The 2020 Isuzu NPR HD has 5 recalls, with the most serious being rear wheels that can separate from the vehicle if lug nuts were not properly tightened during assembly, creating a crash risk at any speed.
Two electrical recalls affect Crew Cab models with the 6.6L gasoline engine. The chassis wiring harness can chafe against the coolant hose running from the radiator to the reservoir, and if the hose wears through, leaking coolant can damage nearby wiring and cause the engine to stall or trigger an electrical short that may start a fire. On the same Crew Cab gasoline models, the positive battery cable runs too close to the right-side exhaust pipe, and sustained heat from the exhaust can degrade the cable's insulation over time, exposing bare wire and raising the risk of a short circuit or fire. On the suspension side, U-bolt nuts securing the rear axle to the leaf spring assembly may not have been fully tightened and can loosen over time, allowing the rear axle to shift out of alignment. When the axle moves, the driveshaft can separate from the drivetrain entirely, cutting power to the rear wheels and stalling the vehicle while in traffic. There is also a seatbelt concern on certain models equipped with a dual-mode belt locking mechanism: the front seatbelt webbing may not restrain an occupant properly in a crash, raising the risk of injury.
At a glance
What can fail
The nuts that secure the rear axle U-bolts may not have been tightened properly and can loosen over time, causing the rear axle to shift out of alignment.
What the fix does
Dealers will inspect the rear axle U-bolt nuts and tighten or replace them as needed to secure the axle properly.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The positive battery cable connecting to the starter may be too long and routed too close to the right-side exhaust pipe, creating a potential failure point.
What the fix does
The positive battery cable will be adjusted to correct routing and length away from the exhaust pipe.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The chassis wiring harness and coolant return hose may rub against each other. Over time, chafing can puncture the hose, leaking coolant, or damage the harness, causing an electrical short.
What the fix does
Dealers will adjust the positive cable to prevent chafing between the harness and hose. The repair is free of charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The seat belt webbing locking mechanism may fail to properly restrain occupants due to a manufacturing defect.
What the fix does
Dealers will inspect and replace the seat belt assembly as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The lug nuts securing the rear outer wheels may not have been properly tightened during installation on the rear axles.
What the fix does
Dealers will inspect the rear outer wheel lug nuts and tighten or replace them as needed, at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
