Alcohol, water, and even saliva will not make the suction cup stay stuck to the windshield of any of my three vehicles for much more than a day or so.
Hello rob, may I know whether if you have the same steps as below to install the mount?
1.First tear off the protective film of serial number 1, then stick the electrostatic sticker on the glass.
2. Tear off the protective film of serial number 2,
3. Lastly stick the GPS bracket on the electrostatic sticker.
It will be appreciated if you could email us to support@vantrue.net if you need further assistance. Thank you very much.