will 393.126(b) put my truck out of service
Yes—there's an 86.1% chance. Our inspection records show that of 527 all-time citations for unsecured flattened or crushed vehicles, 454 resulted in out-of-service placement. That's dramatically higher than the 31.4% average OOS rate across all FMCSR codes. An inspector citing this violation has found equipment or cargo handling that fails securement requirements, and most inspectors place the vehicle OOS until the issue is corrected. Don't drive further until the load is resecured or the defect is fixed.