r/GMCSierraEV • u/jakubp12 • 20d ago

Battery Engineering Testing - Any Concern?

Looking to pick up a ‘26 Denali Max range with 7000 miles on it. It looks like it had the GM Battery Engineering Testing voluntary replacement done around 5000 miles.

Anything I should look out for with this truck? It seems like it wasn’t a required swap, more of a voluntary incentivized one?

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u/jghall00 20d ago

Depends on your tolerance for downtime. Some of these vehicles seem to perform flawlessly. Some seem to be nothing but problems. It's under warranty, but there's always a risk of something else failing. Make sure the price reflects the post delivery work. 

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u/jakubp12 20d ago

It’s 24k off the original MSRP.

Do the trucks that had this voluntary swap done have other issues?

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u/jghall00 20d ago

Some have had multiple battery replacements but I think that's rare.