Ride Control light comes on, after a few miles, it goes out. Minus 11 degrees.

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My tire pressure monitor light came on, also, and stays on. Tire pressure is fine. Is the cold weather affecting sensors ? Just had fuel pump in tank replaced . During warm weather tire light goes out. I do not have a block heater (Calif. truck), now in Minnesota (4 yrs.). Truck has 207,000+ miles. First time I've been stranded as I bought it new .