2004 Hummer H2 defect investigations

Investigations by NHTSA’s Office of Defects Investigation that name the 2004 Hummer H2. An investigation is how complaints can become a recall: complaints → investigation → (sometimes) TSB → recall.

• HUMMER H2 STEERING KNUCKLE FAILURES
  Engineering Analysis EA05017 · opened Oct 28, 2005 · closed Apr 30, 2007

  Odi upgraded this investigation at the conclusion of pe04-080.the alleged defect involves the failure of the steering knuckle at the lower ball joint boss, resulting in a separation of the lower ball joint from the knuckle.a lower ball joint separation could result in a loss of steering and/or a disabled vehicle. It ap…

• STEERING KNUCKLE FRACTURE
  Preliminary Evaluation PE04080 · opened Dec 2, 2004 · closed Oct 28, 2005

  During the pe, odi investigated the hummer h2 for fractures which were occurring at the front steering knuckle lower boss.when the knuckle lower boss fractures, the lower ball joint stud is released and the entire knuckle and wheel/tire assembly separates from the vehicle.odi is upgrading this investigation to gain a f…