Will 393.128B2 put my truck out of service?
Yes, there's a high likelihood. Across our inspection records, 393.128B2 citations resulted in out-of-service placement 78.9% of the time—far above the all-FMCSR average of 31.4%. Of the 19 all-time citations in our database, 15 were placed out of service. This means if you're cited, inspectors typically deem the violation safety-critical enough to sideline your vehicle until corrected.