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For the 2009 Ford F-150, the recommended tire pressure is 55 psi with tire size LT225/75R16/E and wheel size 18 inches. Resetting the TPMS after installing new tires isn't difficult. First, ensure the vehicle is parked on level ground. Check the tire pressure of each tire to ensure it matches the correct psi indicated on the tire's side. To reset the TPMS, turn the car's power on (without starting the engine) and locate the TPMS button near the steering wheel. Press and hold the button until it starts blinking. Let the car sit for about 20 minutes for recalibration. Once the blinking stops, turn off and then restart the car to confirm that the reset was successful.
The 2009 Ford F-150's front tires should be inflated to 55 psi, while the rear tires should be at 80 psi. The front tires are LT225/75R16/E, and the rear tires are of the same size. This model comes with standard 16-inch silver aluminum wheels.