usually means your car is due for a service.
time to do scheduled maintenance check owner s manual
It means your engine needs attention.
I think it's electronic throttle control.
The check gauges light means that one of the gauges is out of the safe range.
Check the oil level in the car.
A low battery can cause the electrical system to flash check engine lights
When the check your engine light comes on in a vehicle it can mean various things. The light is part of the vehicles diagnostic system and acts as a warning that something may be wrong with your vehicle.
According to the 2001 Mercury Cougar Owner Guide : The wrench light in the overhead warning lights means : ( routine maintenance should be performed , the light comes on after approximately 4800 miles / 358 days )
The wrench light is a service indicator. It generally means that something needs attention. Sorry to not be more specific, but GOOGLE didn't reveal much about this light. Several suggestions were to have Autozone, or whichever parts house you use, check the OBD II port to see if there are any trouble codes being "thrown". FriPilot
ADD BRAKE FLUID
Not 100% sure but it sounds like it's a check engine or service soon warning light.
It means you have to check the engine for problems. Something is not working correctly.