Car wont shift to 3rd gear

This problem started at the beginning of this winter. So I started to idle for 2 mins and the car was shifting without an issue.

However, now it is completely stuck and wont shift to 3rd gear even if I drive for 15 mins at 60mph. Please advise.

Information request: year and make of vehicle-mileage- type of transmission-service history-how do you know it is stuck in third gear?

My Grand Prix did that. But, I could accelerate to 50 or so and let off gas and t would shift into 4th. Trans tech said noway it would hit 4th with a bad 3rd gear. But it did. Put in a used trans and all is well.

@vic555
While We Wait For Make, Model, Model-Year…
Has The CEL (Check Engine Light) Come On?
Any Message About Engine Operating At Reduced Power?
CSA