I drive predominantly highway and have changed pads at 25k and now changing again at 53K, due to pads being at 15%. rotors also being changed due to wear being below spec. no sensors to warn of low pad levels does not lend assistance to maintenance. it appears that front end design of vehicle is placing above norm stress on front brake system. there are no after market parts available at this time and only one manufacturer of rotors. found rotors to be much cheaper purchased at NAPA, as opposed to direct at dealership. it looks like rotors require changing every other brake job. this is crazy!