The 2012 Isuzu NQR has 4 recalls, the most serious involving the left rear wheel hub, where loose locking bolts can allow the wheel assembly to shift outward from the axle, reducing braking performance and affecting vehicle control.
On gasoline-engine models, a software calibration error in the engine control module can cause cruise control to stay engaged even when the driver presses the brake pedal, provided the brake pedal switch has already failed. In normal operation the brake pedal cancels cruise control automatically, but if the switch malfunctions first, pressing the brake will not disengage it, leaving the truck holding its set speed. There are also two recalls covering the onboard fire extinguisher, which can fail to function properly when needed, reducing the ability to suppress a fire on the vehicle.
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 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.
At a glance
What can fail
A software error in the engine control module causes the cruise control to remain active even if the brake pedal switch fails or malfunctions, so pressing the brake pedal won't cancel cruise control.
What the fix does
Dealers will reprogram the engine control module software at no cost to restore normal cruise control operation.
Summarized — see the official notice for exact wording, dates, and contacts.
