swapping 20's for 22's

[sparks77]

Hi Everyone,

I am needing new rubber on my '15 Denali.
it currently has the stock 20" wheels and I am looking to upgrade to the AR916
I am thinking of getting the 22" and getting some winters tires for the old 20"

A few questions I have are,
1. does anything have to be done by the dealer when swapping wheel sizes?
2. does it have any affect on the Magnetic ride control
3. will the speedometer be accurate

 

[swathdiver]

If yours is similar to the previous generation you do not have to do anything. Each wheel position has a speed sensor so tire and wheel size matters not, the computer monitors the speed of the hubs basically.

 

[Doubeleive]

speedometer may be off just a hair maybe 2-3mph, the dealer may not even try to correct it but if you get a canned tuner you can adjust for it easily but it's not enough to worry about otherwise.