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Discussion Starter · #1 ·
I’m DEFinitely not a happy camper.

Bought my 2021 Chevy 1500 3L i6 Duramax with the $20K Black Window package from SCA Performance two months ago.

At 2900 moles I got the Service DEF system immediately and CEL. Took it in for service and was told the exhaust temp sensor failed or was failing. After replacing the exhaust sensor the system was still reporting a DEF system warning. My truck sat at the dealership for a week waiting for a new ECM to be sent from GM.
Last night, at 4500 miles I got a check engine light on my way home from Costco and an error code P208B sent to my email.
When will this end? Does GM really expect us to pay $76K for a vehicles that’s gonna be in and out of the shop monthly?
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