2012 GMC Terrain drivetrain & axles problems

My 4 cyl. AWD GMC Terrain has had excessive oil use which caused premature failure of the timing chain, loss of power/compression, blown engine, damage to exhaust manifold, cellinoids, and melted the catalytic converter. Its was a road safety, poor emissions due to failed catalytic converter. Headlights are too bright for oncoming traffic at night. Another road & safety hazard. Auto warranty is refusing to cover parts listed above caused by the timing chain and excessive oil consumption problems.

Tl* the contact owns a 2012 GMC terrain. While driving various speeds, the vehicle stalled without warning. The vehicle was brought to the dealer for diagnostic testing, but the details could not be provided. The vehicle was repaired; however, the failure recurred. While driving at various speeds, the vehicle began to jerk and hesitate and a loud abnormal knocking noise was heard. The vehicle was taken to the dealer where it was diagnosed that the vehicle was in working condition.