FORD 2013 Fiesta v.1 - Manual (Page 170)

5. Disconnect the negative (black) cable from the battery. (The door
key [inside the Intelligent Access Key] is needed to lock/unlock doors
when the battery cable is disconnected. Also, the anti-theft system is
disabled until the battery cable is reconnected.) Refer to Battery in
the Maintenance and Specifications chapter when disconnecting
and reconnecting the battery cable.
• The maximum towing speed is 70 mph (113 km/h).
• There is no limitation on towing distance.
When done towing, start the engine within 15 minutes of reconnecting
the battery cable. When reconnecting that cable, tighten it until it’s snug
against the terminal; be careful not to overtighten.
170 Towing
2013 Fiesta (fie)
Owners Guide gf, 1st Printing
USA (fus)