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 ...

Unveiled in May 2025, the 2026 GMC Hummer EV broke cover with the new King Crab off-roading mode. That feature isn't limited to the latest model year, though - General Motors announced plans to ...