2007 S60 2.5T, with 31,000 miles:

For the last few months, I have seen a variety of caution/warning lights. Does the car just freak out after 4 years to force you into a dealership? Here are a few:
Anti-skid system is disabled
STCS needs service
Coolant low

Okay, they have all come on intermittently and then go out. Right now the coolant low light is on, but the temp guage is fine.

Has anyone experienced this problem?

Seriously, I'm waiting for a warning light that says: "Reset all of the radio station pre-set buttons!!"
Please advise or reply to email below

 

You should be acting reasonably promptly to your warning lights, especially the low coolant one.
Just because the temp gauge is reading normal does not mean that the motor is not getting low on coolant and/or maybe losing coolant somewhere with potential to cause damage.
Have you simply switched off your STCS system without remembering or realising it, hence the display?