2015 GMC Sierra 1500 defect investigations

Investigations by NHTSA’s Office of Defects Investigation that name the 2015 GMC Sierra 1500. An investigation is how complaints can become a recall: complaints → investigation → (sometimes) TSB → recall.

• Desiccated Air Bag Inflator Rupture
  Engineering Analysis EA21002 · opened Sep 17, 2021 · still open

  From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to…

• Brake Vacuum Pump Failure
  Preliminary Evaluation PE18012 · opened Nov 20, 2018 · closed Apr 10, 2022 · led to recall 19V645000

  On November 20, 2018, the Office of Defects Investigations (ODI) opened PE18-012 to investigate instances of sudden onset of a hard brake pedal that could result in extended stopping distance due to an issue with the brake assist vacuum pump in model year (MY) 2014 through 2016 GMC Sierra 1500 and Chevrolet Silverado 1…