| “This site contains affiliate links for which OEMDTC may be compensated” |
June 3, 2024 NHTSA CAMPAIGN NUMBER: 24V392000
Wheel Detachment from Loose Wheel Hub Fasteners
A loss of vehicle control increases the risk of a crash.
NHTSA Campaign Number: 24V392
Manufacturer Daimler Trucks
North America, LLC
Components WHEELS
Potential Number of Units Affected 106
Summary
Daimler Trucks North America, LLC (DTNA) is recalling certain 2025 Thomas Built Buses Saf-T-Liner C2 and EFX school buses. The wheel hub fasteners may loosen and cause the wheel to detach, which can result in a loss of vehicle control.
Remedy
The remedy is currently under development. Owner notification letters are expected to be mailed July 30, 2024. Owners may contact DTNA customer service at 800-745-8000. DTNA’s number for this recall is F1002.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Check for Daimler Trucks North America Recalls
Chronology :
On or about April 22, 2024, a vehicle being tested on a dynamometer at one of DTNA’s manufacturing plants experienced wheel end separation. The following day, DTNA notified the axle supplier of the incident and the supplier determined that the wheel on this vehicle separated because of a missing snap ring that should have been present in the preset wheel hubs. The supplier continued to review the concern and also identified units at DTNA’s facility that used 4-piece fastener hubs (a different wheel hub component) where the locking tabs on the retainer washier were not bent inwards as required. From late April through early May 2024, the supplier continued to inspect other recently built vehicles at the DTNA manufacturing facility. Up to this point, the supplier’s investigation was focused on the rear axle and on May 6, 2024, it also began to analyze whether the issue may also be present on the front axle. A review of additional units could not confirm whether the locking tabs were correctly positioned. Thereafter, DTNA and the supplier continued to review the concern and DTNA conducted a detailed review of any potentially related reports and claims. On May 30, 2024, out of abundance of caution, DTNA decided to conduct a voluntary safety recall on the vehicles built within the above-mentioned manufacturing date range. DTNA is not aware of any warranty claims, field service reports, deaths, injuries or property damage claims related to wheel separations from this issue.
2 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| THOMAS BUILT BUSES | SAF-T-LINER C2 | 2025 |
| THOMAS BUILT BUSES | SAF-T-LINER EFX | 2025 |
2 Associated Documents
Recall 573 Report
RCLRPT-24V392-1535.PDF 214.941KB
Recall Acknowledgement
RCAK-24V392-4684.pdf 645.525KB
Latest Recalls Documents
- PRECISION - Ships pre-calibrated to +/- 4% accuracy and ready to use. Include calibration certificate with traceable serial number.
- DURABLE - Reinforced ratchet gear head constructed from hardened, heat treated Chrome Vanadium alloy steel.
- LONG-LASTING - Rust & corrosion protection with our unique and newly invented Electro-Black finish treatment.
- PERFORMANCE - Features an easy-to-read, highlighted yellow print dual-range scale. Identify the markings even in low-light conditions.
- COMFORTABLE - Comes with a reversible ratchet head that drives in both directions and measure torque in a clockwise direction.
- Durable Ratchet Head: Made from Hardened treated Chrome Vanadium steel alloy (Cr-V) Corrosion-Retardant: Satin Finish. Made in Taiwan
- Easy Storage: A sturdy plastic storage case is included. Non-Slip Grip: Knurled handle
- Easy to Read: High Contrast & Dual Range Scale. Accurate: Pre-Calibrated to ± 4%
- Accessories included: 1/2" Drive 5" long Extension Bar
- Simple and Reliable: “Click” sound tells the preset torque value is reached. Stop applying force when you hear and feel it.
- High Precision and Quick Reading: 3/8 torque wrench has high contrast and dual range scale( 5-45 Ft-Lb/6.8-61 Nm),making it clear and easy to read. We have professional torque wrench production technology, and after 20000 tests, the calibration error range of the torque wrench is around 3%, making it an essential helper for you
- Safe and Reliable Operation: Equipped with a bidirectional drive ratchet head, torque can be measured clockwise or counterclockwise. When the set torque value is reached, a "click" sound will remind you to stop applying force to prevent damage to the item due to excessive torque
- Good Quality and Durable Material: Made of hardened chromium vanadium steel alloy (Cr-V). At the same time, the bottom buckle tail plug adopts a red anodizing process to improve the product's oxidation resistance during use and enhance surface wear resistance. 72 tooth ratchet head, made of chromium molybdenum steel.We use the quality materials which are resist corrosion and are durable
- Quick Torque Setting: Simple and fast torque setting, pull down the locking knob and hold it down to rotate to the torque you need. Release the hand and the locking knob will automatically rebound to lock the torque value. And the designer referred to the appearance of the flashlight handle and designed a non slip and labor-saving knurled handle, making it more comfortable and easy to hold when using
- Easy to Store and Widely Use: You will receive the 3/8-inch drive click torque wrench with a sturdy plastic shell storage box, which is very delicate and durable. Torque wrench is suitable nuts and bolts on various occasions, such as bike, motorcycle, car spark, and torque wrench is suitable for repairing cars and motorcycles, which are essential maintenance tools for car owners
- Portability: durable case for portability or storage
- Added comfort: bi-material handle for comfort and grip
- Hassle free use: locking feature adjusts quick and easily for hassle free use
- Quick identification: scales stamped into housing showing inch and metric torque setting
- Meets or exceeds ASME specifications
- Includes 1-pc. 3/8 in. drive torque wrench; Storage case; Product manual with torque conversion chart
- Wrench emits a click that can be heard and felt when the preset value is reached
- Permanently marked, high-contrast dual-range scale is easy to read, even in low light
- Reversible ratchet head drives in both directions and measures torque in clockwise direction
- Durable all-steel construction has no plastic parts to break or wear out
- 3Pcs Torque Wrench Set: The calibration error range is around 3%, each torque wrench has a calibration certificate. The 3-in-1 torque wrench set can meet your different needs. Including 1/4 inch 20-240 in.lb, 3/8 inch 5-45 ft.lb, 1/2 inch 20-160 ft.lb.
- Safe and Reliable: When the 1/2 torque wrench reaches the preset torque value, it makes a clear "click" sound, accompanied by an obvious hand vibration that reminds you no longer to apply force, prevent damage caused. 72-tooth reversible ratchet head, it can be used both clockwise and counterclockwise directions.
- Quick Release Button: This 3/8 torque wrench has a quick release button with which accessories can easily be installed and removed, the accessories can grip and is not easy to fall down. It is more convenient to use. The torque wrench is made of CR-MO with a higher hardness.
- Easy to Set: First pull down the locking knob and hold it down and then start setting the desired torque value. Release the hand and the locking knob will automatically rebound to lock the torque value. If you do not use, please set the torque key to the minimal torque value.
- Widely Use: The torque wrenches can satisfy you in bicycle, motorcycle, car, truck and wheel screws, wheel nuts and in the device installation, electrical engineering, etc. We insist on bringing customers a good shopping experience.
- ±3% HIGH PRECISION AND COOL APPEARANCE: 1/2 inch drive torque wrench (10-170ft.-lb/13.6-230.5Nm)has a calibration error range of ±3%, high precision, and comes with a corresponding serial number, which is easy to trace the original data, and you can use it with confidence.Hairich torque wrench not only has superior quality but also has a superior appearance. The classic combination of black and red is fashionable and textured, allowing you to enjoy a visual feast during use.
- PREMIUM MATERIAL AND DURABLE: Experience the ultimate durability and antiskid with the torque wrench. The main body of Hairich torque wrench set is made of chrome vanadium steel alloy, which is more strong and more durable. The head of the inch-pound torque wrench adopts a ratchet design with a reversing device to improve work efficiency. The square knurled handle is made of aluminum titanium alloy, which is ergonomic and comfortable to hold for long-time use.
- DUAL SCALE AND QUICK SETTING: Laser Printed by dual-range（ft-lb and Nm). Our professional torque wrench is easy to read and provides direct unit conversion, When the set torque value is reached, the torque wrench will make an audible and felt click to remind you to stop applying force. Pull down the lock knob and hold it until the torque setting is completed. Release the hand, and the lock knob will automatically rebound back to lock the value.
- ERGONOMIC DESIGN AND POWERFUL: Every design of our industrial torque wrench conforms to ergonomic, easy to handle.72-tooth ratchet, 5° ratcheting arc head, a quick-release button for easy loading and unloading, and an aluminum non-slip handle for excellent grip and control. A recent research review that, 72-tooth ratchets are very professional tooth ratchets, you just only rotate 5 degrees to finish it. Not easy to slip and wear, can be used in small spaces, and is more durable and powerful.
- EASY OPERATION AND SAFETY: Thanks to its bidirectional drive ratchet head, our torque wrench can be measured both clockwise and counterclockwise. When the set torque value is reached, a "click" sound will remind you to stop applying force to prevent damage to the item due to excessive torque. Notice: At low Nm settings under 5 Nm the "click" sound can be too light to hear.
- Please contact us on Amazon Seller Support, we can give you 24h online after-sale service if you have any problem. We hope to help you solve and make you satisfied.
- !!!Attention!!!: 1,Torque wrench cannot be used to remove the nut, because the sudden torque for removing is much higher. 2,Keep the set value proper, avoid to set a small value but actual needs a bigger value, this can break the wrench 3, When not in use, always keep torque at the lowest setting. 2,when in use,keep the direction select in leftmost or rightmost position, not middle. 3,use just proper size socket and right direction button in case of skipping. 4,keep all the package well in case of returning in the future. 5,do not use excessive force during use to avoid affecting the accuracy of torque and even damaging the wrench.
- 【Easy to use】: Our torque wrench 1/2 feature high contrast and dual unit measurement for easy reading and setting of the required torque.Turn the bottom knob to make it in unlocked state, then turn the handle to set the torque, and finally lock the bottom knob.Adjusting the head paddle allows the 1/2 inch torque wrench to be used in both directions.
- 【Safe and reliable】: When the set torque value is reached, the automotive torque wrench will emits "Click" sound to remind you to stop applying force to prevent over torque damage to your items. Also the knurled handle provides non-slip operation.
- 【Practicality of accessories】: 1/2 inch Torque wrench set with 5-Inch extension bar and 1/2" drive to 3/8" drive adapter,which can help to take the screw or nut out in deep space.Use this dual direction torque wrench can easy to deal with car or bike repairing problem.
- 【High Precision & Easy Reading】With a dual-range scale of 20-240 in.lb/2.3-27.1 Nm, this inch pound torque wrench provides quick and precise readings, ideal for precision tasks in electronics, bicycles, and light machinery requiring lower torque levels.
- 【 "Click" Type】The 'Click' Type design of torque wrench produces a distinct sound or sensation to indicate when the fastener is properly tightened. When using the 1/4 torque wrench, turn it slowly, steadily, and smoothly, stopping when you hear or feel the click.
- 【Durable Construction】The aluminum shaft of this bike torque wrench offers superior fatigue resistance for higher and more precise usage compared to traditional materials. It also features a high-quality steel spring and chromium-molybdenum steel handle for rust prevention, ensuring durability and a longer lifespan.
- 【Easy Torque Setting】To set the torque value, pull down and hold the locking knob, then adjust to the desired value. Release the knob to lock the torque setting. When not in use, set the torque key to the minimum value to maintain the bicycle torque wrench.
- 【Convenient Storage & Versatile Use】This torque wrench set comes in a sturdy plastic shell storage box for convenient storage and organization. It is suitable for repairing various parts of a bicycle, including bolts, nuts, threaded components, handlebars, frames, brakes, and derailleurs. Additionally, it is backed by a 24-month warranty, with customer support available for any assistance needed.
- [𝐌𝐀𝐓𝐄𝐑𝐈𝐀𝐋] SUZUME torque wrenches are made of CR-V steel to ensure the durability of the torque wrench. The surface is also chrome-plated, which not only improves corrosion and wear resistance, but also gives the torque wrench set automotive a mirror-like luster, adding a touch of eye-catching beauty. For the handle, we chose a lightweight aluminum alloy, whose low-density characteristics greatly reduce the overall weight of the tool, making it easier to operate.
- [𝐇𝐈𝐆𝐇 𝐀𝐂𝐂𝐔𝐑𝐀𝐂𝐘]The SUZUME 3PCS torque wrench set, covering torque wrench 1/2 drive,torque wrench 3/8 drive and 1/4 torque wrench, is each a commitment to superior workmanship. After rigorous fatigue testing, this torque wrench kit can withstand more than 10,000 repeated uses and still maintain an incredible ±3% accuracy, which means you can use them with confidence and without worrying about re-calibration.
- [𝐋𝐨𝐮𝐝 𝐂𝐥𝐢𝐜𝐤] SUZUME torquimetro are designed with a bi-directional ratchet head that makes it easy to apply precise torque, whether you operate the wrench clockwise or counterclockwise. When your operation reaches the preset torque value, the wrench will immediately emit a clear "click" sound, accompanied by a vibration, to ensure that you can sense and stop the operation at the first time, avoiding damage to bolts, nuts and even torque wrench' due to excessive application of force.
- [𝐃𝐮𝐚𝐥-𝐒𝐜𝐚𝐥𝐞𝐬] precision at a glance! SUZUME strives for perfection in every detail of every product. Every click torque wrench is equipped with a clearly visible torque scale that makes setting and reading torque values effortless. We use laser printing technology to ensure the durability of these scales, so you don't have to worry about the values becoming blurred by wear and tear, even under frequent use over a long period of time.
- [𝐒𝐞𝐫𝐯𝐢𝐜𝐞]We understand that superior products and service are the key to earning your trust. That's why SUZUME products are backed by a comprehensive aftermarket service, our commitment to quality and your peace of mind. Our mission is very clear - 'Your Reliable Tool Partner' Our team will respond promptly to any questions you have and resolve your queries and problems quickly.
SEOCONTENT-START
OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-392
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Daimler Trucks North America, LLC MAY 31, 2024 NHTSA Recall No. : 24V-392 Manufacturer Recall No. : F1002 Manufacturer Information :
Manufacturer Name : Daimler Trucks North America, LLC Address : 4747 N. Channel Avenue
Portland OR 97217-3849
Company phone : 800-745-8000 Population :
Number of potentially involved : 106 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2025-2025 Thomas Built Buses SAF-T-LINER C2 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : This recall population includes certain model year 2025 TBB (Thomas Built Buses) SAF-T-LINER C2 and SAF-T-LINER EFX vehicles. The subject population includes vehicles equipped with axles that were manufactured at the Cummins Meritor facility in York, South Carolina. The vehicle population has been determined based on the information provided by Cummins Meritor and excludes vehicles with axles manufactured at other supplier facilities and before and after a supplier process change.
Production Dates : FEB 05, 2024 – APR 23, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2025-2025 Thomas Built Buses SAF-T-LINER EFX Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : This recall population includes certain model year 2025 TBB (Thomas Built Buses) SAF-T-LINER C2 and SAF-T-LINER EFX vehicles. The subject population includes vehicles equipped with axles that were manufactured at the Cummins Meritor facility in York, South Carolina. The vehicle population has been determined based on the information provided by Cummins Meritor and excludes vehicles with axles manufactured at other supplier facilities and before and after a supplier process change.
Production Dates : FEB 22, 2024 – FEB 27, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 24V-392 Page 2 Description of Defect :
Description of the Defect : A defect, which relates to motor vehicle safety, exists in certain model year 2025 Thomas Built Buses Saf-T-Liner C2 and EFX vehicles. The affected vehicles may be missing the snap ring on the preset hubs and/or have unbent retainer tabs on the conventional 4-piece fastener hubs. This could allow the wheel hub fasteners to loosen, creating excessive endplay in the wheel-end system.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : If the loose or missing hub fasteners are not addressed and progress to the
point of allowing excessive endplay in the wheel-end system, wheel separation may occur resulting in an increased risk of loss of vehicle control and a crash.
Description of the Cause : NR Identification of Any Warning
that can Occur : Wheels with excessive endplay may trigger anti-lock braking system (ABS) diagnostic trouble codes & may also result in hub oil leakage because of a failed hub seal. Involved Components : Component Name 1 : RETAINER RING,SNAP,PLUS,FL1
Component Description : Retainer Snap Ring (Preset Hub) Component Part Number : CM 10031172 Component Name 2 : WASHER – TANGED Component Description : Retainer Washer Component Part Number : 11-28988-000 Supplier Identification : Component Manufacturer
Name : Meritor Incorporation Address : 2135 West Maple
Troy Michigan 48084
Country : United States The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-392
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
Chronology :
On or about April 22, 2024, a vehicle being tested on a dynamometer at one of DTNA’s manufacturing plants experienced wheel end separation. The following day, DTNA notified the axle supplier of the incident and the supplier determined that the wheel on this vehicle separated because of a missing snap ring that should have been present in the preset wheel hubs. The supplier continued to review the concern and also identified units at DTNA’s facility that used 4-piece fastener hubs (a different wheel hub component) where the locking tabs on the retainer washier were not bent inwards as required. From late April through early May 2024, the supplier continued to inspect other recently built vehicles at the DTNA manufacturing facility. Up to this point, the supplier’s investigation was focused on the rear axle and on May 6, 2024, it also began to analyze whether the issue may also be present on the front axle. A review of additional units could not confirm whether the locking tabs were correctly positioned. Thereafter, DTNA and the supplier continued to review the concern and DTNA conducted a detailed review of any potentially related reports and claims. On May 30, 2024, out of abundance of caution, DTNA decided to conduct a voluntary safety recall on the vehicles built within the above-mentioned manufacturing date range. DTNA is not aware of any warranty claims, field service reports, deaths, injuries or property damage claims related to wheel separations from this issue.
Description of Remedy :
Description of Remedy Program : DTNA is preparing a remedy, which is currently under development.
Repairs will be performed free of charge by Daimler Truck North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter. Owners are directed to seek reimbursement through authorized dealers. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedy component will prevent excessive end play within the wheel hub assembly.
The supplier advised DTNA that axles produced after April 17, 2024 were subject to a different inspection process
Recall Schedule :
Description of Recall Schedule : NR
Planned Dealer Notification Date : JUN 20, 2024 – JUN 20, 2024
Planned Owner Notification Date : JUL 30, 2024 – JUL 30, 2024
* NR – Not Reported
**************************************************************************************************************
**************************************************************************************************************
SEOCONTENT-END
Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.