This is the low coolant light. It will go off for no reason on most '99-'00 vehicles if the level drops into the 'good' range, you need to keep the coolant topped off over the MAX line by about 1" to keep the light off.
Don't drive with the low coolant light on thinking everything will be fine, it may have gone off when it was at MAX, but nothing will tell you if you're running low after that.
You are low on coolant.
On a 2000 Mercury Cougar : That's your Anti-theft system status light
I have what looks like a battery light on my dashboard. What does this mean?
its below freezing temperature
I was looking at the 1999 Mercury Cougar Owner Guide and it does not show that it has a gas cap warning light
No, they are simply reflectors. But obviously the reverse lights on the strip light up.
usually that the battery isn't taking a charge. have the alternator checked, many shops will test the charging system for free
it's not an x. it's a picture of a fan. it's for your coolant. add some.
That is a "Check transmission light"
You need an oil change.
Fuse, loose connection, or the light switch. how do you remove the dashboard on a 94 mercury grand marque?
The repair section on autozone.com explains how to change the light switch.