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