United States 86V030000
General Motors, LLC
The problem
THE THROTTLE RETURN SPRING ASSEMBLY MAY FAIL PREVENTING THE THROTTLE FROM RETURNING TO THE CLOSED (IDLE) POSITION WHEN THE ACCELERATOR PEDAL IS RELEASED. CONSEQUENCE OF DEFECT: ENGINE SPEED MAY NOT DECREASE AND LOSS OF ACCELERATOR CONTROL COULD RESULT IN AN ACCIDENT WITHOUT PRIOR WARNING.
What owners should do
REPLACE THROTTLE RETURN SPRING.
Units 135623