OTA update - Am I the last in line?

[steve841]

GM is an absolute joke at updates.

 

Take it to the dealer.  This last one for the 2020's is needed.  Had my truck die due to dead battery.  This update was the fix.

[Azblktl]

Mine updated successfully finally. I guess it needed a trip to Home Depot to work!


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[SPASierra]

This is still just for the 2020 models correct?  I haven't driven my truck in about a week and a half, but I know I haven't received any updates.  I might have somewhere to go this weekend, but until then it sits while I work.

[Azblktl]

That I am not sure about, mine is a 2020


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[RWTJR]

1 hour ago, SPASierra said:

This is still just for the 2020 models correct?  I haven't driven my truck in about a week and a half, but I know I haven't received any updates.  I might have somewhere to go this weekend, but until then it sits while I work.

YES , 2020 only (for now).

 

The models listed below:

 

Technical Service Bulletin: #20-NA-199
Release Date: 11/9/2020

TSB #20-NA-199 Applies To These 2020 Model Year Vehicles

• Buick Enclave
• Buick Encore GX
• Buick Verano
• Cadillac CT6 (China ONLY)
• Cadillac XT4
• Cadillac XT5
• Cadillac XT6
• Chevrolet Blazer
• Chevrolet Camaro
• Chevrolet Cruze
• Chevrolet Silverado 1500 / 2500HD / 3500HD
• Chevrolet TrailBlazer
• GMC Acadia
• GMC Sierra 1500 / 2500HD / 3500HD

With The Following Infotainment System RPO Codes

• IOS
• IOT
• IOU

[Rob Mugs]

EDIT:

 

Latest build from article:

Edited January 15, 2021 by Rob Mugs

[Rob Mugs]

On 1/13/2021 at 2:52 PM, steve841 said:

GM is an absolute joke at updates.

 

Take it to the dealer.  This last one for the 2020's is needed.  Had my truck die due to dead battery.  This update was the fix.

I don't see battery drain listed on the TSB

 

https://static.nhtsa.gov/odi/tsbs/2020/MC-10181722-9999.pdf

[Booger T]

53 minutes ago, Rob Mugs said:

I don't see battery drain listed on the TSB

Look on page 2 under display.

[Rob Mugs]

45 minutes ago, Booger T said:

Look on page 2 under display.

I stand corrected

[Booger T]

No problem, only reason that I really looked at the TSB was that I experienced a dead battery about a month ago. Prior to this my wi fi had quit working and on star had tried doing an update numerous times to no avail. After getting vehicle started from having the dead battery the wi fi started working. Not sure what the issue was but dealer charged battery and tested it and said that battery was good. Have not had any issues since other than xm will sometimes show no signal trying to connect. Have been getting a failed to download message on occasion after starting vehicle, all it show is wi fi, just looked at my build # and it says U148.3.4 and a date of Sept 19, says no other updates available.  I guess I am going to have to take it to dealer to get it updated.

[shanemoon]

Make sure you have an IOS, IOT or IOU radio. Most LT's and below are IOR, which did not get the update.

[BigMick2023]

16 hours ago, shanemoon said:

Make sure you have an IOS, IOT or IOU radio. Most LT's and below are IOR, which did not get the update.

How do I know which radio I have?

[shanemoon]

1 hour ago, BigMick2020 said:

How do I know which radio I have?

scan the RPO codes QR code in your driver door jamb. It’ll list off all the RPO codes for your truck. In there you’ll see one of the 4 radio codes. 

[RWTJR]

FYI, I have the IOS  infotainment system, this is what my screen says after the update:

 

[Rob Mugs]

52 minutes ago, shanemoon said:

scan the RPO codes QR code in your driver door jamb. It’ll list off all the RPO codes for your truck. In there you’ll see one of the 4 radio codes. 

 

2 hours ago, BigMick2020 said:

How do I know which radio I have?

IOR is the 7" screen so won't get this update.  An even easier way to check is "is it 7" or 8" diagonal?"  I don't "think" the LT could be optioned with it.  

Edited January 16, 2021 by Rob Mugs