will 180.405J put my truck out of service
No. Across our 13 million inspection records, 180.405J has never resulted in an out-of-service citation—the OOS rate is 0.0%. All 2 all-time citations for this violation resulted in the truck remaining in service. This makes it far less severe than the average FMCSR code, which carries a 31.4% OOS rate. You will not be placed OOS for this citation.