GMC · Canada · High
GMC Sierra: Powertrain
Affects GMC Sierra · 2015 — about 15 vehicles.
The hazard
On certain vehicles, rear axle shafts may not have been properly heat treated. An improperly heat-treated axle shaft could fracture without warning near the hub flange resulting in separation of a rear wheel from the axle shaft, increasing the risk of a crash which may result in injury and/or property damage. Correction: Dealers will inspect the manufacturing code on rear axle shafts and replace those identified as defective.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational