Problem with the SRS. Not a DIY repair as serious injury can occur when working on the SRS. Take it to a professional.
There is no such thing as a 2010 Monte Carlo, so the answer would be no
There is no such thing as a 2008 Monte Carlo, so the answer would be no.
the wiring is probally defected or the light is burned out
Yes
have vehicle scanned to determine the problem
instrument cluster is shorted out or corroded
The light may turn on due to uncleanliness of the start key. For this reason, it must be cleaned.
it would be euros
no there two different body styles
The Funny Side. I don't think the population of Monte Carlo would be very impressed if you sprayed them with freon.
why would a 2003 Monte Carlo hesitate between 30-45 mph
Something may be wrong with the engine, and you might need to check it.