Will 177.841(e) put my truck out of service?
Yes—but this is extremely rare in practice. Across our inspection records, when 177.841(e) citations were issued, they resulted in an out-of-service placement 100% of the time. However, context matters: only 2 citations for this specific code appear in our entire 13 million-record database. For comparison, the national average out-of-service rate across all FMCSR codes is 31.4%, so this code sits well above that threshold when cited, but actual enforcement is minimal.