UPDATE. The internal batteries of these sensors failed after 18 months of installation. Not sure if it was the old batch. They worked well if they lasted long but are not OEM reliable for battery life. ** This is a great replacement for Subaru OEM TPMS sensors. However, these particular sensors are not programmable like some of the newer Orange TPMS sensors and lack the OPSS markings. If you just want a replacement for a broken OEM sensor they are great and fantastically priced. You just needβ¦