I have a 2011 Vanguard, the Moto-Massage jets each have a control knob and can be turned down to low speed. (If you go to the Hot Springs site and download the owner's manual, it's the knob labeled B in the picture) But you'd have to shut off that pump (Jet 1) to turn them all the way off. If you can't turn them down to low speed, then something may be wrong.
FWIW, when I just want to let the water circulate without too much massage, I turn on Jet 2 only, and set the main diverter in the middle, that puts water through most of the non-Moto-Massage jets at the same time.