2014 Chevy Suburban here. Key fob stopped working, Tire Pressure Monitor stopped working (error on dash) at same time. Here is what I did:
1. Changed key fob battery (did not help).
2. Tested spare key fob (also did not work).
3. While getting to the fuse box (driver door), I noticed the driver side power seats also would not work.
4. Checked fuse #25 (Driver Seat Module, Remote Keyless Entry System), it was blown.
5. Replaced with good 10A fuse to fix the problem.
6. BTW, I had to reprogram the key fob that I changed the battery in.