By bleeding the Cadillac CTS master cylinder, most of the time that is in reference to bench bleeding a new (replacement) master cylinder.
Hands down the best tool available allows use of virtual Tech 2- the vxdiag vcx nano gm gds2 scanner.
For more you can access programming control modules and updates with service from ACDelco TDS subscription, you can do almost anything a dealership can do. ACDelco TDS $40 for 2 years per VIN.
I pressure bleed with these
GEARWRENCH Air Pump Brake Bleeder Tank – 3795D
and
Power Probe BA04 Brake Bleeder Adapter
I won’t use a motive bleeder, junk bleeders IMO, they can’t deliver the volume and pressure needed for most ABS bleeding procedures via tech 2 or scan tools.
I bleed my brakes @ 2 bar with tool above.
lastly make sure you got a good battery charger running, key on engine off and running ABS eats power.
Tools cost money, but tools save money as well. Now your wasting $ on brake fluid, DIY brake bleeder & time. Time is money!