Gangsta Car

So I'm driving to work the other morning with the heater blowing. The weather has become Arctic cold and I couldn't wait for it to warm up inside. From the dash, my car starts flashing a sign at me that I've never seen before. Can I read the manual and drive at the same time? I'm great at multi-tasking, but this might be too great a challenge. I have no choice but to pull over and dig the manual out of the glove box. What is a triangle with a snowflake in it? No Coolant? Engine too cold to function? 
I sat there and thumbed through the Index, the Table of Contents, and then the manual looking for an explanation. I found it in the section called "Warning Symbols!" There're a couple of pages of them just before the index. Grrr!
Anyone want to hazard a guess of what that triangle with a snowflake means?
It means: It's cold outside. Drive cautiously.
Duh! Try explaining that one to your boss about why you're late for work.
I think it's time to knit the car a sweater. Maybe one with pirate symbols.