Does Toyota reset the speedo for the Yaris that have 14" and 15" rims?

[Bob Dog]

Put as simply as possible: it is the diameter of the tires, not the diameter of the rims that determines speedometer function.

[IllusionX]

Originally Posted by thebarber

from 06- early 08 most non-RS 3 and 5dr models were sold w/ 14's and 175-65-14 tires (like mine)

it wasnt till mid-08 MY that they went up to 185-60-15 as standard rims/tires in canada....in the states most got 15's and the larger tires

i run 195-50-15's now which is what the echo guys use cus they all got 175-65-14's stock as well

you just need to know waht your car came with and stick to that rolling diameter

i dont think toyota can/will adjust the speedo if you buy different sized rims/tires

well said.

Besides, the test was done with 2 echos way back in the days.. both stock, one with 14" and the other with 15". Driving side by side, it was obvious that they had a 4% difference.