Ford MUSTANG MACH-E 2022 Owner's Manual page 192

Brakes
Note: Brake dust could accumulate on the
wheels, even under normal driving
conditions. Some dust is inevitable as the
brakes wear, and does not contribute to
brake noise. See Cleaning Wheels (page
312).
188
2022 Mustang Mach-E (CGW) Canada/United States of America, enUSA, Edition date: 202109, First-Printing