GM reporting Duramax Diesel powertrain issues caused by aftermarket software; non-GM software voids powertrain warranties
Green Car Congress
AUGUST 19, 2012
The bulletin outlines software identification and power-up hardware detection procedures, and recommends that such procedures be carried out whenever a “hard part failure” is observed on internal engine, transmission, transfer case, rear axle assembly, or exhaust after-treatment system that is under warranty.
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