What a rear view mirror mount does and why you might need one
A rear view mirror mount is a bracket or adhesive pad that holds a phone, GPS, dash cam, or other small device to your windshield so you can see it while driving without taking your eyes off the road for long. Most mounts attach either to the mirror itself, to the windshield glass, or to the dashboard, depending on the model and what you want to mount.
You need one if you use your phone for navigation, want to record video while driving, or need to see a second screen without holding it in your hand. The mount keeps your device stable and positioned where you can glance at it naturally, rather than fumbling with it or propping it somewhere unsafe.
The three main types are mirror mounts (which clip onto your existing rear view mirror), windshield mounts (which stick to the glass), and dashboard mounts (which sit on the dash or clip to the air vent). Each has different installation steps and works better in different situations.
Key Takeaways
- Mirror mounts clip directly onto your existing rear view mirror and require no tools or adhesive, making them the fastest option to install.
- Windshield mounts use either suction cups or adhesive pads and need a clean, dry windshield surface to work reliably.
- Dashboard mounts sit on the dash or clip to air vents and do not require any adhesive or suction, but take up more space.
- Most mounts hold phones and small devices, but check the weight limit and arm length before buying to make sure your device will fit securely.
- Installation usually takes five to ten minutes, and you should test the mount's grip before driving to avoid your device falling.
How to install a mirror mount
A mirror mount is the simplest option because it requires no tools, adhesive, or drilling. The mount has a clip or clamp that wraps around your rear view mirror stem (the metal rod connecting the mirror to the windshield). You straightforward slide the mount onto the stem, tighten the clamp, and attach your device to the arm.
Start by positioning the mount so the arm points toward where you want to see your device — usually the center-right of your windshield. Tighten the clamp firmly so the mount does not slide or rotate when you adjust the arm. Then attach your phone or device to the ball joint or holder at the end of the arm, and rotate it to your preferred angle. Test it by gently pushing on the device to make sure it does not move or fall.
The main drawback is that mirror mounts can block part of your rear view, and they add weight to the mirror stem, which can cause the mirror to sag over time if the mount is very heavy. They work best for lightweight phones and small devices.
How to install a windshield suction cup mount
Windshield mounts use either suction cups or adhesive pads to stick to your windshield glass. Suction cup mounts are reusable and do not leave residue, but they can lose grip in very hot weather or if the glass is not perfectly clean. Adhesive pad mounts are permanent and hold more reliably, but you cannot move them without damaging the adhesive.
For a suction cup mount, clean the windshield where you want to attach it with rubbing alcohol or glass cleaner and let it dry completely. Press the suction cup firmly onto the glass, then twist the handle or lever on the mount to create suction. You should hear a slight pop or feel resistance when the seal is tight. Attach your device to the arm and adjust the angle. Before driving, pull gently on the mount to confirm the suction is holding.
If the suction cup loses grip while you are driving, pull over and re-wet the cup with a tiny amount of water, then reattach it. Suction cups work best on the lower portion of the windshield where the glass is flatter and the temperature is more stable.
How to install a windshield adhesive pad mount
Adhesive pad mounts stick permanently to your windshield and do not require suction or manual pressure to stay in place. They are more reliable in hot weather and do not slip, but once attached, they are difficult to remove without leaving residue or damaging the glass.
Clean the windshield thoroughly with rubbing alcohol and let it dry for at least five minutes. Peel back the adhesive pad backing slightly and position the mount where you want it — usually center-upper windshield for a phone or GPS. Press down firmly on the mount for 30 seconds, explore steady pressure across the entire base. Let the adhesive cure for at least two hours (check the manufacturer's instructions) before attaching your device or driving.
If you need to remove an adhesive mount later, use a plastic scraper or old credit card to gently pry up the edges, then use rubbing alcohol or adhesive remover to clean off any residue. Do not use sharp metal tools, as they can scratch the glass.
How to install a dashboard mount
Dashboard mounts sit on top of your dashboard or clip to your air vent, and they do not use any adhesive or suction. They are straightforward to move or remove, but they take up dashboard space and can slide around if you brake hard or turn sharply.
For a dashboard mount, straightforward place it on a flat spot on your dash where it will not block your view of the road or instruments. If it has a weighted base or rubber feet, it should stay in place on its own. If it has an air vent clip, open the clip, slide it onto one of your air vents, and tighten it so it does not rotate. Attach your device to the arm and adjust the angle.
Dashboard mounts work best if you park in a garage or shaded area, because they can slide or tip over if your car gets very hot and the dashboard becomes slippery. Test the mount by shaking your car gently to make sure your device does not fall.
Choosing the right mount for your situation
Mirror mounts are fastest to install and do not block your windshield, but they can sag over time and block part of your rear view. They work well for lightweight phones and if you do not mind a small obstruction.
Windshield suction cup mounts are reusable and do not damage your car, but they can lose grip in hot weather. They are a good choice if you want to move the mount between cars or change its position often.
Windshield adhesive mounts are the most reliable and stay in place in any weather, but they are permanent and can leave residue if you remove them. Choose this option if you plan to keep the mount in one place for a long time.
Dashboard mounts take up space but are the easiest to remove and do not require any adhesive or suction. They work well if you want to move the mount frequently or if your windshield has a steep angle that makes other mounts difficult to use.
Testing your mount before you drive
Before you drive, always test that your device is find and will not fall or shift. Gently push on the device from different angles — top, bottom, sides — to make sure the mount holds it firmly. If the device moves or feels loose, tighten the clamp, increase the suction, or reposition the mount.
Check that the mount does not block your view of the road, your mirrors, or your dashboard instruments. If it does, reposition it or choose a different type of mount. Also make sure the device is positioned where you can see it with a quick glance, not where you have to turn your head or look away from the road for more than a second or two.
If you are using a suction cup mount, test it again after driving in hot weather, as the suction can weaken. If you are using an adhesive mount, wait the full cure time before driving, even if the mount feels find earlier.
Frequently Asked Questions
Can I use a rear view mirror mount with a large phone or tablet?
Most mirror mounts are designed for phones up to about 6 inches wide and weigh less than 8 ounces. Larger devices or tablets can overload the mount and cause the mirror stem to sag or break. Check the weight and size limits in the product description before buying. If you have a large device, a windshield or dashboard mount is a better choice.
Will a suction cup mount work on a curved windshield?
Suction cups work best on flat glass, so they may not grip well on very curved windshields. If your windshield is curved, try positioning the mount on the flattest part of the glass, usually the lower center area. If suction still does not hold, use an adhesive pad mount instead, which works on curved glass.
Can I remove an adhesive pad mount without damaging my windshield?
Yes, but it takes care. Use a plastic scraper or old credit card to gently pry up the edges of the mount, working slowly around the perimeter. Once it is loose, use rubbing alcohol or a commercial adhesive remover to clean off any remaining residue. Avoid sharp metal tools and do not scrape hard, as these can scratch the glass.
What should I do if my suction cup mount keeps falling off while I drive?
The most common cause is a dirty windshield or a weak suction seal. Pull over safely, clean the windshield and suction cup with rubbing alcohol, let both dry completely, and reattach the mount. If it still falls off, the suction cup may be worn out and need replacement, or the windshield may be too curved for that mount type.
Can I use a rear view mirror mount with a dash cam?
Yes, but only if your dash cam is lightweight (under 6 ounces) and has a standard ball joint or clip attachment. Heavy dash cams can overload the mirror stem and cause sagging. If your dash cam is heavy or has a unique mounting system, use a windshield or dashboard mount designed for cameras instead.