What should I do if my Ford Fiesta's transmission is slipping?

I've noticed that my Ford Fiesta's transmission is slipping when I'm driving. It's an automatic and I've had it for about a year. What could be causing this and what steps can I take to fix it?

First, check the transmission fluid level and make sure it's at the appropriate level. If it's low, you may need to top it off or there could be a leak. If the fluid level is fine, then the issue may be with the transmission itself.

Another possible cause could be a clogged transmission filter. Over time, debris can build up and block the flow of fluid, causing the transmission to slip. It's a good idea to have the filter replaced regularly as part of your vehicle's maintenance.

If neither of those things seem to be the issue, there may be a problem with the transmission solenoid or valve body. These can be more complex to fix and you may need to take your car to a mechanic.