XM Radio Isse

JimCost2014 · December 6, 2020

42 minutes ago, johnnymordoc said:

I have a 2014 GMC Sierra 1500 and mine just started doing it - today it was cutting in and out - figured it may be the satellite ?

I am in Northern California - San Francisco Bay Area.

Any thoughts?

On 11/27/2020 at 4:14 AM, jammy54 said:

1 fast ss: How did you resolve your issue? I have the same problem with my 2014 Sierra. XM worked fine for 6 years. In the last few weeks, I have been getting "No XM Signal Reception may be blocked". However, the raadio does work occasionally for 3-5 minutes, so I wonder if it is just a loose antenna cable. The AM/FM radios work fine.

Since you both have 14 models with the "Shark Fin's" that were the leakers, and had a tendency to rust, wonder if they both are failing. The newer generation has a different seal and connections, that don't seem to leak or have problems.

jammy54 · December 7, 2020

Thanks, JimCost2014:

Not sure what radios the antenna in the shark fin serves, but my AM/FM radio is working just fine. Do you know if that means anything about the shark fin and the XM not working?

BTW, thanks to YouTube, I opened up the radio compartment and checked all cable connections. no problems there. While doing this, I discovered that the XM module in my 2014 Sierra is located behind the screen and above the AM/FM radio, NOT next to the glove compartment as claimed by several YT videos.

JimCost2014 · December 8, 2020

15 hours ago, jammy54 said:

Thanks, JimCost2014:

Not sure what radios the antenna in the shark fin serves, but my AM/FM radio is working just fine. Do you know if that means anything about the shark fin and the XM not working?

BTW, thanks to YouTube, I opened up the radio compartment and checked all cable connections. no problems there. While doing this, I discovered that the XM module in my 2014 Sierra is located behind the screen and above the AM/FM radio, NOT next to the glove compartment as claimed by several YT videos.

You are very welcome.

XM/Sirius and On Star, and I believe maybe for HD radio. The 1940's antennae on our fender is still for AM/FM radio.

Karcrazy · January 9, 2021

I have this too. I bought my 2014 Silverado from my dad who didn’t use it for much except an occasional trip on hobbies and to move his pontoon. Only had 38000 miles on it when i bought it in June. My Girlfriend gave me XM for Father’s Day of this year and it worked great till last week. I did the whole thing with XM over the phone and nothing worked. Still reads no reception, signal may be blocked. Dad never had XM on it because he doesn’t believe in paying for that. So the XM has hardly been used although I’m sure the XM module was on everytime he drove the truck. So, i guess ill have to troubleshoot once it warms up and i can work outside without freezing my butt off. Till then, its regular radio or my Echo Auto from Amazon which works very well.

maryk · January 29, 2021

My husband and I also have a 14 Silverado. Have started having issues with the XM radio (first), then the compass "stuck" on NORTH, now the red light for the OnStar.

According to OnStar, (last year) truck was in the water off the shore of Newark NJ. Just last week, called OnStar again and was told we were in Palisades NY on I-90 (Nope - in RI at the time!)

Took to the dealer (last fall), paid the $199 to have it "diagnosed". They told us the antenna (shark fin) was no good. OnStar ran a diagnostic when we called (last week) from the vehicle and said there was a "trouble code" and we should take it to the dealer.

Have done a bunch of research since then and found there was a "recall" (technical service bulletin) issued for the shark fin antenna on the 2015-18s. Unfortunately, it doesn't include the 2014s.

It seems the "fix" is to replace a poorly designed antenna. Fairly straight-forward (I won't call it "easy"). Remove the drivers side visor and grab handle, loosen the (left side of windshield) trim panel and headliner. One bolt holds it in place. Clean the area, apply a bead of caulking around the hole in the roof, and re-attach everything.

The challenge seems to be getting the new antenna.

Hope this helps!

Ken Sp · February 22, 2021

Did anyone ever get this problem resolved . I have 2016 Sierra. Saying reception is blocked not getting preview channels. Had Sirius try to refresh twice.

jackmc · January 11, 2023

I had this problem today on my 2017 Silverado. Went thru the power cycle with XM cust. svc. to no avail. I waited approx. 30 minutes, then tried it again and it finally came on. you WILL have to send a refresh signal. You can call XM and have them do it or you can do it online. The procedure is listed in one of the previous posts, above. Good luck!

MikeBMW · January 14, 2023

On 1/11/2023 at 2:34 PM, jackmc said:

I had this problem today on my 2017 Silverado. Went thru the power cycle with XM cust. svc. to no avail. I waited approx. 30 minutes, then tried it again and it finally came on. you WILL have to send a refresh signal. You can call XM and have them do it or you can do it online. The procedure is listed in one of the previous posts, above. Good luck!

I had to have a refresh sent to activate my Gen V Linkswell after removing the stock radio.
It worked rather quickly.
I suppose when I put the stock radio back in, I'll have to do it again.
Fairly effortless but this step needs to be done on occasion.

WiscoGuy · February 17, 2023

Has this been resolved yet? If so, what was the issue and how was it resolved? I have a 2015 GMC Yukon Denali with the same issue and I cannot seem to find the resolution anywhere!

MikeBMW · February 18, 2023

8 hours ago, WiscoGuy said:

Has this been resolved yet? If so, what was the issue and how was it resolved? I have a 2015 GMC Yukon Denali with the same issue and I cannot seem to find the resolution anywhere!

From the posts above, it seems a call or an online request to refresh your XM subscription on your radio is necessary.
My experience and it appears from the previous posts to be so, as well.

Flying42 · January 17, 2025

My XM radio quit with this same message. The XM tech support told me I had to replace my satellite/GPS antenna. Purchased from Amazon and watched a U tube video. About 2 hours later, I’m jamming to my XM again. My cost was less the $100

Edited January 17, 2025 by Flying42