A hybrid vehicle may run with only the power from a motor MG2, while an
engine is at a stop. In this state, the control procedure drives a motor MG1
to rotate a crankshaft at an idling engine speed for a predetermined time period,
when at least one of an observed oil temperature in a sump, an observed temperature
of the motor MG1, an observed temperature of the motor MG2, an observed
revolving speed of the motor MG1, and an observed revolving speed of the
motor MG2 is not less than a corresponding preset value. Rotation of the
crankshaft at the idling engine speed results in driving an oil pump to feed a
supply of lubricating oil to mechanical part of the power output apparatus including
a power distribution integration mechanism.