Our vinyl car and truck lettering is designed to withstand temperatures as low as -40F. Being waterproof, it will also withstand snow, ice and frost. One common issue users face with vehicle lettering is damaging the lettering when scraping frost off of the window. We recommend carefully scraping around the lettering when doing so, being sure not to scrape over it. You are also able to order your vehicle lettering with front-facing adhesive (called 'Inside Glass' on our design tool), allowing you to place your lettering on the inside of your vehicle's window. However, we typically do not recommend inside glass installations because the tinting and reflection of your windows can significantly decrease the visibility of your lettering.