OTA “Recall” N242452130 – what is it really?

[Probity]

2024 Silverado 1500 WT CCSB with 2.7 Turbomax. Hadn’t driven in about a week, hopped in yesterday, got my first “Important GM Recall N242452130 is available to install” message. This was my first experience with an OTA software install. I associate a ‘recall’ with a safety issue (as opposed to a customer service program thing or technical service bulletin or whatever else GM calls their various communications). It was definitely called a Recall not a CSP or TBS or whatever.

 

Anyway, at the time had no idea what this “recall” was about but decided what the hell, I’ll install it. Said it would take about 15 minutes, actual time from start to finish was only about 6 minutes. Told me to shut the engine down, and software install done with ignition off. No issues with install I’m aware of.

 

So then I tried to figure out what the “recall” was about. Checked NHTSB site – nada. Checked the Manufacturers Communications (all 525 of them) for my year/make/model – nada. Web-searched “GM N242452130” and the only thing I found was on a Colorado forum from a few days ago (called a Service Update in the doc posted, not a Recall, but the poster’s screen message also said it was a recall).

 

I know some ’23 Colorados/Silverados with the 2.7 got an “Emission Recall” calling for replacing all 4 fuel injectors. A very limited population of affected vehicles (272).

https://static.nhtsa.gov/odi/tsbs/2024/MC-10248331-0001.pdf

 

I found nothing similar for ’24 Colorados/Silverados with the 2.7 where it called for actually replacing the fuel injectors. The OTA I installed yesterday just supposedly reprogrammed the ECM.

 

Anyway, anybody able to shed more light on what this is? Emissions-only related or something else?

[silveradosid]

just like tuners, GM has figured out a new tune for the engine so that they don't have to replace the injectors