United States 86V122000
General Motors, LLC
The problem
THE LEFT AND RIGHT REAR LOWER CONTROL ARM BALL JOINT STUD TO KNUCKLE ATTACHMENT MAY HAVE BEEN INADEQUATELY TIGHTENED. CONSEQUENCE OF DEFECT: THIS COULD ALLOW THE REAR LOWER CONTROL ARM BALL JOINT STUD TO LOOSEN AT THE KNUCKLE ATTACHMENT. A LOOSE BALL JOINT STUD COULD EVENTUALLY BREAK AND SEPARATE FROM THE KNUCKLE. SEPARATION COULD CAUSE A LOSS OF VEHICLE CONTROL WHICH COULD RESULT IN A VEHICLE CRASH WITHOUT PRIOR WARNING.
What owners should do
REPLACE AND TIGHTEN BOTH LEFT AND RIGHT REAR LOWER CONTROL ARM BALL JOINT STUD NUTS.
Units 38309