GM has issued a Service Update that applies to certain units of GMC full-size trucks and SUVs, including the Sierra, Yukon, and Yukon XL, which is related to an ECM software update. For GMC models, it ...
The GMC Hummer EV and GMC Sierra EV are part of a new General Motors service update that includes a few tweaks for the vehicles' high-voltage battery software.
If you're in the market for a truck to take you far and wide, the GMC Sierra 2500 is one of the best candidates. Its strong engine choices and massive presence make it proudly bold, and the AT4X 2500 ...
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