So, with 7500kms, the Tundra went in to the dealer for its first service. It's not so much a service, as an inspection, but it is required by Toyota. I think the only thing they actually do is grease the driveshaft U-Joints. Oil change intervals are every 16 000kms, or 1 year, whichever comes first, with the little 8000km inspection/grease in between.
They performed a few more things. There were a couple of recalls from Toyota: One had to do with the front radar sensor, and the other was an emissions related ECU update.
Finally, I've been having an issue with the Integrated Brake Controller. When the trailer is plugged in, the IBC randomly loses signal, and thinks that the trailer isn't plugged in. When this happens it beeps, and I don't have trailer brakes. Then it will randomly reconnect again. I mentioned this to them when I dropped the truck off, and they found a related TSB from Toyota that they went ahead and applied to the ECU. I'll find out this weekend if it has fixed it. I'm not too concerned by my little trailer not having brakes (the truck's brakes are more than large enough to haul everything back down in an emergency), but the beeping was annoying, and well, everything should work as intended on a new truck.
Anyways, total cost to me: $0. The first two services are covered by the dealership as amends for overspraying my truck when it was new. The other items were covered under warranty.