Defect
On certain vehicles, the engine throttle may stick in the open position due to throttle body icing in temperatures near or below -20 degrees Celsius. If the throttle sticks open while the vehicle is moving, a crash could occur without prior warning. The vehicle may experience this condition even if one or both of the previous two campaign services have been performed. See recall 2005235 (GM 05521) & 2006239 (GM 06515).
Safety Risk
No risk description available.
Remedy
Dealers will replace the PCV and throttle body systems.