You'll never stop it falling off a windscreen, but doing the following will slow the process down. Get a 'spectacle glasses cleaner' wipe, one on those single use jobs in it's own pouch. Clean the windscreen where the mount goes, then clean the rubber mount with it as well. Then press the mount on to the glass as hard as you can. Then from the outside of the vehicle, check the seal you have just created, there should be a ring of almost jet black around the rubber where it touches the glass. If there are any gaps, press from inside the vehicle whilst looking at it from the outside till you have a good, unbroken seal. This will last ages till the next time it falls off!

Interesting video,I think I am going with the beanie mount. Thank you for showing the alternatives.

Played a gig last night in the middle of nowhere. Cold and foggy on way back - and as you say, no lasting suction possible. Sat nav plunged like a lemming. Repeatedly. Gaffa taped the poxy thing to the dash in the end. Found your video this morning. Bought a friction mount via your link just now. Fingers crossed. Thank you.

Great video. I have to say I knew you must be in the U.K. when you said “when it’s really hot, like 68 Fahrenheit or 20 C lol. I still feel that way even though I’m in America right now lol. Sitting in my vehicle with the A/C on because it’s 92 Fahrenheit in the shade lol. The tele said it would be “warm” today lol. Thank you for the great video. Cheers mate

You did not mention the adhesive dash mounts. After unsuccessfully trying the bean bag versions and grippy pad versions I opted for a more positive fixing method. Double sided adhesive tape. I found this was the only real fix for my vehicle. It is still non destructive (I hope the adhesive does not melt into the dash). Thanks for the video.

Thank you Joseph

My problem is with the dashcam, I have a 3M stick pad, it's only been on about a week and fell, the condensation caused that. This is a new van, strange how it stayed put for about 3 years in my last van.

Thanks mine kept falling off. Dirty, very dirty. At first I was wondering why you kept mounting them on the 'passenger' side. Duh, sorry.

Hard braking will push it forward against the windshield, not a good test. Hard turns much better test to see if it stays in place.

who uses sat nav units anymore?

Sorry, but as a Brit, I wondered if any American viewers were bemused by you calling 68 degrees outside as "hot"

Just put some water on the suction cup before you mount it on the windscreen, and it will never loose the vacuum and fall off.

If those solutions are stopping it falling off the windscreen then there are others such as don’t own a sat nav or keep it in your pocket or .... rename the video alternatives to having it on the windscreen.

Why don't you hiss a bit more when you talk? 🙄 Jeez man! Bloody ringing in my ears.

This is not a video about how to keep your GPS from falling off your windshield. It’s a video about how not to mount the unit to the windshield, lame

I would say the final problem way don't you speak English !!!