It sounds like its a low speed issue where High assistance is being provided. Most occurances posted also indicate soon after starting up, which may indicate that at startup there may be some tension in the steering system.
In the Parts lookup, there are 2 different racks for the 16" wheels. There are steering racks for each specific wheel offered by ford. That's some strangely specific engineering, but does make it likely to have problems in some and not other models.
The steering racks are therefore the likely issue since the other systems are not unique to the SE 16" equipped models that are being reported. (How is that Aussie model equipped?) That may be a build/batch issue for those racks and not a design issue, which our Aussie friends experience supports.
Ford will want to make sure that this problem can be resolved and if they need to go back to the supplier for action, they'll need good data.
An owner with this problem might, instead of leaving directly from the dealership, take a low speed tour of the lot. I think the low speed, constant tight turning may bring the error back up. And if you can, don't turn off the car.
Document every occurance, and as instructed by the owners manual, take it to your dealer. Remind the dealer that you are following the manufacturers instructions by bringing it to the dealer to resolve the error. (See page 272 of the owners manual.)
(Keep Noemi "FordCustomerService" updated.)