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Compass, Roadsigns & Navi Issues

gjrobinson68
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gjrobinson68 Enthusiast

gjrobinson68

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Hello,

 

I have a 2021 Sierra Denali that intermittently has issues with the compass, road signs, Navi and GMC App not working. It went completely out about 12 months into ownership with the GPS red crossed out circle, after multiple trips to the dealership they fixed it replacing the GPS module.  It worked okay for about 8 months and now it intermittently stops working, I get the CAL for the compass, road signs are blank, Nav freezes on the last location, no App connection.  Onstar can not connect to the vehicle and has asked me to take it to the dealership.

 

I am tired of the dealership hassle, thinking it might be the shark fin antenna.  Anyone have similar issues and what it took to fix it?

 

Thanks...

eppieguy Senior Enthusiast

eppieguy

Posted
Posted

I'm not 100% sure but I thought you need to have an active Onstar account for all of those functions to work, maybe that's the issue? 

gjrobinson68 Enthusiast

gjrobinson68

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Posted

Thanks 64BAwagon, my research has shown this to be a common issue on the '14 to '18 models. Curious to hear if anyone has experienced the same issue on the '19 and up trucks?  It is acting like what I think would happened if the antenna connection had corrosion issues and worked some of the time.  

macattack64 Enthusiast

macattack64

Posted
Posted

Well they are still having all the same issues in my 2024. I have even had the motor die 4 times and yes the auto off was turned off. Also have a relay clicking sound between the defrost ports and infotainment head unit. Been dealing with these issues starting with 3 miles on the truck.

GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
On 11/29/2023 at 1:37 PM, gjrobinson68 said:

Hello,

 

I have a 2021 Sierra Denali that intermittently has issues with the compass, road signs, Navi and GMC App not working. It went completely out about 12 months into ownership with the GPS red crossed out circle, after multiple trips to the dealership they fixed it replacing the GPS module.  It worked okay for about 8 months and now it intermittently stops working, I get the CAL for the compass, road signs are blank, Nav freezes on the last location, no App connection.  Onstar can not connect to the vehicle and has asked me to take it to the dealership.

 

I am tired of the dealership hassle, thinking it might be the shark fin antenna.  Anyone have similar issues and what it took to fix it?

 

Thanks...

This is certainly not what we like to hear, gjrobinson68.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2021 GMC Sierra's navigation system. To do so, please send an email to [email protected] with ATTN: gjrobinson68/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s Privacy Policy, please visit https://www.gm.com/privacy-statement.html. The information you provide may be monitored and recorded and is subject to the GM Privacy Statement.
 
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