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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 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.

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.

Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain 2017-2020 NPR-HD, 2019-2020 NPR-XD, NQR, NRR, Chevrolet 4500HD, Chevrolet 5500HD and Chevrolet 5500XD, and 2020 Chevrolet 4500XD vehicles. The lug nuts on the rear outer wheels may not have been properly tightened when installed onto the rear axles.

If the lug nuts were not properly tightened, they can loosen, causing the to wheel separate from the vehicle, increasing the risk of a crash.

Isuzu will notify owners, and dealers will inspect the rear outer wheel lug nuts and tightening or replacing them as necessary, free of charge. The recall began December 20, 2019. Owners may contact Isuzu customer service at 1-866-441-9638 or Chevrolet customer service at 1-800-222-1020. Isuzu's number for this recall is V1906.

Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain 2019 Isuzu NPR-HD, NPR-XD, NQR, NRR, Chevrolet 4500HD, 4500XD, 5500HD, and 5500XD. The odometer accurately measures the distance traveled in miles, but erroneously indicates that they are kilometers in the LCD display instead of miles.

An incorrect odometer reading could lead to an unintended delay in critical safety related maintenance, potentially impairing the safe operation of the vehicle and increasing the risk of a crash.

Isuzu will notify customers and dealers to inspect the odometer LCD on their vehicle. If the distance traveled is listed as 'mi' (miles), the customer or dealer will be requested to inform Isuzu and the recall for that vehicle will be deemed complete. If the distance is listed as 'km' (kilometers), the customer will be requested to take the vehicle to the dealer, and the dealer will replace the meter cluster with one that indicates 'mi' (miles). The new odometer will be reprogrammed to reflect the number of miles traveled that was indicated on the original odometer. The recall began March 13, 2019. Isuzu owners may contact Isuzu customer service at 1-866-441-9638, GM owners may contact GM customer service at 1-800-862-4389.

Diesel Modification Center LLC. (Diesel Modification Center) is recalling certain 2018-2019 Isuzu NQR ,NRR, and NPR vehicles modified to be equipped with dual steering. The keystock may become dislodged from the steering cross shaft and cause unexpected loss of right hand steering.

Unexpected loss of steering increases the risk of a crash.

Diesel Modification Center will notify owners, and dealers will verify the keystock is in place or replace it, as necessary. In addition, the set screw will be retorqued and a stamp will be drifted in the keyed slot to ensure the keystock stays in the correct position, free of charge. The recall began November 11, 2019. Owners may contact Diesel Modification Center customer service at 1-256-457-1726.