I have a 2007 Suburban 1500 LS.

I believe I need to replace the TPMSes. (Tire Pressure Monitoring Sustem) I looked on a few sites and there are several to choose from.

I would appreciate suggestions on which to buy.

 

The TPMS became mandatory for 2007 and newer vehicles. The goal was to minimize motorists using excess gas with underinflated tires. There is the false notion that it is a safety feature. Unless there is a leak that needs to be fixed the tire pressure is not going to change much from one day or week to the next. I would put the money into a good tire pressure gauge instead.

 

I don't know where you live but in Pennsylvania you don't need working monitors to pass inspection. They are expensive to replace and aren't worth the time and money in my opinion. You just have to clear the message every time you start the truck. Check your air pressure the old fashion way.