Kent Dillin

So quick update. I took it back in today and they replace my tuner. Guess what? Works better than any other SiriusXM radio I've had. I haven't been able to get it to cut out. I would still argue that the factory antenna is weak because my after-market antenna shouldn't have fixed the problem if the tuner was the ONLY issue but regardless I'm happy. So, if you are having this issue as them to replace the tuner first and then the antenna.

I just got this message from GMC after I ranted on the phone at this poor Christian guy this morning. I am very much not done with this yet. I feel like I'm orbiting the earth with a Flat Earther, showing them the curvature of the Earth and they are just going "Nope, Nope, I don't see it." I'll spare you guys my response to this message.

That's a good point. Had not thought of it from SiriusXM's perspective but that might be because I've had Sirius/SiriusXM for so long I knew how it should work and never considered it was anything but an issue with the truck. One thing I am considering trying is going to test drive an F-150 and driving it around town to see if it's better or not. If so then my next video can be of my GMC vs a Ford Satellite Radio Reception comparison.

I ran it through the dash and it's right behind the normal antenna on the Passenger Side Fender. It's just the old antenna that I got in 2005 with my very first Sirius Kit my wife bought for my truck. I made another video that I haven't uploaded to youtube of me driving through an area where it is cutting out constantly and then I switch antennas to the aftermarket and it works perfectly. Basically, the same as above just a lot more driving. Initially, the dealership tried to argue it wasn't GM's problem and that it was just bad reception in town. They attempted to convince me by telling me they took trucks like mine out and got the same result. I told them that the only confirmed my suspicion that this is a much bigger issue affecting a lot of trucks. Once I showed them this video and reminded them that I've had 4 factory Sirius XM equipped GM vehicles and this in the only one that did it they were more helpful. IMO my dealer did what they could and replaced the original antenna. I have since gone directly to GMC but so far, I'm getting nothing but "Customer Service" talk. Lot's of apologies and no action. They want me to take it back to the dealer and tell them to fix it. I've nicely and NOT so nicely explained to them the dealer has already done what they can. I think they really just don't want to admit it is on their end because then they are going to have a very wide spread issue. I have also requested to speak directly to engineering. I am also an engineer and would love for someone at GM to tell me why I am wrong in face of all the evidence I've presented.

It's GM's problem but they are trying to blame the signal with me as well. I can switch to an aftermarket antenna and it works perfectly. I've also had a 2008 Avalanche, a 2015 Acadia and a 2017 Acadia that have no issue. Only my 2017 Sierra Denali cuts out.