Tire Size adjustment

[BrandonShepherd22]

Does anyone have any recommendations on adjusting the ECU for 37" tire size on the 2025 RHO? The dealer said they can only adjust to accommodate a 35" tire. My Speedometer is off by 5mph so I'd like to figure out a way to adjust it myself

 

[Irongoats]

Probably not until Tazer or Alpha OBD can access the canbus architecture then you can do it yourself

 

[frogjbm]

Probably not until Tazer or Alpha OBD can access the canbus architecture then you can do it yourself

The only way...