How to reattach rear-view mirror to windshield?

When starting, confirm which mounting style your vehicle uses to choose the right repair kit and follow its specific directions for best results.

What you’ll need

Having the right tools and materials on hand helps ensure a clean, secure reattachment and reduces the risk of windshield damage.

• Windshield-safe rear-view mirror adhesive kit or urethane adhesive designed for auto glass


• New mounting pedestal/base compatible with your mirror


• Isopropyl alcohol (70% or higher) and microfiber cloths for glass cleaning


• Razor blade or plastic scraper to remove old adhesive (careful handling required)


• Gloves and safety glasses


• Masking tape or painter’s tape to hold the mirror during curing


• Optional: suction cup tool to help align the pedestal during placement

Using the kit recommended by the manufacturer ensures compatibility with your windshield and mirror and improves bond strength and curing reliability.

Step-by-step procedure

These steps reflect the most common windshield-mounted pedestal method used in many cars. Always refer to your specific kit’s instructions for nuances.

1. Set up your workspace and protect the dash area; ensure the windshield area is clean, dry, and well-lit.


2. Carefully detach the mirror from its old pedestal or mount. Look for a release clip or twist mechanism and follow the mirror’s manual to separate it.


3. Remove any old adhesive from the windshield and pedestal with a razor blade or plastic scraper, then thoroughly clean the glass surface with isopropyl alcohol and a microfiber cloth. Let the surface dry completely.


4. Lightly test-fit the new pedestal on the windshield to select the optimal location, avoiding defroster lines and sensors when present.


5. Apply the adhesive per the kit’s instructions. If using a two-part urethane, mix and apply it evenly to the pedestal bottom or the intended contact surface on the windshield, as directed.


6. Press the pedestal firmly onto the windshield at the chosen spot and hold it in place for the recommended time (as specified by the kit). Use masking tape to help secure if needed.


7. Attach the mirror to the pedestal and adjust its position to ensure clear, level visibility. Check that the joint seats securely and moves smoothly.


8. Allow the adhesive to cure without moving the mirror. Cure times vary by product, but expect a period from 1 hour for light use to 24 hours for full strength; always follow the product’s exact guidelines.


9. After curing, test the mirror’s stability and perform a final alignment check to ensure it provides an unobstructed view of the road behind you.

The step-by-step approach above reflects typical DIY practice; always rely on your specific adhesive kit’s instructions for the best result.

Safety considerations and when to seek professional help

Not all situations are suitable for a DIY fix. Consider professional installation if any of these apply.

• The windshield area around the old mount is cracked or structurally damaged.


• The current mounting hardware is damaged or corroded beyond safe repair.


• Your vehicle uses a nonstandard or clip-based mounting system and you’re unsure how to proceed.


• You’re unsure about curing times or lack the proper tools to ensure a secure, precise installation.

A professional installation ensures the mirror is securely anchored and that the adhesive bonds correctly with your windshield, preserving safety and warranty coverage.

Common mistakes to avoid

Steering clear of these pitfalls helps ensure a safe, durable repair.

• Using non-windshield-approved adhesives (like household glues) which can damage glass or fail in temperature swings.


• Installing the pedestal too close to defrost lines, sensors, or the edge of the windshield.


• Rushing curing or removing tape before the adhesive has fully set, which can weaken the bond.

Careful preparation, proper materials, and adherence to product directions substantially improve the outcome.

Summary

Reattaching a rear-view mirror to the windshield is usually a straightforward DIY repair when you use a windshield-safe adhesive kit and follow the manufacturer’s instructions. Identify your mount type, gather the right materials, clean the glass thoroughly, apply and cure the adhesive correctly, then reattach and align the mirror. If you encounter damage to the windshield or mounting hardware, or if you’re unsure about any step, seek professional assistance to ensure a safe, lasting install.

How to get rearview mirror to stick onto windshield?

Clean the marked. Area with the cleaner/activator. Towelet also clean the side of the mounting button that will be attaching to the windshield.

What is the best glue to reattach a rear view mirror to a windshield?

The best glue for a rearview mirror to windshield is a specialized rearview mirror adhesive kit, such as those from Permatex or 3M, which are designed for this specific glass-to-metal bond. These kits include an activator and a cyanoacrylate-based adhesive for a strong and reliable hold. Thoroughly clean both surfaces first, and follow the kit's instructions precisely for the best results. Avoid using regular super glue or epoxy, as they are not designed for the flexibility and specific stress of this application.
 
You can watch this video to learn how to reattach a rearview mirror with a specialized adhesive kit: 51sMAGS How To VideosYouTube · Jan 4, 2023
What to do

1. Clean the windshield: Use a new razor blade to gently scrape off the old adhesive. Then, clean the area thoroughly with rubbing alcohol to remove any dirt, oil, or residue. 
2. Apply the activator: Follow the kit's instructions to apply the activator to the windshield and the metal button on the mirror's base. 
3. Apply the adhesive: Apply a small drop of the adhesive to the metal button. 
4. Bond the parts: Firmly press the button onto the clean spot on the windshield and hold it in place for the time recommended by the manufacturer (usually about 60 seconds). 
5. Allow to cure: Let the adhesive cure completely before reattaching the mirror. This typically requires waiting at least 24 hours before sliding the mirror back onto the button and securing it. 

• Regular super glue or epoxy: These glues can be too rigid and may crack the windshield over time. 
• Incomplete cleaning: If the surfaces are not perfectly clean, the adhesive will not bond properly. 
• Plastic buttons: If your mirror has a plastic button, it may require professional help, as some adhesives are not designed for this type of mounting. 

Will Safelite reattach my rear view mirror?

Yes, our auto glass technicians will remove your rear view mirror and attach it to your new windshield. Will you vacuum my vehicle after service? Yes, our technicians will vacuum any pieces of broken auto glass in your vehicle.

How do I reattach my rearview mirror?

To reattach a rear-view mirror, first prepare a kit with a rearview mirror adhesive, razor blade, and rubbing alcohol. Clean the old adhesive off the windshield and the metal tab on the mirror, then apply a small amount of the special adhesive to the tab and press it firmly onto the windshield at the marked spot, holding it until it sets. Finally, allow the adhesive to cure fully according to the manufacturer's instructions before reattaching the mirror and tightening any set screws. 
You can watch this video to see the entire process of reattaching a rear view mirror: 1mAutOdometerYouTube · Mar 8, 2019
Step 1: Prepare the mounting area 

• Mark the position: Use a crayon or tape to mark the exact spot on the outside of the windshield where the old mirror was attached. 
• Scrape old adhesive: Carefully use a razor blade to scrape off all old adhesive from the windshield. Avoid sanding, which can damage the glass. 
• Clean the surfaces: Clean the marked area on the windshield and the metal tab on the back of the mirror with the cleaning towelette that came with your adhesive kit or with rubbing alcohol. Do not touch these surfaces with your fingers after cleaning. 

• Apply the adhesive: Apply a single, small drop of the rearview mirror adhesive to the center of the metal tab, not the windshield. 
• Press and hold: Immediately place the tab onto the marked spot on the windshield. Press firmly for at least one minute, or as directed by the adhesive instructions. 
• Secure with tape: Once the tab is in place, use a piece of tape to hold the tab securely against the windshield while the adhesive cures. 

• Wait for the cure time: Do not rush this step. Let the adhesive cure for the amount of time specified in the instructions, which is typically at least 30 minutes to an hour.
• Remove the tape: Once the curing time is complete, remove the tape from the outside of the windshield. 

• Slide the mirror on: Slide the mirror back onto the mounted tab until it clicks into place. 
• Tighten any screws: If your mirror has a set screw to keep it from sliding off, tighten it now with an Allen wrench or other appropriate tool. 
• Reconnect any wires: If your mirror has an electrical connector, plug the wiring harness back in. 

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.