Larger tire size without recalibrating computer?

Can someone tell me. If I add a leveling kit, how big of a tire can I go WITHOUT having to re-calibrate the computer? Just don't want any issues to my 2020 Tundra!

 

You can go 1 size up without doing anything. As far as a leveling kit, depends on size, snd what size tire your looking to go up to. What's your current tire size?

 

I'm picking up truck Saturday. I believe tires are 275/65/18... level kit made by Ready Lift think its 2.5-3".... Thats the problem not sure what size to get. Thinking 285/65/18?

 

You basically ran right over the thread that goes over it by coming to the wheels and tire forums. lol. check here.
https://www.tundras.com/threads/largest-tire-you-can-run-stock-for-all-generations.9762/

 

Check out here You can easily go up to a 285 with or without leveling kit. You get into trouble when you go wide.