General Motors has released a Service Bulletin for certain units of the Chevy Silverado HD due to a problem regarding engine stalling.
Tagged with Bulletin Number 23-NA-152, select 2024 Silverado 2500 HD and 2024 Silverado 3500 HD units equipped with the Duramax turbodiesel 6.6L V8 L5P may have an problem where the heavy-duty pickup truck is stalling. Upon the onset of this condition, customers may notice that the Malfunction Indicator Lamp (MIL) is illuminated, and that the Engine Control Module (ECM) may have one of 10 Diagnostic Trouble Codes (DTCs) saved.
This inconvenience is believed to be due to an anomaly in the truck’s software. As such, certified GM technicians are instructed to inspect affected vehicles and update the ECM / TCM with GM’s latest calibration. After this procedure is completed, techs are to perform a barometric pressure reset in GDS2.
Notably, it should take roughly 30 minutes to complete this fix. In addition, this Service Bulletin covers pickups across the globe, including North America, the Middle East, Israel, Palestine, and Australia / New Zealand.
As a reminder, the 2024 Chevy Silverado HD is powered by the naturally aspirated 6.6L V8 L8T gasoline engine, rated at 401 horsepower and 464 pound-feet of torque, as standard fare. Meanwhile, the aforementioned 6.6L L5P engine, uprated for the 2024 model year to 470 horsepower and 975 pound-feet of torque, is optional. No matter the engine choice, both powerplants feature the Allison-branded 10-speed automatic.
In regard to structure, the Chevy Silverado HD rides on a more-capable variant of the GM T1 platform, which it shares with its corporate platform-mate, the 2024 GMC Sierra HD. Production kicked off in March 2023 at the GM Flint plant in Michigan, and a few weeks later at the GM Oshawa plant in Canada.
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Comments
When is the L5P engine available for the 2500HD models?
Is it a better engine or just different specs?
Let’s get back to basics, GM’s engine control electronics are getting so complicated that they can’t even make them run!
It’s been available in the 2500HD since 2017. The L5P in MY 2024 was refreshed which gave it a boosted power rating.
Not much hope for GM’s software issues when “authority” can’t stop their website/pop-up ads from jumping around like a wet cat with Parkinson’s .
Find new roads to the Mechanic.
Tesla started providing over the air updates back in 2012. Twelve years later, 95% of GM vehicles still do not have this capability, forcing owners to drive to the dealer and leave the vehicle for who knows how long just to get a software update. Absolutely ridiculous.
ah yes the amazing OTA updates that brick and drain your battery. and your car is always calling home for that extra sense of spyware
teslas are banned from many places because they are a literal spytrap.
This is totally poor quality control. No excuse GM.
Does anyone know if Silverado HDs that are sold in all of those countries are built in Flint Michigan and/or Oshawa Ontario?