Q: Wrench light came on stayed on driving on snow. on 2008 Ford Fusion

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
had the car since Aug 2008. Driving into work this morning
the wrench light came on, stayed on.Driving home no problem.
This has never happened before.
(1) Answer
The wrench light indicates an issue with either the transmission controls or all wheel drive controls, if you have them. A diagnosis must be performed to determine what is at fault.