maximum startup volume settings

[billa355]

When I set "maximum start-up volume" to a good level, it will hold for a couple of starts.  then it reverts to a very loud start-up volume.  Radio blasts loudly until we turn it down.  Reset maximum start-up volume repeatedly but will not hold.  always reverts to loud start up volume.  service department has not heard this problem, but a friend with a 2021 silverado has the same problem, exactly.

[wb5rag]

my friend has the same problem with his 2021 silverado.   as opposed to my problem where it would revert to 0 and to add these issues mine would not hold equalizer settings and auto volume rise as the vehicle increased in speed.  none would hold where i set them.  i continued to complain to the guy who sold me the truck and FINALLY he suggested bringing it in and they could re-flash something.  i suggest taking to the dealer and having them re-flash the card or chip or whatever it was.  in the meantime i will be writing my salesman to see if he can give me a nitty-gritty fix they did.  good luck

 

[wb5rag]

mine has the 8" screen if that makes any difference.

[RWHobert]

Same issue here - I cannot set the max startup volume on my new 2021 Silverado. It always resets to mid volume, which is startlingly loud. So now I have two after-start procedures - radio volume down, and Auto Stop off. Also, the backup camera display lines are too dim to be useful. I've found no adjustment for that. I think GM is way behind in user friendly  technology.