I have two 2011,the volume preset,should be when the radio is on,Press and hold the left knob and either wait for the words,Clock set up or Initial volume to come on the screen,without checking I'm sure clock setup comes on the screen first,then you have to use the right knob to select initial volume,you then set the volume to the required and then Must push the left knob again until you hear the beep to set it.
as for the clock,mine j=runs maybe three four minutes a month,I just keep restting it when it annoys me,which isn't often,at least I'm either running early or if I'm late by the car clock,I'm really on time.
When I did complain about mine,at both the dealer I bought it from and another dealer which used to do my services,they both just said "Oh! they're not precision time pieces,some do run slightly fast or slow"in other words unless there was a major malfunction of the radio they weren't interested in changing them.
