After driving through deep standing water, what does the CDL manual say a driver should do to deal with wet brakes?

49 CFR 383.111(a)(12); AAMVA CDL Manual (nhcdm.pdf) Section 2.13.2, p. 2-28, 'Wet Brakes'

Water in the brakes can cause them to become weak, grab unevenly, pull to one side, or lock a wheel, any of which can cause a loss of control, especially with a trailer attached. The manual's specific sequence, low gear, light steady pressure through the water, continued light pressure after, then a test stop before resuming speed, is a procedure the exam expects drivers to know precisely rather than approximate.