Originally Posted by wtrlogd

I had my dealer set all 4 positions to the minimum setting, believe he said 50psi was as low as the IDS software would let him set the BCM settings to. I haven't rotated tires yet, hopefully, he did what he said he did, and I'll be able to avoid the training process when I do rotate. With the empty truck I've been running 65psi front and 55psi rear, no idiot light on the dash.

Originally Posted by Champ198

The same thing happened to me a while back. You will need to run the TPMS reset procedure as outlined in the manual. It's not hard but you have to run around to each tire and release air as per the procedure. You should be fine after that. (I copied and pasted the procedure from the manual)

TPMS reset procedure

The TPMS reset procedure needs to be performed after each tire
rotation on vehicles that require different recommended tire
pressures in the front tires as compared to the rear tires.

WARNING: To determine the required pressure(s) for your
vehicle, refer to the Safety Compliance Certification Label or
Tire Label located on the B-Pillar or the edge of the driver’s door. See
Vehicle loading - with and without a trailer in this chapter for more
information.

Overview

To provide the vehicle’s load carrying capability, some vehicles require
different recommended tire pressures in the front tires as compared to
the rear tires. The tire pressure monitoring system (TPMS) equipped on
these vehicles is designed to illuminate the low tire pressure warning
light at two different pressures; one for the front tires and one for the
rear tires.

Since tires need to be rotated to provide consistent performance and
maximum tire life, the tire pressure monitoring system needs to know
when the tires are rotated to determine which set of tires are on the
front and which are on the rear. With this information, the system can
detect and properly warn of low tire pressures.

TPMS reset tips:

• To reduce the chances of interference from another vehicle, the TPMS
reset procedure should be performed at least three feet (one meter)
away from another Ford Motor Company vehicle undergoing the TPMS
reset procedure at the same time.
• Do not wait more than two minutes between resetting each tire sensor
or the system will time-out and the entire procedure will have to be
repeated on all four wheels.
• A double horn chirp indicates the need to repeat the procedure.
Performing the TPMS reset procedure

It is recommended that you read the entire procedure before attempting.

1. Drive the vehicle above 20 mph (32 km/h) for at least two minutes
and then park in a safe location where you can easily get to all four tires
and have access to an air pump.
2. Place the ignition in the off position and keep the key in the ignition.
Tires, Wheels and Loading
3. Cycle the ignition to the on
position with the engine off.
4. Turn the hazard flashers on then
off three times. This must be
accomplished within 10 seconds.
If the reset mode has been entered successfully, the horn will sound
once, the TPMS indicator will flash and the message center (if
equipped) will display TRAIN LEFT FRONT TIRE. If this does not
occur, please try again starting at Step 2.
If after repeated attempts to enter the reset mode, the horn does not
sound, the TPMS indicator does not flash and the message center (if
equipped) does not display TRAIN LEFT FRONT TIRE, seek service
from your authorized dealer.
5. Train the TPMS sensors in the tires using the following TPMS reset
sequence starting with the left front tire in the following clockwise
order:
• Left front (Driver’s side front tire)
• Right front (Passenger’s side front tire)
• Right rear (Passenger’s side rear tire)
• Left rear (Driver’s side rear tire)
6. Remove the valve cap from the valve stem on the left front tire;
decrease the air pressure until the horn sounds.
Note: The single horn chirp confirms that the sensor identification code
has been learned by the module for this position. If a double horn is
heard, the reset procedure was unsuccessful, and must be repeated.
7. Remove the valve cap from the valve stem on the right front tire;
decrease the air pressure until the horn sounds.
Tires, Wheels and Loading
8. Remove the valve cap from the valve stem on the right rear tire;
decrease the air pressure until the horn sounds.
9. Remove the valve cap from the valve stem on the left rear tire;
decrease the air pressure until the horn sounds.
Training is complete after the horn sounds for the last tire trained
(driver’s side rear tire), the TPMS indicator stops flashing, and the
message center (if equipped) displays:
TRAINING COMPLETE.
10. Turn the ignition off. If two short horn beeps are heard, the reset
procedure was unsuccessful and must be repeated.
If after repeating the procedure and two short beeps are heard when the
ignition is turned to off, seek assistance from your authorized dealer.
11. Set all four tires to the recommended air pressure as indicated on
the Safety Compliance Certification Label or Tire Label located on the
B-Pillar or the edge of the driver’s door. See Vehicle loading - with and
without a trailer in this chapter for more information.