NHTSA Complaint #11600412 — 2012 BUICK ENCLAVE

Driving along and engine power reduced causing car to slow significantly - like downshifting two gears. Lights / traction control lights came on dash. Errors flashed - "Traction Control Off", "Service Stabilitrak", "Engine Power Reduced" All of this not only caused a slight bit of confusion, but placed us in danger with the flow of traffic. A repair shop replaced the gas pedal, however issue persists. Research indicates the throttle body sensor might be at fault - so we replaced this. Issue persisted, so I spent time online and found a GM TSB indicating a known issue and extending the warranty 10 years or 120K miles for P2138 Code. At this point, this issue persists intermittently, so we do not consider the vehicle safe to drive.