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TNAT4

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About TNAT4

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  1. I'm not sure of my version, will need to check. I have a 2020 AT4. NavTV people said they haven't had a chance to update everything, said it was the NAVTV unit though rather than the GM software. They recommended my installer put in the rocker switch for a reset and that is a work around. Before that was installed there was no sound and no fix without going back to the installer.
  2. It randomly shuts off, no sounds comes from the system at all including blinkers/door chimes. My installer put a switch under the dash that basically is a reset button to make it work again. I got an update that made that happen less often but it still happens at times. Also sometimes has a crackle from the speakers but not always...reset fixes that too. If you adjust the sound settings on the headunit, they don't do what they're supposed to do. Midrange adjustment is basically like a gain for the whole system. Bass does nothing. There's supposedly another update coming but I'm guessing it will be a while with the COVID-19 pandemic.
  3. My installer was told they'd have an update within 2 weeks or so. They told him they need to get a 2020 truck in there to "play" with in order to figure out the software update. Let me know if the DC Offset is a true solution because something tells me it will take them longer than 2 weeks to get the software update and its annoying having to hit the toggle button and wait for a bootup every couple days.
  4. So thought I’d post this here to let you guys know about a problem with the NavTv. I have a 2020 AT4 and just had a new sound system installed. I had factory Bose replaced with NavTv, Audison 5.9 bit 5ch amp with built in DSP, pushing Hertz speakers throughout with a Illusion Carbon 10” sub. Sounds great, except there’s a software problem with the NavTv. It randomly shuts off all sound from the head unit, including door chimes and blinker. Once it’s off the unit (NavTv) has to be reset to get sound back. Turning the truck off does not fix it when started back up. Short term fix is a toggle switch my installer put under my dash until the next software update to correct the problem. He called NavTv and they expect a software update to roll out in a few weeks to correct the problem.
  5. Yes, they do. The cameras are on the base that attached to the truck and my truck has the 360 view. I've been asking around trying to find out if they're plug n play with the smaller mirrors that have all the same features. It looks like they are plug n play but might possibly require reprogramming. I'm getting conflicting info on this, waiting on my dealer to find out from GMC.
  6. Thought I’d post this here since this thread seems appropriate. I have a 2020 AT4, fully loaded and it came with the trailering mirrors. The thing is, I’d rather have the non-trailering mirrors because I don’t do a lot of towing and the blind spot mentioned above is bothersome for me. I checked with the dealership but there’s no easy way to order the other mirrors because I’d need the standard harness rather than the trailering mirror harness. So I’m looking to trade with someone. No extra cost, just even swap. Mine have the chrome caps, power fold, puddle lights, etc just as described above. I’d want the “fully loaded” smaller mirrors in return, including the harness to make them work. Anyone interested? BTW thanks for this post, will be very helpful if I’m able to find someone willing to swap.
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