today i got in my truck and went to turn off my radio and noticed my volume knob wasnt working is also turns it on and off so kinda need it.. my truck is still under warranty and my booklet says bumper to bumper..does that include the cd player?
Bumper to bumper is suppose to mean everything but usually there are limits via mileage or monthly time periods etc , so if it doesn't say anything regarding restrictions etc then yes it's suppose to be covered.
Hope this helps and best of luck.By the way the best way to find out for sure is call up the dealership, but again bumper to bumper means all of the vehicle head to toe so to speak.
First thing I would do is check the settings, I believe the volume knob also changes the bass, treble, balance, etc. But if it is actually the radio malfunctioning then call the dealer and check your warranty paper work.