror area is free of debris, dust, and moisture.
Avoid Impact and Pressure
Be mindful when loading or unloading items from the dashboard. Avoid pushing or hitting the mirror base while passing through the front seat.
Use Heat and Sun Smartly
Extreme heat can soften adhesive, and sudden temperature changes can stress the bond. Parking in the shade or using a sunshade can help prolong mirror life, especially in warmer climates.
Consider a Mirror Clamp for Frequent Use
Some vehicles, particularly rental cars or older models, may benefit from a mirror clamp or bracket that offers extra support.
When to Consider Professional Help
While reinstalling a rear view mirror is often a simple DIY project, there are certain situations where professional assistance is recommended.
If the Mirror Base is Broken
If the mirror base or windshield mount is damaged, you may need a new base or even windshield repair. A mechanic or auto glass shop can help assess the damage and replace parts as needed.
Cracks or Damage to Windshield
If reinstalling the mirror reveals a crack in the windshield, especially near the mounting area, you should consult a professional glass repair shop immediately. Driving with a cracked windshield is unsafe and may violate traffic laws.
You’re Not Comfortable with DIY Repairs
If you’re inexperienced or unsure about using adhesives, take your car to a local auto glass shop. Most service centers can reinstall your mirror quickly and affordably.
Conclusion: Reinstall Your Rear View Mirror with Confidence
Reinstalling a rear view mirror that has fallen off may seem daunting, but with the right tools and method, it’s a manageable and important DIY project. By following the steps outlined above, you can restore full rearward visibility and ensure your driving remains both safe and legal. The key is taking the time to properly clean the mounting area, using the correct mirror adhesive, and allowing adequate drying and curing time.
Remember, a secure mirror not only helps you pass inspections, but also enhances your driving experience and keeps the road safer for everyone. With this detailed guide and a bit of patience, you’ll be back on the road with a reliable rear view mirror in no time. Happy driving and stay safe!
Final Tips Recap
- Use only automotive-grade adhesives for rear view mirror reinstallation.
- Clean the windshield thoroughly before applying new adhesive.
- Hold the mirror in place for at least 10–15 minutes after installation.
- Avoid driving or touching the mirror for several hours to let the adhesive set properly.
- If in doubt, seek professional help for windshield inspection or mirror replacement.
Can I reinstall my rear view mirror myself, or should I take it to a professional?
Yes, you can definitely reinstall your rear view mirror yourself without needing to visit a professional. Rear view mirror installation is a straightforward task that typically requires only basic tools and a bit of patience. Most modern vehicles use an adhesive mount that can be reattached without compromising the mirror’s stability or function, provided you follow the proper steps. With a detailed guide and the right mirror adhesive, even a beginner can complete this task in under an hour.
However, if you’re dealing with a mirror that has integrated electronics—such as a compass, automatic dimming, or lane departure warning systems—you may need to take additional steps or seek professional assistance. These advanced systems can sometimes require recalibration or wiring checks to ensure the mirror functions properly after reinstallation. It’s also wise to consider a mechanic’s help if you’re unsure about the type of adhesive to use, or if the mirror base doesn’t mount securely on your own. Safety is important, so if there’s any doubt about the mirror’s stability, having it checked by a professional is a good idea.
What tools and materials do I need to reinstall a rear view mirror?
To successfully reinstall your rear view mirror, you’ll need a few essential tools and materials. First and foremost, you’ll require a high-quality rear view mirror adhesive kit. These kits typically include an adhesive adhesive, an activator, and an applicator. Additionally, you’ll need rubbing alcohol and a clean cloth or paper towels to properly clean the mounting surface on the windshield and mirror base. A small brush or scraper may also be useful for removing any old adhesive residue.
Beyond the adhesive kit and cleaning supplies, you might also need a pair of gloves to keep your hands clean and protect your skin from the chemicals in the adhesive. A screwdriver is usually unnecessary unless your vehicle uses a screw-based mounting system, which is less common in modern cars. Some adhesive kits come with a mounting bracket or alignment tools to help you position the mirror correctly. Having all these supplies on hand before beginning ensures the process goes smoothly and your mirror is reinstalled securely and safely.
How long does it take to reinstall a rear view mirror?
Reinstalling a rear view mirror typically takes between 30 minutes to one hour, depending on the complexity of your vehicle’s mirror system and your familiarity with the process. If the mirror has only the standard mounting bracket and uses adhesive to secure it to the windshield, the actual installation and positioning can be done in just a few minutes. Most of the time required is for the preparation—such as cleaning the windshield and mirror base—and allowing the adhesive to set properly before driving.
After applying the adhesive, it’s important to adhere to the manufacturer’s drying and curing time. The mirror should remain undisturbed for at least one hour to allow the adhesive to set, though full curing may take up to 24 hours. You should avoid driving the vehicle during this time if possible, especially on bumpy roads, to ensure the mirror remains in place and bonds correctly. Planning the reinstallation in the evening or when you won’t need the car for a while gives it enough time to fully cure before being used.
What type of adhesive should I use for reinstalling my rear view mirror?
The best adhesive to use when reinstalling a rear view mirror is a specially formulated automotive-grade rear view mirror adhesive. These adhesives are designed to create a strong, durable bond between the glass windshield and the mirror base while remaining heat and moisture resistant. You can find mirror-specific adhesives at most auto parts stores, usually sold in kits that include both an adhesive and an activator to ensure proper bonding and fast setting time.
Using the right adhesive is crucial—avoid using household or generic adhesives such as epoxy or super glue, as these may not hold under heat and vibration and could lead to the mirror detaching unexpectedly. Automotive mirror adhesives are designed to allow for proper alignment and positioning even after application, which helps avoid mistakes. Always follow the instructions provided with the adhesive kit, including recommended drying and curing times, to ensure the mirror is securely mounted and safe for use.
Can I reuse the original mirror base when reinstalling the rear view mirror?
In most cases, yes, you can reuse the original mirror base when reinstalling your rear view mirror, provided it’s not damaged or cracked. Many vehicles have a permanent base mounted on the windshield that stays in place even if the mirror detaches. This base usually remains secure and only needs to be cleaned before applying new adhesive. This can simplify the process, as you won’t need to reposition the entire assembly or worry about missing mounting points.
However, if the original base has come off with the mirror, or if it appears worn or compromised, it’s best to replace it with a new base included in your mirror adhesive kit or from a dealer. Trying to reuse a damaged or warped base can result in a weak connection between the mirror and windshield, leading to the mirror loosening again. If you’re unsure whether the base is still viable, check for signs of wear or if it doesn’t sit flat against the windshield. Using a new base ensures better adhesion and a more stable, long-lasting mirror installation.
Is it legal to drive without a rear view mirror temporarily during the reinstallation period?
No, driving without a rear view mirror is generally not legal and can pose a safety hazard. Most jurisdictions require vehicles to have at least one functioning rear view mirror that provides a clear view of the road behind the vehicle. Driving without it—even temporarily—can result in a traffic violation, a fine, or a failed vehicle inspection. Additionally, lacking a rear view mirror significantly reduces your situational awareness and ability to make safe lane changes or stop suddenly.
If your rear view mirror has come off and you’re reattaching it, it’s best to avoid driving the vehicle until it’s fully reinstalled and secure. This way, you comply with road safety laws and avoid potential risks to yourself and others. If absolutely necessary, such as in an emergency, some temporary alternatives like clip-on mirrors or magnetic mirrors can be used to maintain visibility until a permanent fix is made. Even so, be sure to check your area’s specific laws, and always prioritize restoring a proper rear view mirror as soon as possible.
How do I ensure the rear view mirror is aligned correctly after reinstallation?
Proper alignment of the rear view mirror is essential for safe visibility and driving comfort. After applying the adhesive and temporarily securing the mirror mount, take a moment to adjust the mirror so that it provides a clear, centered view of the area directly behind your vehicle. Sit in the driver’s seat and adjust the mirror angle to cover the entire rear window without showing the edges of your car. It’s also helpful to have someone else sit in the driver’s seat to assist with alignment if you’re adjusting a conventional, non-electric mirror.
It’s important to note that once the mirror is positioned, you should avoid touching it while the adhesive sets. Most automotive adhesives allow for some post-application adjustment but only for a limited window of time—usually about 10 to 15 minutes after mounting. Read the manufacturer’s instructions to determine how much time you have before it locks into place. If you realize after curing that your mirror is misaligned, you may need to carefully remove it and repeat the process. Accuracy during the initial setup is key to getting the most functional rear view with minimal hassle.