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Chevrolet U-bolt nuts for the rear axle may not have been properly tightened and may loosen, causing the axle to misalign.

NHTSA campaign 21V-194 · Reported March 19, 2021 · 258 vehicles affected

AFFECTED MODELS
Chevrolet 4500HD, 4500XD, 5500HD, 5500XD, NPR, NPR-HD, NPR-XD, NQR, NRR and REACH
VEHICLES AFFECTED
258
REMEDY
Isuzu will notify owners, and dealers will inspect and, if needed, replace and tighten the rear axle U-bolt nuts, free of charge.
COST
Free

The short version

Isuzu Technical Center of America, Inc. reported a problem with the leaf spring assembly u-bolt, leaf spring to axle. Here is what owners need to know.

WHAT

The U-bolt nuts for the rear axle may not have been properly tightened and may loosen, causing the axle to misalign.

WHY IT MATTERS

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.

WHAT TO DO

Isuzu will notify owners, and dealers will inspect and, if needed, replace and tighten the rear axle U-bolt nuts, free of charge.

Affected vehicles

These model years are included in NHTSA campaign 21V-194.

YEAR RANGEMODEL
2017–2020Chevrolet 4500HD
2017–2020Chevrolet 4500XD
2017–2020Chevrolet 5500HD
2020Chevrolet 5500XD
2015–2017Isuzu NPR
2016–2020Isuzu NPR-HD
2016–2020Isuzu NPR-XD
2016–2020Isuzu NQR
2016–2021Isuzu NRR
2015–2017Isuzu REACH

What changed

Newest first. The record shows both when the recall began and what has changed since.

  1. Recall reported to NHTSA. LATEST

Drive one of these? Check your VIN to see if your specific vehicle is affected.

Check your VIN

What this record means

Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.

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MyAutoRecalls is not affiliated with Isuzu Technical Center of America, Inc. or the National Highway Traffic Safety Administration.