How do you reset the speedometer on your Acura RSX after upgrading from 17 to 18 inch wheels?

To reset the speedometer on your Acura RSX after upgrading from 17 to 18-inch wheels, you'll need to recalibrate it to account for the difference in tire circumference. You can do this using an OBD-II scanner that has the capability to adjust the vehicle's speedometer settings. Alternatively, you may also consider reprogramming the speedometer through a performance tuning shop, which can adjust the settings based on the new tire size. Always ensure that your new tire size is compatible with your vehicle's specifications for accurate readings.