NHTSA Complaint #11534220 — 2010 BUICK LACROSSE

I get Reduced Engine Power and Service Stabilitrak messages. Engine Code P2138 is prevalent. The car will not accelerate, nor maintain highway speeds, forcing the driver to pull off the road and shut off the car. The warning message returns under normal driving conditions. This code points to several components [Accelerator Pedal Position (APP) Sensor, Throttle Body Assembly with Sensor, Manifold Absolute Position (MAP) Sensor, etc...] All of which I have replaced. It is rumored that General Motors knows that it is a problem and the true fix is to replace the wire(s) and seal or replace the connector. Refer to GM Technical Service Document 070604019F