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Basically, it means there was a problem in the tire pressure monitoring system. This system monitors the air pressure in your tires, and if the tires drop below, or go above a calibrated pressure reading the system will notify you so you can attend to whatever tire is low.
If a tire is low, the message is Check Tire Pressure, for your message, there was a problem in the actual system (which consists of sensors in each tire, powertrain control module (PCM), body control module (BCM), and IPC/DIC (instrument panel cluster/driver information center).
If it does not reappear, just blame it on some sort of momentary glitch in the system. If it does reappear, a dealer visit is necessary.