March 19, 2021 NHTSA CAMPAIGN NUMBER: 21V194000
Rear Axle U-Bolt Not Properly Tightened
The misalignment may cause the propeller shaft to separate, causing a loss of power to the rear wheels and a stall, increasing the risk of a crash.
NHTSA Campaign Number: 21V194
Manufacturer Isuzu Technical Center of America, Inc.
Components SUSPENSION
Potential Number of Units Affected 258
Summary
Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain 2015-2017 Isuzu NPR, Reach, 2016-2020 Isuzu NPR XD, NPR HD, NQR, 2016-2021 Isuzu NRR, 2017-2020 Chevrolet 4500XD, 4500HD, 5500HD, and 2020 Chevrolet 5500XD vehicles. The U-bolt nuts for the rear axle may not have been properly tightened and may loosen, causing the axle to misalign.
Remedy
Isuzu will notify owners, and dealers will inspect and, if needed, replace and tighten the rear axle U-bolt nuts, free of charge. The recall is expected to begin April 23, 2021. Owners may contact Isuzu customer service at 1-866-441-9638. Isuzu’s number for this recall is V2103.
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.safercar.gov.
Check if your Isuzu Truck has a Recall
Frequently Asked Questions (FAQs) for Safety Recall N212333830 Rear Axle U-Bolt Nuts
These questions and answers are being provided to help GM dealers respond to inquiries from involved vehicle owners about the Safety recall identified above.
| Q1) | Which vehicles are involved? |
| A1) | Certain 2017 Chevrolet LCF 4500HD, 4500XD, 5500HD and 2020 Chevrolet LCF 4500HD, 4500XD, 5500HD, and 5500XD Trucks.
|
| Q2) | What is the issue or condition? |
| A2) | The U-bolt nuts for the rear axle may not have been properly tightened at the manufacturing plant.
|
| Q3) | What symptoms may be experienced? What warning signs may be associated with the issue or condition described? |
| A3) | Drivers may notice the rear axle out of place during the pre-trip inspection and would hear a loud noise if the propeller shaft separated during use.
|
| Q4) | What is the remedy/repair? |
| A4) | Dealers will inspect and, if needed, replace and tighten the rear axle U-bolt nuts.
|
| Q5) | What is the safety risk? Is the vehicle safe to drive? |
| A5) | The U-bolts and U-Bolt nuts secure the rear axle to the leaf spring. If the U-Bolt nuts loosen, the axle will initially be held in place by the leaf spring centering pin. With continued use, the axle can misalign with the centering pin, allowing the rear axle to move rearward and the propeller shaft to separate at its slip joint. If the propeller shaft separates, the rear wheels will not receive power from the engine and the vehicle will stall, increasing the risk of a crash.
|
| Q6) | Does the customer have to pay for this remedy/repair? |
| A6) | No, this inspection/repair will be done at no cost to the customer.
|
| Q7) | Is the remedy/repair available now? |
| A7) | An inspection is available that allows dealers to close the field action if a vehicle passes. When a sufficient quantity of parts are available dealers can begin repairing vehicles.
|
| Q8) | What should customers do until recall repairs can be completed? Are there any special instructions? |
| A8) | If special instructions are provided, they will be included in the notification letters to customers.
|
| Q9) | How can customers check to see if their vehicle is involved in this field action? |
| A9) | Customers who own a vehicle involved in the field action will be notified by mail by General Motors, but they may also check their Vehicle Identification Number (VIN) for field actions in GM Owner Center at https://my.gm.com/recalls or via NHTSA’s website at https://vinrcl.safercar.gov/vin/.
|
GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5724
URGENT – DISTRIBUTE IMMEDIATELY
Date: March 19, 2021
Subject: N212333830 – Safety Recall
Rear Axle U-Bolt Nuts
Models: 2017 LCF 4500HD, LCF 4500XD, LCF 5500HD,
2020 LCF 4500HD, LCF 4500XD, LCF 5500HD, LCF 5500XD
To: All General Motors Medium Duty Dealers
General Motors is releasing Safety Recall N212333830 today. The total number of U.S. vehicles involved is approximately 93. Please see the attached bulletin for details.
Question and Answer Document (Q&A)
Attached to this message you will find a document that addresses the nine most likely questions customers may have regarding this Safety Recall. Please use this information as an aid to confidently answer customer concerns.
Customer Letter Mailing
The customer letter mailing will begin in April 2021.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will be updated March 20, 2021 or sooner. A list of involved vehicles in dealer new inventory is attached to this message. Please hold all warranty transactions until IVH has been updated.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS
40 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CHEVROLET | 4500HD | 2017-2020 |
| CHEVROLET | 4500XD | 2017-2020 |
| CHEVROLET | 5500HD | 2017-2020 |
| CHEVROLET | 5500XD | 2020 |
| ISUZU | NPR | 2015-2017 |
| ISUZU | NPR HD | 2016-2020 |
| ISUZU | NPR XD | 2016-2020 |
| ISUZU | NQR | 2016-2020 |
| ISUZU | NRR | 2016-2021 |
| ISUZU | REACH | 2015-2017 |
7 Associated Documents
Miscellaneous Document- Chronology
RMISC-21V194-6065.pdf 682.729KB
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Open in new tab Recall Acknowledgement
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Manufacturer Notices(to Dealers,etc)
RCMN-21V194-6556.pdf 116.153KB
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Remedy Instructions and TSB
RCRIT-21V194-2816.pdf 460.745KB
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Defect Notice 573 Report
RCLRPT-21V194-8479.PDF 221.924KB
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Manufacturer Notices(to Dealers,etc)
RCMN-21V194-4872.pdf 100.933KB
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Manufacturer Notices(to Dealers,etc)
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Latest Recalls Documents
https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V194&docType=RCL
For the most up to date documents from NHTSA for this Recall, click the lick above
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- 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.
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- 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.
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- Easy Storage: A sturdy plastic storage case is included. Non-Slip Grip: Knurled handle
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Last update on 2021-04-19 / Affiliate links / Images from Amazon Product Advertising API
Last update on 2021-04-19 / Affiliate links / Images from Amazon Product Advertising API
