NHTSA Recall 21V194000: U-bolt, leaf spring to axle (suspension)
Isuzu Technical Center of America, Inc. reported this safety recall to NHTSA on , covering an estimated 258 vehicles. It affects 12 models including the Chevrolet 4500HD.
| NHTSA campaign | 21V194000 |
|---|---|
| Manufacturer campaign | V2103 |
| Component | SUSPENSION › REAR › SPRINGS › LEAF SPRING ASSEMBLY › U-BOLT, LEAF SPRING TO AXLE |
| Report received | March 19, 2021 |
| Owner notification | April 23, 2021 |
| Initiated by | Manufacturer |
Defect
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.
Safety risk
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.
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 began on 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.
Vehicles covered by recall 21V194000
| Make and model | Model years |
|---|---|
| Chevrolet 4500HD | 2017, 2018, 2019, 2020 |
| Chevrolet 4500XD | 2017, 2018, 2019, 2020 |
| Chevrolet 5500HD | 2017, 2018, 2019, 2020 |
| Chevrolet 5500XD | 2020 |
| International Motors Chevy 4500HD | 2019, 2020 |
| International Motors Chevy 5500HD | 2019, 2020 |
| Isuzu Npr | 2015, 2016, 2017 |
| Isuzu Npr HD | 2016, 2017, 2018, 2019, 2020 |
| Isuzu Npr XD | 2016, 2017, 2018, 2019, 2020 |
| Isuzu Nqr | 2016, 2017, 2018, 2019, 2020 |
| Isuzu Nrr | 2016, 2017, 2018, 2019, 2020, 2021 |
| Isuzu Reach | 2015, 2016, 2017 |
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.