The 2020 Isuzu NPR HD has 5 recalls, the most serious involving rear wheel lug nuts that can loosen and allow a wheel to detach while driving, and rear axle U-bolt nuts that can loosen and cause the driveshaft to separate, cutting power to the rear wheels.
Two recalls affect Crew Cab models equipped with the 6.6L gasoline engine. In those trucks, the positive battery cable may run too close to the exhaust pipe, where heat can wear through the insulation and cause a short circuit or fire. Separately, the chassis wiring harness on those same Crew Cab models can chafe against the coolant return hose, potentially causing coolant to leak onto wiring and triggering a stall, electrical short, or fire. On the occupant safety side, certain trucks equipped with a dual-mode belt locking mechanism may not properly restrain an occupant in a crash.
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.
