My 2005 Envoy is coming up P2176 Trottle Actuator Control/ Idle position not learned.

Please note that if your vehicle battery drain to less than five volts or battery disconnect without computer memory saver will set that code. first where your battery drain or disconected or the computer just throw that code , if battery where drain or disconected you will need to take your vehicle to a dealer and have them perform throttle relearn or a reputable shop with a compatible scan tool . if battery not aconcern check electronic throttle body for binding ,sticking foreign material ,carbon if any present cleaning or replace is recomend and relearn