[Bakwoodz]

so i recently upgraded my tires and went with the 35's and suddenly my service break system light came on. so i shut the truck off and started it up and it went away. no problems or anything with the breaks. break fluid is fine. drove for a little while longer and it did it again. i was told that this usually happens around the 35" mark and i could have a dealership reflash the abs system for the bigger tires. or does anyone know a way for me to do it myself so i don't have to pay the dealership? any help would be awesome. thanks in advance.

 

[theunderlord]

Rob can make you a different tune for bigger tires.

 

[DuramaxSMOKE11]

you need to change your abs tire size. the abs is sensing that there is not enough movement which is setting a fault

 

[Bakwoodz]

got it taken care of this morning, i set the tire size in my EFI to 34.5 and im within .5mph and that is keeping the light off. thanks guys