GM Built In TPMS system

[AbHDToyHauler]

Just thought I would post this in case it helps someone who wanted to do the same thing I have. First let me say I love the built in GM tire pressure monitoring system. I was given 4 sensors for the trailer when I bought my 2020 GMC DRW. I put them on my Toyhauler tires and they have worked perfectly. But.... I also have a cargo trailer and wanted to have same on it. Now , GM trucks allow for up to 6 trailers and it will remember pressure sensors for each one if you so wish. The biggest barrier was the cost. GM wanted like $150 (Canadian) for a sensor. I decided to take the plunge and buy sensors from Amazon that were reviewed to work with the GM system. They only cost about $16 per sensor. They work perfectly . I will soon be adding them to my third trailer. Hope this helps someone else. Here is what I purchased from Amazon Canada. PID 13598773 Tire Pressure Sensors 433MHz TPMS Compatible with GMC Buick Chevy Replaces 13589601 13522629 Set of 4