My radio is stuck on dim and I can't change channels. Shawn November 15, 2016 20:17 Move the dim switch to the center position and it will change channels like normal. Related articles How do I know if a radio is still under warranty? Radio is transmitting on its own at all times. Change radio display to show volts? How do I warranty repair a 955 hpc? Comments 0 comments Article is closed for comments.