The problem
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.
The 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.
The fix
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.
Recall details
| NHTSA campaign | 21V-194 (21V194000) |
|---|---|
| Manufacturer number | V2103 |
| Manufacturer | General Motors, LLC |
| Component | Suspension › Rear › Springs › Leaf spring assembly › U-bolt, leaf spring to axle |
| Report date | March 19, 2021 |
| Owners notified | April 23, 2021 |
| Vehicles affected | 258 |
| Initiated by | Manufacturer |
Vehicles covered
- 2019 Chevrolet 4500HD
- 2020 Chevrolet 4500HD
- 2020 Chevrolet 4500XD
- 2019 Chevrolet 5500HD
- 2020 Chevrolet 5500HD
- 2020 Chevrolet 5500XD
- 2015 Isuzu NPR
- 2016 Isuzu NPR
- 2017 Isuzu NPR
- 2016 Isuzu NPR HD
- 2017 Isuzu NPR HD
- 2018 Isuzu NPR HD
- 2019 Isuzu NPR HD
- 2020 Isuzu NPR HD
- 2016 Isuzu NPR XD
- 2017 Isuzu NPR XD
- 2018 Isuzu NPR XD
- 2019 Isuzu NPR XD
- 2020 Isuzu NPR XD
- 2016 Isuzu NQR
- 2017 Isuzu NQR
- 2018 Isuzu NQR
- 2019 Isuzu NQR
- 2020 Isuzu NQR
- 2016 Isuzu NRR
- 2017 Isuzu NRR
- 2018 Isuzu NRR
- 2019 Isuzu NRR
- 2020 Isuzu NRR
- 2015 Isuzu Reach
- 2016 Isuzu Reach
- 2017 Isuzu Reach
Plus 8 other model/year combinations not covered on this site.
Frequently asked questions
Is the recall 21V-194 repair free?
Yes. Chevrolet dealers will fix the problem at no cost: 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.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 258 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.