I'm about to have a 3" level and 35" tires installed on my 2021. Besides the obvious adjustments (frontend and headlight alignment), are there any programming updates performed by the dealer needed to ensure my vehicle's "tech" will work correctly (e.g., auto high-beams, lane centering, adaptive cruise control, etc.)?

 

I would, several companies have adjusters to get speedo correct. I have 34's and havent, its only off 2mph or so. But 35's, I probably would.

https://www.roughcountry.com/speedom...gaAhoOEALw_wcB

 

If you use BlueCruise, adaptive cruise control, or automatic lane centering, I would.

 

save your money and use forscan to recalibrate speedometer. Took me 20 minutes

 

A speedometer difference off by 2 mpg is only at one speed.
It has never been and will never be "off by 2" except at one speed. That speed varies as the speed difference is a percent equal to the percent of tire size change.

 

for me, prefer not to get into computer anywhere. New to Forescan. Truck has 11K

Me, i don't care unless Im doing 80 on highway. 2 off is pretty general.

 

I have a 6” lift and didn’t need to do anything other than adjust the speedo with Forscan. Everything you mention works as it did before.

I hope you’re not running an aggressive offset rim or those 35’s will rub like crazy with only a 3” lift.

 

I'm going to run the factory 18x8.5 sport rims. All work is going to be done by my local dealer today so we will see how things turn out this afternoon.

 

It's been a while since I've used Forscan to add my brake controller. Do you recall a link on what needed to be changed? Do you enter your tire circumference or diameter?

I've noticed my MPG has gone done with new tires, which weren't much taller, but I'm sure that is affected as well since it's less miles registered with the same amount of fuel.

 

Super happy with how the level/lift came out and how the 35x12.5R18 look on the factory sport rims. Only rubs in one place on the upper control arm in reverse at full lock.