2020 3.0 Duramax CEL

[AlexB]

Codes P25A2, U0146, U0101, U0100.   Bumper to bumper expired at 36k, I'm at 44k.  To fix, they say they need to program EBCM, $162.   That should be warranty work right?  I have a 100k warranty.

[6sigma]

I had an intermittent P25A2 code and they updated the EBCM. I'm under 36k miles so warranty work, but technically I think that falls outside the powertrain warranty so might not be covered if bumper to bumper is expired. The CEL happened a couple times before I got this flash update. 

 

I also had a P147B for a particulate sensor that needed to be replaced. 

[AlexB]

7 minutes ago, 6sigma said:

I had an intermittent P25A2 code and they updated the EBCM. I'm under 36k miles so warranty work, but technically I think that falls outside the powertrain warranty so might not be covered if bumper to bumper is expired. The CEL happened a couple times before I got this flash update. 

 

I also had a P147B for a particulate sensor that needed to be replaced. 

 

ok. I was just pissed because its a reprogram.  Not mechanical work..reprogramming.  I figured they would just do it.

[Booger T]

Still takes up a techs time

[AlexB]

Sure.  GM should cover that.  If a software update was required, someone screwed up somewhere and GM should pay to get that fixed.  

[redwngr]

from GM website:

https://www.gmc.com/owners/warranty-details

 

POWERTRAIN COVERAGE

All 2021 GMC vehicles come with a fully transferable, no-deductible, 5-year/60,000-mile^† Powertrain Limited Warranty. 1500 Series Light-Duty (LD) pickups equipped with a 3.0L Duramax Turbo-Diesel, 2500 and 3500 Series Heavy Duty (HD) pickups equipped with a 6.6L Duramax^® Turbo-Diesel Engine, and full-size SUVs equipped with a 3.0L Duramax^® Turbo-Diesel I-6 Engine are covered for 5-years/100,000 miles^†. See dealer for details.

The Powertrain Warranty covers repairs due to defects in materials and/or workmanship for components listed below:

ENGINE
All internally lubricated parts, engine oil, cooling hoses and lines. Also included are all actuators and electrical components internal to the engine, cylinder head, block, timing gears, timing chain, timing cover, oil pump/oil pump housing, OHC carriers, valve covers, oil pan, seals, gaskets, turbocharger, supercharger and all internal lubricated parts as well as manifolds, flywheel, water pump, harmonic balancer and engine mount. Timing belts are covered until the first scheduled maintenance interval. Exclusions: Excluded from the powertrain coverage are sensors, wiring, connectors, engine radiator, coolant hoses, coolant, and heater core. Coverage on the engine cooling system begins at the inlet to the water pump and ends with the thermostat housing and/or outlet that attaches to the return hose. Also excluded is the starter motor, entire pressurized fuel system (in-tank fuel pump, pressure lines, fuel rail(s), regulator, injectors, and return line) as well as the Engine/Powertrain Control Module and/or module programming.

 

 

 

Gas powertrain is 5/60,000

Bumper to bumper is 3/60,000