After 4 years of battling to get my genuine sensors working using various vendors, I spoke to Professional Car Accessories. I talked them through the issues and they ascertained that the sensors had been installed in the incorrect location. I decided to start again with new sensors. I especially liked the fact that the new sensors offered some customisation of the settings, just in case there was some tweaking required. The Perth installer came around to our house promptly and was really friendly and professional. Professional Car Accessories also followed up a week later to make sure everything was working well which I'm happy to say is the case.