Snowflake Next to Temperature on Dash?
My old vw did the same at 39/40 degrees and manual explained it.
When water evaporates, it cools, under the right conditions the road can ice over a few degrees above freezing particularly at bridges.
you.
https://www.google.com/search?q=snow...obile&ie=UTF-8
Frost warning. Comes on at 37F or below.












