For your protection, your login session will expire in 0:00, do you wish extend your session or logout?
FMCSA - Federal Motor Carrier Safety Adminstration

CSA - Compliance, Safety, Accountability

Working Together for Safety.


SMS - Safety Measurement System SMS - Safety Measurement System

TRANSPORTES SIERRA LIBRE SA DE CV

  • 2801878
  • CARRETERA A LA VICTORIA S N
    HERMOSILLO, SO 83304
  • 8
  • 7
  • 21

Safety Rating & OOS Rates AND Licensing and Insurance

As part of FMCSA’s IT modernization strategy, we are in the process of merging our data platforms to make it easier for you to find the information you need. During this transition, please refer to the links below for additional information about this carrier.

BASIC Status (Public Property Carrier View) FAST Act of 2015

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending July 31, 2026

On-Road Performance
0 Not Public 0.06 20.20 0 Not Public 2.80
On-Road Performance Detail
0
No Safety Event Grouping
8
Combination Carrier
Not Public
21
2
21-100 relevant driver inspections
19
19
11-20 relevant vehicle inspections
21
0
No Safety Event Grouping
Not Public
21
4
21-100 relevant driver inspections
Investigation Results
No Acute/Critical Violations Discovered N/A No Acute/Critical Violations Discovered No Acute/Critical Violations Discovered No Acute/Critical Violations Discovered Not Public No Acute/Critical Violations Discovered

Select a BASIC icon above to get details, or view your Complete SMS Profile.

Violation Summary

Violations: 123

Violations Description # Violations # OOS Violations Violation Severity Weight BASIC
395.22G-ELDMFV HOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position. 1 0 1 HOS Compliance
395.30B2-ELDDFC24 HOS (ELD) - Driver failing to certify the record immediately after the final required entry has been made or corrected for the 24 hour period. 1 0 1 HOS Compliance
383.23A2-LCDLN License (CDL) - Operate a CMV and does not possess a valid CDL 2 2 8 Driver Fitness
383.95A-LCDL Restriction - (CDL) - Operate a CMV in violation of a restriction 1 1 8 Driver Fitness
391.11B2-Z Border Zone - Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) as per FMCSA Enforcement Guidance Memo MC-SEE-2025-0001. 1 0 4 Driver Fitness
391.41B10-MC Medical (Certificate) - Operating a commercial vehicle without corrective lenses or hearing aid as indicated on the driver's medical certificate 1 1 2 Driver Fitness
392.9A2-C Cargo - Vehicle components or dunnage not secured 4 4 1 Vehicle Maint.
393.11A1-CSLRR Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 3 0 3 Vehicle Maint.
393.11A1-LCHL Lighting - Lamps improper color, height, location. 4 0 6 Vehicle Maint.
393.11A1-LCL Lighting - Clearance lamp(s) missing 1 0 2 Vehicle Maint.
393.11A1-LIL Lighting - Identification lamp(s) missing 2 0 2 Vehicle Maint.
393.11A1-LLPL Lighting - License plate lamp missing 2 0 2 Vehicle Maint.
393.11B-CSLRR Conspicuity Systems - Trailers, lower rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993 1 0 3 Vehicle Maint.
393.11B-CSURR Conspicuity Systems - Trailers, upper rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993 3 0 3 Vehicle Maint.
393.201A-FRCLS Frame - Cracked/loose/sagging/broken frame or chassis 2 0 2 Vehicle Maint.
393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured 5 0 4 Vehicle Maint.
393.45B2-BHTD Air Brake - Hose/tubing damage into the outer reinforcement ply. 1 1 4 Vehicle Maint.
393.45D-B Air Brake - Audible air leak at a proper connection 1 0 4 Vehicle Maint.
393.47A-BCLMBD Drum Brake - Cracked/loose/missing lining/pad 1 0 4 Vehicle Maint.
393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt 1 0 4 Vehicle Maint.
393.48A-BIBD Drum Brake - Inoperative other than a steering axle 3 0 4 Vehicle Maint.
393.48A-BLMACBD Drum Brake - Loose chamber/spider/camshaft support bracket 3 0 4 Vehicle Maint.
393.48A-BMBCBD Drum Brake - Missing/broken component(s) 1 0 4 Vehicle Maint.
393.53B-B Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear 2 0 4 Vehicle Maint.
393.55C1-B Air Brake - Truck-tractor manufactured on or after March 1, 1997, not equipped with an ABS system. System does not function or indicates a fault. 2 0 4 Vehicle Maint.
393.55C2-B Air Brake - CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. System does not function or indicates a fault. 3 0 4 Vehicle Maint.
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 6 0 4 Vehicle Maint.
393.60(c) Windshield - Damaged or Discolored 1 0 1 Vehicle Maint.
393.65F-F Fuel - Improper fuel line protection 2 0 1 Vehicle Maint.
393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS 1 1 8 Vehicle Maint.
393.75B-TFV Tires - Front, less than 4/32 inch tread depth 1 0 8 Vehicle Maint.
393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth 4 0 8 Vehicle Maint.
393.78A-WS Washers - Inoperative washing system. 12 0 1 Vehicle Maint.
393.95A4-EEUS Emergency Equipment - Fire Extinguishers - unsecured 2 0 2 Vehicle Maint.
393.9A-LBL Lighting - Backup lamp inoperative 2 0 6 Vehicle Maint.
393.9A-LCL Lighting - Clearance lamp(s) inoperative 2 0 2 Vehicle Maint.
393.9A-LIL Lighting - Identification lamp(s) inoperative 2 0 2 Vehicle Maint.
393.9A-LLPL Lighting - License plate lamp inoperative 3 0 2 Vehicle Maint.
393.9A-LSML Lighting - Side marker lamp(s) inoperative 1 0 2 Vehicle Maint.
396.17C-PI Operating a CMV without documentation of a periodic inspection 3 0 4 Vehicle Maint.
396.3A1-ALBV Air Brake - Any leak from a brake valve 6 0 4 Vehicle Maint.
396.3A1-BALAC Brake - Audible air leak from a brake chamber 4 0 4 Vehicle Maint.
396.3A1-BALR Air Brake - Fails air loss rate test 1 1 4 Vehicle Maint.
396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination 3 3 0 Vehicle Maint.
396.5B-L Lubrication - Oil or grease leak 8 0 3 Vehicle Maint.
396.9D2-FTF Failing to correct the violation(s)/defect(s) noted on the roadside inspection report 7 0 4 Vehicle Maint.

Inspection History

Total Inspections: 21

Report Vehicle Measure
Inspection Date Number State Plate Number Plate State Type Severity Weight
(SW)
Time Weight
(TiW)
6/3/2026 AZ7784000425 AZ 71AN7E SO TRUCK TRACTOR   3
396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination (OOS) 0 + 2 (OOS)  
393.48A-BIBD Drum Brake - Inoperative other than a steering axle 4  
396.3A1-BALAC Brake - Audible air leak from a brake chamber 4  
396.3A1-BALR Air Brake - Fails air loss rate test (OOS) 4 + 2 (OOS)  
3/30/2026 US1093002177 US 31BL8U MX TRUCK TRACTOR   3
391.11B2-Z Border Zone - Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) in accordance with the current corresponding FMCSA enforcement 4  
2/28/2026 US1093002100 US 93AX5G MX TRUCK TRACTOR   3
383.23A2-LCDLN License (CDL) - Operate a CMV and does not possess a valid CDL (OOS) 8 + 2 (OOS)  
391.41B10-MC Medical (Certificate) - Operating a commercial vehicle without corrective lenses or hearing aid as indicated on the driver's medical certificate (OOS) 2 + 2 (OOS)  
12/22/2025 US1409002430 US 72AN7E MX TRUCK TRACTOR   2
393.9A-LBL Lighting - Backup lamp inoperative 6  
393.75B-TFV Tires - Front, less than 4/32 inch tread depth 8  
393.55C2-B Air Brake - CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. System does not function or indicates 4  
393.11A1-LCHL Lighting - Lamps improper color, height, location. 6  
393.11A1-CSLRR Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 3  
393.9A-LLPL Lighting - License plate lamp inoperative 2  
396.17C-PI Operating a CMV without documentation of a periodic inspection 4  
12/17/2025 US1410002188 US 93AX5G MX TRUCK TRACTOR   2
383.95A-LCDL Restriction - (CDL) - Operate a CMV in violation of a restriction (OOS) 8 + 2 (OOS)  
392.9A2-C Cargo - Vehicle components or dunnage not secured (OOS) 1 + 2 (OOS)  
393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured 4  
393.55C1-B Air Brake - Truck-tractor manufactured on or after March 1, 1997, not equipped with an ABS system. System does not function or indicates a fault. 4  
393.55C2-B Air Brake - CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. System does not function or indicates 4  
393.78A-WS Washers - Inoperative washing system. 1  
396.9D2-FTF Failing to correct the violation(s)/defect(s) noted on the roadside inspection report 4  
396.3A1-ALBV Air Brake - Any leak from a brake valve 4  
396.17C-PI Operating a CMV without documentation of a periodic inspection 4  
10/18/2025 US1296001776 US 71AN7E MX TRUCK TRACTOR   2
393.11B-CSURR Conspicuity Systems - Trailers, upper rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993 3  
393.78A-WS Washers - Inoperative washing system. 1  
396.3A1-ALBV Air Brake - Any leak from a brake valve 4  
5/29/2025 US0989001198 US 39AM1G MX TRUCK TRACTOR   1
393.48A-BLMACBD Drum Brake - Loose chamber/spider/camshaft support bracket 4  
393.48A-BIBD Drum Brake - Inoperative other than a steering axle 4  
393.11A1-LCHL Lighting - Lamps improper color, height, location. 6  
393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth 8  
396.9D2-FTF Failing to correct the violation(s)/defect(s) noted on the roadside inspection report 4  
396.5B-L Lubrication - Oil or grease leak 3  
396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination (OOS) 0 + 2 (OOS)  
393.78A-WS Washers - Inoperative washing system. 1  
4/10/2025 US1301001404 US 93AX5G MX TRUCK TRACTOR   1
393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured 4  
392.9A2-C Cargo - Vehicle components or dunnage not secured (OOS) 1 + 2 (OOS)  
393.78A-WS Washers - Inoperative washing system. 1  
396.3A1-ALBV Air Brake - Any leak from a brake valve 4  
396.3A1-BALAC Brake - Audible air leak from a brake chamber 4  
396.5B-L Lubrication - Oil or grease leak 3  
4/7/2025 US1185001271 US 40AM1G MX TRUCK TRACTOR   1
393.11A1-LCL Lighting - Clearance lamp(s) missing 2  
393.11A1-LIL Lighting - Identification lamp(s) missing 2  
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 4  
396.5B-L Lubrication - Oil or grease leak 3  
4/4/2025 US1180001067 US 71AN7E MX TRUCK TRACTOR   1
393.11B-CSURR Conspicuity Systems - Trailers, upper rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993 3  
392.9A2-C Cargo - Vehicle components or dunnage not secured (OOS) 1 + 2 (OOS)  
393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured 4  
396.9D2-FTF Failing to correct the violation(s)/defect(s) noted on the roadside inspection report 4  
396.17C-PI Operating a CMV without documentation of a periodic inspection 4  
393.9A-LLPL Lighting - License plate lamp inoperative 2  
393.53B-B Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear 4  
393.65F-F Fuel - Improper fuel line protection 1  
393.78A-WS Washers - Inoperative washing system. 1  
393.95A4-EEUS Emergency Equipment - Fire Extinguishers - unsecured 2  
393.9A-LCL Lighting - Clearance lamp(s) inoperative 2  
393.9A-LIL Lighting - Identification lamp(s) inoperative 2  
3/20/2025 US1410001437 US 72AN7E MX TRUCK TRACTOR   1
393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured 4  
393.9A-LBL Lighting - Backup lamp inoperative 6  
3/18/2025 US0987000035 US 40AM1G MX TRUCK TRACTOR   1
393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt 4  
393.53B-B Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear 4  
3/10/2025 US1301001307 US 65AN5V MX TRUCK TRACTOR   1
393.65F-F Fuel - Improper fuel line protection 1  
393.78A-WS Washers - Inoperative washing system. 1  
396.9D2-FTF Failing to correct the violation(s)/defect(s) noted on the roadside inspection report 4  
2/10/2025 US1248001198 US 70AN7E MX TRUCK TRACTOR   1
393.9A-LLPL Lighting - License plate lamp inoperative 2  
393.78A-WS Washers - Inoperative washing system. 1  
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 4  
393.11A1-LCHL Lighting - Lamps improper color, height, location. 6  
393.11B-CSLRR Conspicuity Systems - Trailers, lower rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993 3  
395.22G-ELDMFV HOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position. 1  
396.3A1-ALBV Air Brake - Any leak from a brake valve 4  
396.5B-L Lubrication - Oil or grease leak 3  
1/28/2025 US1296001158 US 39AM1G MX TRUCK TRACTOR   1
393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth 8  
393.48A-BMBCBD Drum Brake - Missing/broken component(s) 4  
393.45D-B Air Brake - Audible air leak at a proper connection 4  
393.201A-FRCLS Frame - Cracked/loose/sagging/broken frame or chassis 2  
393.11B-CSURR Conspicuity Systems - Trailers, upper rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993 3  
393.78A-WS Washers - Inoperative washing system. 1  
396.9D2-FTF Failing to correct the violation(s)/defect(s) noted on the roadside inspection report 4  
396.5B-L Lubrication - Oil or grease leak 3  
396.3A1-BALAC Brake - Audible air leak from a brake chamber 4  
1/22/2025 US1372001099 US 39AM1G MX TRUCK TRACTOR   1
383.23A2-LCDLN License (CDL) - Operate a CMV and does not possess a valid CDL (OOS) 8 + 2 (OOS)  
393.201A-FRCLS Frame - Cracked/loose/sagging/broken frame or chassis 2  
393.48A-BLMACBD Drum Brake - Loose chamber/spider/camshaft support bracket 4  
393.55C1-B Air Brake - Truck-tractor manufactured on or after March 1, 1997, not equipped with an ABS system. System does not function or indicates a fault. 4  
396.9D2-FTF Failing to correct the violation(s)/defect(s) noted on the roadside inspection report 4  
393.78A-WS Washers - Inoperative washing system. 1  
396.5B-L Lubrication - Oil or grease leak 3  
396.3A1-ALBV Air Brake - Any leak from a brake valve 4  
395.30B2-ELDDFC24 HOS (ELD) - Driver failing to certify the record immediately after the final required entry has been made or corrected for the 24 hour period. 1  
393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth 8  
12/10/2024 US1093001003 US 40AM1G MX TRUCK TRACTOR   1
393.11A1-LIL Lighting - Identification lamp(s) missing 2  
393.11A1-CSLRR Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 3  
393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured 4  
396.3A1-ALBV Air Brake - Any leak from a brake valve 4  
393.78A-WS Washers - Inoperative washing system. 1  
393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth 8  
393.60(c) Windshield - Damaged or Discolored 1  
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 4  
393.48A-BIBD Drum Brake - Inoperative other than a steering axle 4  
393.47A-BCLMBD Drum Brake - Cracked/loose/missing lining/pad 4  
12/9/2024 US1301001071 US 71AN7E MX TRUCK TRACTOR   1
392.9A2-C Cargo - Vehicle components or dunnage not secured (OOS) 1 + 2 (OOS)  
396.5B-L Lubrication - Oil or grease leak 3  
393.9A-LIL Lighting - Identification lamp(s) inoperative 2  
393.9A-LCL Lighting - Clearance lamp(s) inoperative 2  
393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS (OOS) 8 + 2 (OOS)  
12/9/2024 US1248001047 US 65AN5V MX TRUCK TRACTOR   1
393.95A4-EEUS Emergency Equipment - Fire Extinguishers - unsecured 2  
393.78A-WS Washers - Inoperative washing system. 1  
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 4  
393.55C2-B Air Brake - CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. System does not function or indicates 4  
393.11A1-LCHL Lighting - Lamps improper color, height, location. 6  
393.11A1-CSLRR Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 3  
393.9A-LSML Lighting - Side marker lamp(s) inoperative 2  
396.9D2-FTF Failing to correct the violation(s)/defect(s) noted on the roadside inspection report 4  
396.5B-L Lubrication - Oil or grease leak 3  
11/15/2024 US1093000951 US 70AN7E MX TRUCK TRACTOR   1
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 4  
393.48A-BLMACBD Drum Brake - Loose chamber/spider/camshaft support bracket 4  
393.78A-WS Washers - Inoperative washing system. 1  
393.11A1-LLPL Lighting - License plate lamp missing 2  
11/6/2024 US1500000927 US 70AN7E MX TRUCK TRACTOR   1
396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination (OOS) 0 + 2 (OOS)  
393.45B2-BHTD Air Brake - Hose/tubing damage into the outer reinforcement ply. (OOS) 4 + 2 (OOS)  
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 4  
396.3A1-BALAC Brake - Audible air leak from a brake chamber 4  
393.11A1-LLPL Lighting - License plate lamp missing 2  

Reviewed-Not Preventable Crash Activity (vehicles involved in crashes)

Total Number of Crashes: 0

This carrier has no crashes to display.

Crashes Included in SMS (vehicles involved in crashes)

Total Number of Crashes: 0

This carrier has no crashes to display.

Investigation Results

Acute/Critical Violations: 0

This carrier has no Acute/Critical violations to display.

Summary of Activities

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

  • 21
    • 0
    • 21
  • : 0

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Continue for more Crash, Inspection & Investigation Details

Inspection Selection System

As part of FMCSA’s IT modernization strategy, we are in the process of merging our data platforms to make it easier for you to find the information you need. During this transition, please refer to the links below for additional information about this carrier.

Enforcement Cases

(Six years as of 09/07/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review
For U.S. DOT# 2801878
Complete SMS Profile Carrier History Downloads