The General has released a fix for certain units of the 2023 Chevy Silverado 1500, Â 2024 Chevy Silverado 1500, and 2021 through 2024 Chevy Suburban and Chevy Tahoe SUVs equipped with diesel engines, for an intermittent no-start condition that occurs after the Auto Stop feature activates.
The affected Chevy Silverado, Chevy Suburban, and Chevy Tahoe units are included in Service Update number N242441450, which instructs dealers to apply the fix to customer vehicles brought to the dealership as well as those in inventory.
Notably, this issue affects only Chevy Silverado, Suburban and Tahoe units sold in the state of California. The issue results in the truck or SUV not restarting after activation of Auto Stop, the fuel efficiency technology that switches off the engine when not needed, such as at a stoplight. The specific number of units affected is currently unclear.
The available fix for the affected Silverado, Suburban, and Tahoe vehicles requires no additional components. After verifying the vehicle’s involvement in the GM Global Warranty Management system, the dealership technicians should reprogram the Engine Control Module (ECM), a process requiring just under half an hour.
The fix is available free of charge through the New Vehicle Limited Warranty period. Affected units cannot be sold by the dealership until the update is completed.
Involved Chevy Silverado units are equipped with the 3.0L I6 LZ0 turbodiesel Duramax providing 305 horsepower and 495 pound-feet of torque, while Tahoe and Suburban units are motivated by the 3.0L I6 LM2 turbodiesel Duramax engine rated at 277 horsepower at 3,750 rpm and 460 pound-feet of torque at 1,500 rpm.
As a reminder, the Chevy Silverado rides on the GM T1 platform. Production of the Chevy Silverado 1500 takes place at the GM Fort Wayne plant in Indiana, the GM Silao plant in Mexico, and the GM Oshawa plant in Canada.
Meanwhile, the Suburban and Tahoe are underpinned by the GM T1 platform and are produced at the GM Arlington plant in Texas.
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Comments
Pretty worthless article, why not tell use exactly what they are changing in the ECM and why it only affects Commifornia.
Permanently deactivating it sounds like a good fix to me.
(Rant:does the auto start-stop make ANY measurable difference on a modern diesel? Sure on something from 50,60 years ago chugging white smoke at idle, but don’t see it today.)
Yup, somewhere around 5-8% give or take depending on the time it stays off at lights. Verified by internal and 3rd party testing.
Kalifornia strikes again!
Leave them in california.
Just try and get anything done in 1/2 hour at a dealership. You’ll spend more than that time arguing with them or listening to an upsell speil.