The 2012 Isuzu NPR HD has 4 recalls, the most serious being a stuck accelerator pedal on gasoline-engine models that can lock the throttle wide open, making the truck extremely difficult to slow or stop.
On gasoline-powered trucks, the throttle pedal can catch under a steel stopper bolt and stay pinned at full throttle, leaving the driver fighting to bring the vehicle to a stop while it continues to accelerate. A separate drivetrain concern affects the left rear wheel: the hub locking bolts may not have been tightened properly at the factory, allowing the entire wheel assembly to work its way outward along the axle. As it shifts out of position, the truck becomes harder to steer predictably and braking distance increases, both of which raise the risk of a crash. There are also two recalls involving the onboard fire extinguisher, which may fail to function correctly if a fire breaks out in or around the truck, leaving the driver without a working means to suppress a fire before it spreads.
At a glance
What can fail
The plastic-handle fire extinguisher may clog and fail to discharge, require excessive force to activate, or have a nozzle that detaches forcefully, potentially causing injury.
What the fix does
Replace the fire extinguisher with a free replacement unit from Walter Kidde.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The throttle pedal can get stuck under the steel stopper bolt, causing it to remain at full throttle and stay pressed down.
What the fix does
The dealer will remove the stopper bolt and install a flanged plate to prevent the throttle pedal from moving sideways.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The bolts that lock the left rear wheel bearing hub may not have been tightened properly during manufacturing, which could cause them to loosen.
What the fix does
Dealers will inspect the left rear wheel bearing hub bolts and tighten them as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Certain Kidde model FC10 plastic valve fire extinguishers equipped on these trucks may fail to discharge when the lever is pressed.
What the fix does
Replace the fire extinguisher with a replacement unit at no cost from Kidde Safety or through an Isuzu dealer.
Summarized — see the official notice for exact wording, dates, and contacts.
