Dealer Software Update Req’d ‘23 CT4VBW

[lantz]

Just got a notice dated October 2024 that my BW needs a dealer software update. Anyone know what this is for?

 

[1Evil55]

+1
The letter gives no details. I was just in the shop a few weeks ago and would have expected the update to have been completed then.

 

[Bulletbling]

Just got the same letter in the mail for my 2023 CT4-V BW.

Possibly this?

https://static.nhtsa.gov/odi/tsbs/2024/MC-11007678-0001.pdf

GM Program #N242435630
Released 9/18/2024

Description
Certain model years and vehicle makes noted in the table above may have a condition where the battery is at risk for a drain following an over-the-air update.

Repair Description
Dealers are to reprogram the serial data gateway module.

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[BW56M]

Received the same letter regarding my 2024 BW5. I was at my preferred dealer for an oil change about three weeks ago and they wanted to perform said update while I was there. Their Blackwing specialist had quit a few days before my scheduled appointment and hadn't been replaced by a trained Blackwing technician. I refused both the oil change and update. This dealership just changed ownership and is in turmoil. A number of people left and I wasn't going to trust my car to just anybody. I'll be looking for a new preferred dealer.

 

[RKS]

Received the same letter regarding my 2024 BW5. I was at my preferred dealer for an oil change about three weeks ago and they wanted to perform said update while I was there. Their Blackwing specialist had quit a few days before my scheduled appointment and hadn't been replaced by a trained Blackwing technician. I refused both the oil change and update. This dealership just changed ownership and is in turmoil. A number of people left and I wasn't going to trust my car to just anybody. I'll be looking for a new preferred dealer.

My dealership (SW OH) is just a general GMC dealer. I had them do an oil change and the update at the same time and everything was completed within a few hours without issue. The techs were all really surprised I let my 18 yo drive it there for service.

 

[krgoodwin]

Serial Data Gateway Module Software Update N242435630-03 was performed at the dealer as required for my 2023 CT5-V. Problem: the update changed the RADIO ID which cratered my SirusXM since the RADIO ID on my account did not match the "new" Radio ID after the update. All I could get on SirusXM was a request to subscribe. I read the entire 5 page details from GM associated with this update and didn't see any warning as to reconfiguring the radio. A SirusXM refresh signal (standard Sirus response) did not correct the problem but Sirus technical support was able to change the Radio ID on my account. Be aware that Sirus starts out saying they have to charge ($15 ??) for changing the account's Radio ID. I told Sirus that was a non-starter and they easily relented.