Voltage gauge not working.

[Charlie1961]

While driving yesterday, I noticed gauge on dash had moved toward lower place than it had been. Checked it this morning and it's all the way down on the low side. voltage on info screen shows 14 volts. Truck starts etc.
Any ideas?

 

[kapinallinen2]

While driving yesterday, I noticed gauge on dash had moved toward lower place than it had been. Checked it this morning and it's all the way down on the low side. voltage on info screen shows 14 volts. Truck starts etc.
Any ideas?

That`s a new one, following.