Can changing tire sizes confuse a vehicles on-board computer?
Yes, if you substantially change the overall diameter of tires. Maintaining the original, specified diameters, as closely as possible ensures that on-board computers will function properly and thereby effectively manage such systems as anti-lock braking systems, traction control, fuel management systems, electronically controlled automatic transmission and electronic handling stability systems. Changing tire diameters sends erroneous readings to the computers. These systems won’t fail, but they will be impacted to varying degrees.
