The spare tire could have been damaged when it was installed on the rim.
The damage can cause the tire to lose air pressure rapidly or detach from the wheel, increasing the risk of a crash.
What to do
Ford will notify owners, and dealers will replace the spare tire, free of charge.
The recall was expected to begin January 13, 2020.
Owners may contact Ford customer service at (866) 436-7332. Ford's number for this recall is 19S55.