The 2020 Chevrolet 4500XD has 3 recalls, the most serious being two chassis-level issues: rear wheel lug nuts and rear axle U-bolt nuts that may not have been properly tightened at the factory, either of which can cause a wheel or driveshaft separation while driving.
On the wheel side, loose lug nuts on the rear outer wheels can allow a wheel to detach from the vehicle entirely, creating a serious crash hazard for the truck and anything nearby. The U-bolt issue is related but distinct: the U-bolts clamp the rear leaf spring pack to the axle, and if those nuts back off, the axle can shift out of alignment. When that happens, the driveshaft can separate, cutting power to the rear wheels and potentially stalling the vehicle in traffic. The third recall involves the front seatbelt assemblies on trucks equipped with a dual-mode belt locking mechanism. The webbing or locking system can fail to properly restrain an occupant in a crash, raising the risk of injury to the driver or front passenger.
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 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.
