A dash cam that keeps falling off the windshield is almost always a surface, heat or adhesive problem. Fix it once and it should stay put.
1. Clean the Glass Properly
Wipe the spot with an isopropyl alcohol wipe, and let it dry. Window cleaner and glass polish leave a film that stops adhesive from sticking.
2. Do Not Stick It on a Cold or Wet Surface
Adhesive mounts grip best at moderate temperatures on dry glass. In cold weather, warm the glass gently with the car heater first.
3. Give the Adhesive Time to Cure
Press firmly for about 30 seconds and, ideally, let the adhesive set for several hours before adding the camera’s weight and driving.
4. Replace Worn Adhesive Pads
Old pads lose their grip, especially after repeated moving. Replace them with fresh double-sided automotive tape of the right size.
5. Consider Heat
Summer heat softens adhesive and the suction seal. A sunshade helps, and so does a mount designed for high temperatures.
6. Avoid the Tinted Strip and Sensors
Mount on clear glass, away from the tinted strip and any sensor housing near the mirror.
7. Choose the Right Mount Type
- Adhesive: most secure for a permanent install.
- Suction: easy to move, but more likely to release in heat and bumps.
- Mirror-mount: good for mirror-style cameras.
For the full setup, see my dash cam installation guide, and for other problems dash cam not recording fixes.
I’m Avi, a parent, car owner and tech lover who researches AliExpress finds for real driving life – from dash cams and diagnostics tools to the gear that survives a long road trip with kids in the back seat. I spend hours digging through specs, buyer reviews, and automotive forums (and tracking which travel toys parents report actually stay quiet past mile 50) so you don’t have to – and I only recommend what holds up under real buyer scrutiny.