same thing happened to me last week. I've seen same issue posted here before. IIRC, most people say using the top grade(shell) gas will resolve this problem. however, we've been feeding this car with chevron and shell highest grade only.

mine gives me a code in the instrument cluster module. it's fuel pump sensor (both sides). I haven't had time managing to fix this. I'll giving it a couple days/weeks and see if it goes away. I have a feeling that it's related to cold temperature.

if it's not fixed by itself, I'll replace the sensor. the sensor should be accessible after you remove the rear seats. shouldn't be a bad diy job. I would disconnect battery and put away everything that could ignite when working on it.