Report "Vehicle exhibits surging during low speed maneuvers (i.e. manueveing in parking spots, initial accelerations, ...). Dealership says it is due to a defective throttle body but won't cover it on extended warranty but throttle body is an exclusion. I believe the throttle position is controlled electronically (fly-by wire), but it is non-replaceable on the throttle body, ergo why a new throttle body is required. Is this truly the cause of the problem? Nobody has had their throttle body replaced yet due to back-order so we don't know it the +$500 cost for the replacement throttle body will fix the problem"