Just had something similar happen to me today on my 2014 Cruze LS (2550 miles)!
I was driving on the freeway in light rain on the way home from work. All of a sudden the TPMS indicator is flashing and the DIC reads "Service Tire Monitor System." I flip the DIC over to the pressure display and three of the four tires indicate "--" with the fourth reading 37 psi. A short while later the fourth tire also goes to "--." After a brief moment of panic I figured it had to be a problem with the pressure sensor receiver due to the absence of numerical pressure readings. Besides, I had checked all four tire pressures manually (with a gauge) yesterday.
After a minute the TPMS indicator is on steady and all the tires continue to read "--." When I reached my exit (about 15 minutes later) I pulled into a parking lot, shut off the engine, waited briefly, then restarted. The TPMS indicator flashed again and the "Service Tire Monitor System" message appeared, but perhaps 5-10 seconds later it all cleared out and the TPMS indicator turned off.
The only variable I can think of is that I was playing a CD for the second time since I've owned the car. The first time was on the way to work the same day! I probably won't use the CD player much (if at all) but just wanted to test it out. Possibly RF interference from the CD player if the shielding isn't adequate or is defective.
I'm not going to rush this in to the dealer just yet. I've only got one more day of work this week and two next week, so I'll have time to experiment and gather more data.
- Joe