[bigjohnsd]

To reset the Service Light you will need either a HEX GS - 911 tool ($400 for 10 VIN's) or the Motoscan Professional APP, an Android phone or tablet, and the appropriate Bluetooth OBD Diagnostic tool (all for about $120 - unlimited VINs).
See this thread for more info - ScanTool MX & Motoscan app


First Service - here is a link to the First Service requirements checksheet https://www.ascycles.com/ServiceSchedules/R1250GS-600-Service-Schedule

 

[bigjohnsd]

It is very bad for your warranty if you skip the first service. If you really want to skip the services during warranty period, it's up to you. Just keep all the receipts of the parts used for service so if something goes wrong during warranty period, you're covered. I just wouldn't skip the first service.
My GS is still on warranty and I take my bke to the dealer for scheduled service. After warranty, I'll do it myself.

Assuming you are in the United States - the Magnuson–Moss Warranty Act
protects you when you do your own service but you need to document that service and save receipts.