will 385.403 put my truck out of service
No. Across our inspection records, the 0.0% out-of-service rate for 385.403 citations shows this violation does not result in trucks being placed out of service. All 15 all-time citations in our database were issued without an OOS order. This is significantly lower than the 31.4% average OOS rate across all FMCSR codes, placing 385.403 among violations that typically allow continued operation pending correction.