Yes, you can reset the oil change reminder and you can also set your desired interval.
There is no magic to an oil change, but don’t stop there. The chassis requires a lube every 6200 miles and since that is an odd number and too difficult for me to remember for scheduled work, I just use every 5000 miles for a service interval that includes an oil change, lube of the chassis, checking and draining the air system, fuel filters, oil filters, etc.
With every oil change I drain the crankcase and when refilling I start with the reservoir. That way the oil in it is only as old as the last oil change. Then I add the rest needed to the crankcase and refill the reservoir.
Most of the time for my routine service is spent checking things and looking for anything that might indicate a potential issue. I look at everything from hub seal leaks to fluid levels in the hubs, differential, power steering, coolant, windshield washer fluid, and the muffler lube.
OK, I was kidding about the muffler lube.
But do look at things like corrosion on the muffler, straps or exhaust tip. Look for wet spots, brake pad and shoe lining thickness, cracks, rubbing hoses, anything loose, look at the inner sides of the tires for damage such as cuts, and in general look for anything loose that should be tight (like steering components) and anything tight that should be loose like slack adjusters.
It doesn’t matter if you do the work or someone else does it, but what is important is to use the service interval to look at everything and anything. Belts, hoses, clamps, tire pressures (even if you have a TPMS) etc.