FMCSR 393.53(c): Worn Steering Components — Q&A

No. Across our 13 million+ inspection records, 393.53(c) citations result in a 0.0% out-of-service rate. All 508 all-time citations for worn steering system components were issued as violations without placing the vehicle out of service. This is significantly more lenient than the 31.4% national average OOS rate across all FMCSR codes—and far below peer violations like inoperable required lamps (15.4% OOS) or general inspection/repair violations (45.3% OOS).

This violation carries a CSA severity weight of 7. Points are multiplied by the number of days in the 30-day cycle when the violation occurs, so the final points depend on your exact citation date. A severity weight of 7 places this mid-range among vehicle maintenance violations—more serious than inoperable lamp citations but less severe than brake or structural defects. Your carrier's safety manager can run the exact calculation once they have your citation packet.

1. Photograph the citation. Document the date, location, and inspector name.
2. Request inspection details. Ask the inspector to specify which steering components (universal joints, ball joints, tie rods, drag links, pitman arms) were found worn or defective.
3. Contact your fleet's maintenance team and forward the citation immediately—they need to schedule repair before you run again.
4. Retain the citation packet for your DataQs contest window (if you dispute it) or for your repair records.
5. Do not operate that vehicle on long-haul routes until repairs are documented and signed off.

No. Our data shows 393.53(c) is one of the least-cited violations in the Vehicle Maintenance category—ranked #914 out of 3,036 FMCSR codes by enforcement volume, with only 508 all-time citations. This low citation count, combined with its 0.0% out-of-service rate, suggests inspectors cite it rarely and treat it as a defect requiring repair rather than an immediate safety threat. Compare this to inoperable lamps (660,737 citations, 15.4% OOS) or general maintenance violations (236,919 citations, 45.3% OOS)—both far more common and more likely to result in OOS orders.

Yes. DataQs is FMCSA's online system for drivers and fleets to challenge roadside inspection records. For 393.53(c), your contest strategy depends on the type of finding: if the inspector made a documentation error (misidentified the component, wrong vehicle, duplicated record), that's easily provable. If the inspector's judgment about wear or defect is subjective, your argument is stronger if you have recent service records, shop receipts, or a certified mechanic's inspection showing the components are not worn. Submit evidence within the contest window and cite the specific component the inspector flagged.

Our inspection records show 393.53(c) citations are concentrated among Mexican-domiciled carriers crossing the U.S. border. The top carrier by citation count is Servicio Internacional de Enlace Terrestre SA de CV (12 citations), followed by VRP Transportes de Mexico (6 citations) and three other Mexico-based fleets with 5 citations each. Freightliner trucks account for the most citations among vehicle makes (76), followed by Kenworth (35) and Utility trailers (34). This pattern suggests the violation is most common in cross-border freight operations subject to border inspections.

Medium urgency. While the citation won't ground your truck immediately (0.0% OOS rate), worn steering components are a safety and legal liability. Our data shows no citations in the last 90 days for this code, reflecting either improved compliance or inspector focus on other violations. Steering defects can worsen quickly under load and across long hauls, so repair should happen before your next dispatch. Do not defer: a second citation within 12 months could trigger CSA escalation and carrier audit scrutiny, and a steering failure in traffic creates catastrophic liability.

Both. The violation appears on your Motor Carrier Safety Assessment (CSA) profile as a Vehicle Maintenance incident, which affects the carrier's Maintenance BASIC. It also follows you individually through your driver Safety Event records if FMCSA has linked you to the citation packet. For CSA purposes, your carrier's overall maintenance record is the primary metric that regulators and insurers review. A single citation is unlikely to trigger action unless the carrier has a pattern of maintenance violations.