FMCSR 393.53A: Steering System Worn — Driver Q&A

No. Across our inspection records, 393.53A citations have resulted in an out-of-service rate of 0.0%—none of the 18 all-time citations in our database led to a truck being placed out of service. This is significantly lower than the 31.4% average out-of-service rate across all FMCSR codes. A steering component defect will typically be cited as a violation, but enforcement history shows it does not trigger immediate out-of-service action.

This violation carries a CSA severity weight of 7 points. CSA points are typically multiplied based on the number of violations recorded within a 30-day rolling period. A single 393.53A citation counts once; if you receive multiple citations for the same or different violations within 30 days, the point totals compound. Check your CSA profile directly through the FMCSA portal to see your current point balance, as it updates continuously.

First, document the citation details and your inspection report. Second, inspect your steering system components—universal joints, ball joints, tie rods, drag links, and pitman arms—for wear or defects. Third, schedule repairs with a qualified mechanic immediately; do not operate the vehicle long-distance until repaired. Our inspection data shows that 393.53A often appears alongside brake violations (like defective slack adjusters) and lighting issues, so have a full vehicle inspection to catch any related problems before your next roadside check.

No, this violation is relatively uncommon and low-consequence by industry standards. Across 13 million inspections, 393.53A ranks #1988 out of 3,036 FMCSR codes by citation volume. Its 0.0% out-of-service rate contrasts sharply with similar vehicle maintenance codes: 396.3(a)(1) (inspection/repair/maintenance general) has a 45.3% OOS rate, and 393.9 (inoperable required lamps) has a 6.9% OOS rate. This suggests steering wear, while still a violation, is treated as lower-urgency by enforcement.

Yes. You can file a DataQs (FMCSA's data quality challenge system) dispute if you believe the citation is inaccurate, untimely, or recorded incorrectly. However, a steering system inspection is typically a visual/tactile finding by an inspector, so your challenge must address the factual basis: for example, if the inspector's measurement or observation was wrong, or if you had the component replaced before the inspection. Document any repairs with receipts and dates. Consult your carrier's safety manager or a compliance specialist to build your case.

In the last 180 days, our records show 393.53A citations concentrated in Texas (3 citations), Illinois (2 citations), Iowa (1 citation), and Pennsylvania (1 citation). Texas accounts for the plurality. These numbers reflect a low overall enforcement volume—only 13 citations nationally in the last 12 months—so regional variation is minimal. If you operate primarily in Texas or Illinois, remain extra vigilant with steering system inspections.

Very urgent. Although the out-of-service rate is 0.0%, steering system integrity is critical for safety and legal operation. You must repair the worn or defective component(s) before your next inspection cycle. Our 90-day data shows 3 citations for this code, indicating sporadic but ongoing enforcement. Any citation on your record affects your safety profile; a second citation within a set period will compound your CSA score. Repair immediately and document the work to defend yourself in any future roadside stop or audit.

The citation is issued to the carrier and affects the carrier's safety record and CSA profile. The driver is the operating party cited at the moment of inspection, but FMCSA regulation violations are carrier-level compliance issues under the Vehicle Maintenance BASIC. Both the driver and the carrier bear responsibility: the driver for operating a safe vehicle, and the carrier for maintaining the fleet. This violation will appear on the carrier's inspection history and may trigger follow-up audits or interventions.