The car is a gas guzzler and I thought that 2WD would save more gas. I switched the center switch down. Then I tried pushing the WD button and then pressing the center switch up again. The 4WD lights and the other two next to it kept blinking. The manual said that if it was 2WD, the lights would shut off. I tried restarting the car, but the lights don't stop. What do I do? I don't want to have to pay for more gas.