Radio and Turn Signal Audio Anomoly

[WalleyeMikeIII]

First thing I checked, it is enabled, also noticed it doesn't try and gently nudge the steering wheel either. I always like when updates don't work as they should, or break something else. I could understand the lack of testing prior to release if there were variables GM didn't control that are on vehicles GM doesn't have access to. Unfortunately if you run stock, and this occurs, it speaks volumes about the QC and testing of updates.

Oh, trust me, this code update process is messy.
Are you sure Lane Keep Assist is enabled now (Buttons on the dash left of the steering wheel) and Green Lines in the Instrument Cluster/HUD if you have one? (sorry for asking obvious questions...but would hate to have you missing these if was just a simple thing like the update turned off the lane keep assist, parking assist, etc)

 

[UsualSuspect]

Oh, trust me, this code update process is messy.
Are you sure Lane Keep Assist is enabled now (Buttons on the dash left of the steering wheel) and Green Lines in the Instrument Cluster/HUD if you have one? (sorry for asking obvious questions...but would hate to have you missing these if was just a simple thing like the update turned off the lane keep assist, parking assist, etc)

The lane lines stopped working as well, the updates at least I have green lane lines, but they don't turn yellow anymore, nor do they disappear when there are no lane lines, they are green all the time. It went in this morning, there are no codes, everything passes diagnostics, but they test drove it and agree it isn't working, it just green lines. They also noted Super Cruise still works, they said likely because the ECM doesn't know the LKA isn't working. They uploaded a bunch of logs and are awaiting GM to get back with them on next steps.

 

[18Denali]

Traded my 21 xl AT4 for Silverado LTZ crew. I miss my Yukon! I am having the radio issue on My new Silverado. Not only does the sound go out on my radio and Turn signals, but it also goes out on my parking sensors and i still have to test rear for cross traffic. I think the problem is with the amplifier based on a sheet left in my truck from dealer. see attached, side note, I can't believe the difference in ride without the Magnetic Ride control. I feel everything in the road now. won't buy again without it.

Did you ever find a solution to this? I have similar audio issues with my 2023 Tahoe. All audio (radio, streaming, turn signals, etc) can drop but usually only for a second at a time. Could happen a dozen times on a single 10 minute drive or sometimes not at all. Dealer hasn’t solved it yet despite making all the available infotainment updates. Thanks.