ISUZU NRR

SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE

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.

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.

SEAT BELTS:FRONT:WEBBING

Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain 2020 Isuzu NPR HD, NPR XD, NQR and NRR and Chevrolet 4500HD, 4500XD, 5500HD and 5500XD and 2019 Isuzu NPR HD GAS, NPR GAS and Chevrolet 4500 and Chevrolet 3500 vehicles equipped with a dual mode belt locking mechanism seat belt assembly. Due to a manufacturing issue, the seat belt webbing locking mechanism may not properly restrain the occupant as intended.

Risk: In the event of a crash, if the occupant is not properly restrained, there is an increased risk of injury.

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

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.

Risk: 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.

WHEELS:LUGS/NUTS/BOLTS/STUDS

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.

Risk: 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.

STEERING

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.

Risk: Unexpected loss of steering increases the risk of a crash.

POWER TRAIN:AXLE HUBS

Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain 2011-2016 NPR, 2011-2017 NPR-HD, NQR, NRR, 2015-2017 NPR-XD, 2012-2016 Reach, NPR Gas and NPR-HD Gas incomplete trucks. The left rear wheel bearing hub locking bolts may not have been properly tightened during assembly.

Risk: The loose bolts can allow the wheel assembly to move outward from the axle housing, affecting the control of the vehicle and reducing braking performance, thereby increasing a risk of a crash.

EQUIPMENT

Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain 2011-2017 Isuzu NPR, 2008 NPR HD and NPR-HD Gas, 2011-2018 NPR HD and NRR, 2015-2018 NPR XD, 2012-2018 NQR, 2012-2017 NPR Gas and NPR-HD Gas, 2016-2017 Chevrolet Low Cab Forward 3500 HD, 3500 and 4500 and 2017-2018 Chevrolet Low Cab Forward 4500 HD, 4500 XD, 5500 HD and 5500 XD vehicles, equipped with certain Walter Kidde Plastic-Handle Fire Extinguishers, models FC10 and FC110. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or excessive force may be needed to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable.

Risk: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.

POWER TRAIN

Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain 2015-2017 NPR HD, NPR XD, NQR and NRR trucks. During manufacturing, the stamping equipment may have created burrs on the frame crossmember that the transmission is mounted to. These burrs may cause the transmission mounting studs to break.

Risk: If the studs break, the transmission may not be properly supported, preventing it from shifting correctly and increasing the risk of a crash.

EQUIPMENT:OTHER:LABELS

Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain model year 2016 NPR-HD, NPR-XD, NQR, and NRR trucks manufactured July 3, 2015, to September 2, 2015 and equipped with 5.2L diesel engines. The certification label on the affected vehicles may have typographical errors in the rim size, tire pressure and weight information that may prevent the owner from accurately loading and maintaining the vehicle. As such, these vehicles fail to comply with the requirements of 49 CFR Part 567, "Certification."

Risk: If the rim size, tire pressure and weight information cannot be referenced and understood, the owner may overload the vehicle or underinflate the tires. These conditions may increase the risk of a crash.