every car i have had with tpms has this problem in late fall anf early spring when the temperature changes drastically.. and you always freeze going around the car to check it..

i hate tpms. i gives you to small a range of pressure, so when the tires are cold its too low and will light up.. but go out when the tires are warmed up from driving.. but then you get it checked and they fill them up cold, so its off until the tires get up to driving temperature, that trips the light until you stop again.