I have a Autel diagnostic tool Cost around £30 – It’s not the dearest model on the market, but is capable of clearing fault codes / lights. It has its limitations. E.g. not capable of rewriting.
Okay now I know which side of the road you drive on, I can answer your question regarding resetting the service light – Unless you have requested the service light to be turned on in your CRV you will not be required to reset it. Can’t lay my hands to it at present, but if you do have the service light system activated there is a quick way of resetting it …… Let me try and find the information.
Air bags will require another / specific diagnostic tool.