A glitch in the computer program for the CVT may cause the oil pump, which puts hydraulic pressure to the CVT, to increase the pressure at low engine revolutions, in which case the oil pump vanes may wear. If this problem is left unattended, the vanes may be worn out prematurely, which will cause the oil pump to fail to sustain the right pressure, and in the worst case, the oil pump could break, causing the vehicle to stall.