What 393.53A means in plain language
When you get cited for 393.53A, an inspector found that one or more steering system components on your truck are worn, fatigued, or defective. The regulation specifically covers universal joints, ball joints, tie rods, drag links, and pitman arms—the parts that connect your steering wheel input to your front axle and allow you to turn safely.
Your steering system has to be in working condition because it directly affects vehicle control. A worn tie rod can create play in the steering wheel. A fatigued universal joint can seize or break. A defective ball joint can collapse under load. Any of these failures means you lose steering control, which is why inspectors flag them immediately.
This is a maintenance citation, not a mechanical failure that triggers immediate out-of-service status. But it tells you—and your carrier—that your pre-trip inspection missed something that should have been caught.
What our enforcement data actually shows
Across our 13 million inspection records, 393.53A is a relatively rare citation. We recorded 18 all-time citations for steering system wear, with 13 in the last 12 months and 3 in the last 90 days. This ranks 393.53A at #1988 out of 3,036 FMCSR codes by citation volume.
Importantly, none of the 18 citations in our database resulted in an out-of-service placement. The OOS rate for this code is 0.0%—meaning inspectors have consistently allowed drivers to leave the roadside and correct the defect. By contrast, the all-FMCSR average OOS rate is 31.4%, so steering wear violations are treated as defects that need fixing but not roadside stops.
The last 12 months show a steady enforcement pattern, with citations in June (2), August (3), September (1), November (3), December (1), February (1), and March (2). No single month spiked above 3, suggesting this is not a seasonal issue but rather a scattered maintenance problem across the national fleet.
Who gets cited most
Our inspection records show Texas leads in 393.53A citations over the last 180 days with 3 citations and a 0.0% OOS rate, followed by Illinois with 2 citations and 0.0% OOS, and Iowa and Pennsylvania each with 1 citation and 0.0% OOS. All four states kept every cited truck running; none were placed out of service.
Among carriers, our data shows fleets such as L L Pelling Co Inc (USDOT 725553) received 2 citations for this violation, while nine other carriers each received 1 citation. The distribution is highly dispersed, indicating no single fleet pattern dominates steering system wear violations.
How severe is this compared to similar codes
Steering maintenance violations sit in a low-enforcement category compared to peer codes in the Vehicle Maintenance family. For comparison, 393.9 (Inoperable Required Lamp) has logged 180,097 citations with a 6.9% OOS rate, while 393.11 (Lighting devices/reflectors) has 179,734 citations with a 1.8% OOS rate. Both are far more commonly cited than steering wear.
The code 396.3(a)(1) (Inspection/repair/maintenance general) shows 236,919 citations with a 45.3% OOS rate, reflecting serious defects that ground trucks. Steering wear, by contrast, is treated as a fixable maintenance gap rather than an immediate safety stop. This tells you inspectors view the violation as correctable during downtime rather than requiring emergency repair.
How to avoid it
Steering system wear is almost entirely preventable with systematic pre-trip inspection:
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Check for play in the steering wheel before every shift. Grasp the steering wheel at 3 and 9 o'clock and try to move it slightly up and down without turning. Excessive play points to worn ball joints or tie rod ends. If you feel slack, report it immediately.
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Walk around the front axle and visually inspect all tie rods, drag links, and pitman arm connections. Look for cracks, bends, looseness at the joints, or grease seeping from boots. Press on each connection with your hand to detect movement where there should be none.
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Inspect universal joints on the steering column and any intermediate shafts for visible wear, cracks, or rust. Spin them by hand if accessible—they should move smoothly without binding or clunking. Check for dried grease or caked-on dirt, which often hides cracks underneath.
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Pay attention if you notice the truck drifts or pulls to one side even when you're steering straight. This is often the first sign of steering component wear. Report it in your post-trip inspection so maintenance can investigate before an inspector catches it.
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Our data shows 393.47E (Slack adjuster defective) co-occurs with steering citations in 3 recent inspections. Brake and steering inspections are related—if your slack adjusters are neglected, your steering components likely are too. Schedule comprehensive pre-trip checks that cover both systems together.
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Freigthliner trucks account for 7 of the 18 steering wear citations in our database, followed by International with 3. If you drive a Freightliner, be especially thorough with steering checks, as that model appears in our data more frequently for this violation.
The bottom line: steering system wear is not a surprise failure. It progresses visibly over time. A disciplined pre-trip that includes hands-on inspection of every steering linkage joint will catch wear before an inspector does. When you do, report it to maintenance immediately—the cost of early repair is far less than a citation and the downtime it creates.