That happened to me once and it turned out that after I thoroughly cleaned the dirt out of all four wheels, it went away. I had gone through a puddle that splashed a bit of mud on the wheels and evidently some dirt got in a sensor somehow. It has never happened since.
I had this error early on, prob about a month into ownership. It's not a serious error but the dealers I dealt with had a time wtih it and they ended up flying in a SRT engineer to resolve. If they have issues fixing it reach out to me and I'll share my dealer info in hopes it can be
If it's the same system in my SRT jeep it's VERY sensitive. Literally 1 pound or less less than it requires (get this ALL the time). So in the jeep, it requires 33 (or 32), and when it hits 32, it sends the warning. Heck one time it was AT that threshold, and still gave it (as it was 32.5).
My Mercedes also does this. I notice it most when we experience a temperature drop. A huge red warning light shows on the dash and instructs immediate attention. Usually it is just that the cold weather has caused the tire pressure to drop an few pounds.