What to Do If the Dash Cam Keeps Falling Off the Windshield?
3 Answers
If the dash cam keeps falling off the windshield, you can use 3M adhesive and a bonding promoter to secure it firmly. Before installing the dash cam, ensure the installation area on the windshield is clean. For dash cams fixed with adhesive tape, make sure the surface is dry—using a hairdryer to heat the adhesive tape can improve adhesion. For suction cup-mounted dash cams, applying a small amount of water to the suction cup before attaching it to the windshield can enhance stability. Before installation, determine the optimal position for the dash cam. It is recommended to install it in the center or slightly to the right of the rearview mirror for an optimal recording angle, which provides more convincing evidence. Many dash cams are designed in a rearview mirror style, allowing direct replacement of the original rearview mirror.
I've been driving for decades and often encounter the issue of dash cams falling off, especially in summer when the car interior gets hot. If there's too much dust on the windshield, the adhesive won't stick properly. Dust is the main culprit—before installation, I always thoroughly clean the glass with alcohol or detergent to ensure the surface is dry and free of moisture. I've found that wiping it a few times with a microfiber cloth before sticking the cam makes it much more secure. Aging adhesive pads also affect stickiness; if your dash cam has been in use for nearly a year, remember to check if the pad is cracked and replace it if necessary. Temperature fluctuations can soften the adhesive, so try to park in shaded areas to avoid direct sunlight, which helps extend its lifespan. From a cost perspective, spending a few dollars on strong double-sided tape is more economical than frequently replacing the device. Safe driving comes first, and having it fall off constantly is truly annoying.
I've done quite a few minor car modifications and found that dashcams often don't stay firmly attached due to glue type or installation issues. While 3M tape is good, it tends to fail over time. I recommend using removable adhesive or magnetic mounts, which can be bought online for just over ten bucks. When installing, don't rush—press evenly to ensure the adhesive fully bonds, and avoid driving on bumpy roads right after installation. I've also tried adding a layer of adhesive-enhancing spray or cleaning with alcohol and waiting a few minutes before securing it. When choosing products, look for models with good temperature resistance—many brands now perform well and are less likely to fall off. For DIY reinforcement, a dab of hot glue at the edges can serve as a simple fix. Sharing this experience to help everyone save trouble and stay safe.