According to a letter sent by GM to the National Highway Traffic Safety Administration (NHTSA), the issue with the airbags stems from an incorrect part used in the airbag inflator, which can cause the airbag to
rupture during deployment.
New test data on a particular subset of Takata airbag inflators show a far higher risk of
ruptures during airbag
deployment, according to a recent article published by Brett Emison, partner at Langdon & Emison.