I just purchased a '15 Rav4 LE with 90K on it. It's as basic as it gets. However the low tire pressure light has come on all the time after an initial 1K miles of interstate driving when it was not on. Now it'll blink for a minute and then remain on which the manual says is the sign for a malfunction. There is not a reset button under the dash which would be near my right knee if there was one. What should I do? Big thank you for any input. Jim