NHTSA Complaint #11697489 — 2020 GMC SIERRA 1500

While driving at highway speed and attempting to pass another vehicle, I experienced an engine failure; loss of power, noise from engine, and numerous warning messages on the display. At the GM dealer, I was informed that a pushrod (cylinder #2) was bent, the source of the engine noise. Upon further inspection (removal of cylinder heads), it was determined that the cam shaft chrome had begun to flake causing pitting (lobe damage) which in turn caused the pushrod to fail. Had the pushrod broke instead of bent at highway speed, I feel there would have been a catastrophic failure with more severe consequences for my vehicle and others around me. Vehicle was diagnosed and repaired by a certified GM dealer. There were no prior warnings/indications of problem(s). I understand there is a current recall of the GM 6.2L L87 engine for model years 2021-2024. This incident occurred on a model year 2020 GM 6.2L L87, but the issues I experienced are identical to the 2021-2024 engines identified in the recall.