The service light came on I heard clicking from the right hand side of the dash?

Always worked for me

turn key on step on gas paddle all the way down
3 times in less then 10 sec
light blinks then goes off
turn key off and then start to check
oil life will reset

Its a check engine light. First check your gas cap and make sure it is tight. Other wise you need the vehicle scanned. Go to your local parts store and have them scan it. Come back and tell me your codes that they get

This service engine soon light is different than a check engine light on GM products. Normally there are codes that go along with this light that a lot of scanners cannot read. However, if there are no codes then you more than likely have a fuse blown or some less serious issue. This is a common thing that is not understood so I would start there.

Go through all your fuse boxes and check all the fuses. Replace any that are blown.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Also, it varies between GM vehicles, but this light can also mean you are due for an oil change. So here is a guide that will help with resetting this light if that is the issue:

https://www.2carpros.com/articles/oil-life-reset

If none of this works then we will have to dig further and check the scanner that you are using to find out if it has the ability to scan for body codes (B codes) because you may have a code but just not able to pull it.

Please let us know what you find. Thanks