Radio and Turn Signal Audio Anomoly

[UsualSuspect]

Last night I am driving, go to make a left hand turn, used the turn signal, heard it through the drivers side speaker. About 10 seconds later the audio for everything, including the turn signal muted for about 5-6 seconds, then unmuted and worked fine. Around 30 minutes later, staring at a red light and traffic, the right turn signal was on, the radio was playing, then it all muted. this time I looked around and everything appeared normal and working, but it obviously wasn't, no sound for about 20 seconds, then the turn signal and radio audio came back on. I had my mechanic take a look this morning, no codes set, everything passes diagnostics.

 

[StephenPT]

There's radio software update available that is supposed to address audio cutting in and out. Y171 is the software version - here's the TSB. https://static.nhtsa.gov/odi/tsbs/2023/MC-10246261-0001.pdf

GM seems to have paused OTA updates, at least on the SUVs. I haven't seen an update come through via OTA since last August. I wish they would push this version via OTA, but for now it seems to be a dealer only update.

 

[Micahsd]

There's radio software update available that is supposed to address audio cutting in and out. Y171 is the software version - here's the TSB. https://static.nhtsa.gov/odi/tsbs/2023/MC-10246261-0001.pdf

GM seems to have paused OTA updates, at least on the SUVs. I haven't seen an update come through via OTA since last August. I wish they would push this version via OTA, but for now it seems to be a dealer only update.

Just curious…do you know if that update exists for the 2021 model year Tahoe?

Mine’s been doing that for awhile and they’ve applied a few updates to my system.

 

[StephenPT]

Just curious…do you know if that update exists for the 2021 model year Tahoe?

Mine’s been doing that for awhile and they’ve applied a few updates to my system.

Sorry, I don't. I just keep track of the TSBs that impact my '22 with the Google based infotainment. '21 is, as you know, a totally different radio interface.

You can browse through the TSBs on the NHTSA.gov website and maybe you'll find one similar that applies to yours? https://www.nhtsa.gov/vehicle/2021/CHEVROLET/TAHOE/SUV/4WD#manufacturerCommunications

 

[UsualSuspect]

The Y171 update was applied already, but my mechanic said there is yet another TSB for the issue GM is still working on trying to resolve. https://static.nhtsa.gov/odi/tsbs/2024/MC-10249982-9999.pdf

 

[gbirk7]

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.

 

[15burban]

Traded my 21 xl AT4 for Silverado LTZ crew

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.

I can you went from a coil spring independent rear suspension to a leaf spring solid rear axle. There's going to be a big difference in ride.

 

[UsualSuspect]

Today was the day, a new update was done. Hopefully this is the fix. I rarely drive it, the wife does 95% of the time. I get in it, went to lunch, and I noticed the Lane Keep Assist was displaying, the seat wasn't vibrating, nor were there any beeps. Called the wife, she hadn't noticed it, so no idea when it quit working. They said they applied 3 updates, so I should be good to go. Time will tell on the radio if the audio issue was fixed, but I thought the Lane Keep Assist works like my 2500 Denali does, the seat vibrates or there is a chime on the side that needs to be steered away from, but I noticed the Yukon only has the green lane lines, I went over the fog line, the correct lane line turned yellow, but there was no alert of any kind. Now to scour the owners manual and see if it should be doing more than changing the line colors.

 

[WalleyeMikeIII]

Today was the day, a new update was done. Hopefully this is the fix. I rarely drive it, the wife does 95% of the time. I get in it, went to lunch, and I noticed the Lane Keep Assist was displaying, the seat wasn't vibrating, nor were there any beeps. Called the wife, she hadn't noticed it, so no idea when it quit working. They said they applied 3 updates, so I should be good to go. Time will tell on the radio if the audio issue was fixed, but I thought the Lane Keep Assist works like my 2500 Denali does, the seat vibrates or there is a chime on the side that needs to be steered away from, but I noticed the Yukon only has the green lane lines, I went over the fog line, the correct lane line turned yellow, but there was no alert of any kind. Now to scour the owners manual and see if it should be doing more than changing the line colors.

Might check in the settings on the infotainment to make sure the safety alert seat is enabled

 

[UsualSuspect]

Might check in the settings on the infotainment to make sure the safety alert seat is enabled

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.

 

[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.