HaulerCheck · https://haulercheck.com/carrier/4088004-transportes-jl-sierra-sa-de-cv/ · Checked 2026-10-20 04:05 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
TRANSPORTES JL SIERRA SA DE CV
Review before booking · 1 signal
How risk signals workFacts from the FMCSA record that call for a closer look. They are not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026.
- Vehicle out-of-service rate well above the state average44.1% vs Newfoundland and Labrador average 20.9%.
No cargo cover filed with FMCSA
Not a live check. FMCSA has not published a Motus record for this carrier, so authority and insurance show the last known status from May 14, 2026. Confirm on Motus ↗ before booking.
What to verify next
- Confirm authority and insurance on the official Motus record ↗: our copy is the last known status from May 14, 2026. Safety record: SAFER ↗.
- Call back on the number on file, (811) 279-8650, not a number from an email or load board.
- Check that the MC number you were given is MX1562587.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
No insurance filings were found in the public FMCSA data for this carrier.
Roadside inspections Oct 19, 2024 – Oct 19, 2026
15 of 34 · Newfoundland and Labrador avg 20.9%
3 of 37 · Newfoundland and Labrador avg 2.9%
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Oct 6, 2026 | US | 1 | 12 | Yes |
| Aug 17, 2026 | US | 1 | 5 | No |
| Aug 6, 2026 | US | 3 | 2 | No |
| Jul 23, 2026 | US | 3 | 1 | No |
| Jul 21, 2026 | TX | 1 | 5 | No |
| Jun 26, 2026 | US | 1 | 18 | Yes |
| Jun 15, 2026 | US | 2 | 5 | Yes |
| Jun 1, 2026 | US | 1 | 10 | Yes |
| May 29, 2026 | US | 2 | 10 | Yes |
| May 19, 2026 | US | 1 | 15 | Yes |
How these rates are calculated
Period: Oct 19, 2024 – Oct 19, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The Newfoundland and Labrador average covers 22,364 vehicle and 24,607 driver inspections of all Newfoundland and Labrador-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗
Violations in FMCSA's SMS last 24 months
215 violations counted in FMCSA's Safety Measurement System (SMS), 28 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 270 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 19, 2024 – Oct 19, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.
| Category (FMCSA BASIC) | Violations | Out of service | Share | Newfoundland and Labrador share |
|---|---|---|---|---|
| Vehicle Maintenance | 189 | 25 | 87.9% | 86.3% |
| Driver Fitness | 26 | 3 | 12.1% | 11.8% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Border Zone - Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) in accordance with the current corresponding FMCSA enforcement General Driver Qualification · Driver Fitness · code 39111B2Z | 22 | 0 |
| Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 Brakes All Others · Vehicle Maintenance · code 39355EB | 15 | 0 |
| Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1 1997 and each single unit CMV on or after 1998. Brakes All Others · Vehicle Maintenance · code 39355D1B | 11 | 0 |
| Lubrication - Oil or grease leak Other Vehicle Defect · Vehicle Maintenance · code 3965BL | 11 | 0 |
| Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt Brakes Out of Adjustment · Vehicle Maintenance · code 39347E | 9 | 0 |
| Tires - All others - Exposed ply or belt material in tread or sidewall area Tires · Vehicle Maintenance · code 39375A1TEPBM | 8 | 0 |
| Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear Brakes All Others · Vehicle Maintenance · code 39353BB | 7 | 0 |
| Exhaust - Discharging at a point forward or directly below the driver or sleeper compartment Exhaust Discharge · Vehicle Maintenance · code 39383G | 7 | 0 |
| Steering - Power steering leaking anywhere. Steering Mechanism · Vehicle Maintenance · code 393209ESPSLA | 7 | 0 |
| Air Brake - Hose/tubing damaged or not secured Brakes All Others · Vehicle Maintenance · code 39345B2BAIR | 6 | 0 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 19, 2026. "Share" is this company's mix of violations; the Newfoundland and Labrador column is the mix across all Newfoundland and Labrador-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 19, 2024 – Oct 19, 2026
No reportable crashes in this period.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 4088004 |
|---|---|
| MC / docket | MX1562587 |
| Legal name | TRANSPORTES JL SIERRA SA DE CV |
| Operation | Interstate |
| Business type | — |
| Power units | 6 |
| Drivers | 6 |
| Annual mileage | 10,000 (2024) |
| Hazmat | No |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Jun 8, 2023 · 3 years ago |
| Last MCS-150 update | Aug 13, 2025 |
Cargo carried
General FreightMetal: Sheets, Coils, RollsCommodities Dry BulkOtherOther
Change history
No changes to name, contact details, authority or insurance since we started tracking on Oct 18, 2026. We compare every company's FMCSA record each day.
to see it on your watchlist when something changes.
Questions about TRANSPORTES JL SIERRA SA DE CV
What does TRANSPORTES JL SIERRA SA DE CV's operating authority allow?
MX1562587: Common carrier (may haul regulated property for hire for the general public).
Which information about TRANSPORTES JL SIERRA SA DE CV is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. No insurance filings were found in the public data. FMCSA has not issued a safety rating, which means no compliance review is on record, not that the carrier is unsafe.
What should I verify before booking TRANSPORTES JL SIERRA SA DE CV?
Confirm the authority and insurance on the Motus record for USDOT 4088004. Call the company back on the phone number on file, (811) 279-8650, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MX1562587, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in General Zuazua, NL →
Company details from the FMCSA Company Census File (Oct 19, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-20 04:05 UTC.