The 2019 Chevrolet 4500HD has 4 recalls, with the most serious being a brake pressure sensor that can leak fluid into the brake switch, creating an electrical short that may start a fire while the truck is moving or parked.
Two recalls involve rear axle hardware that was not properly secured at the factory. The U-bolts holding the rear leaf spring assembly to the axle may be loose, allowing the axle to shift out of alignment; if that happens, the driveshaft can separate and the truck loses power to the rear wheels and stalls. Separately from that, the lug nuts on the rear outer wheels may also be loose, and a wheel can detach from the truck entirely while driving. A fourth recall covers the front seatbelts on trucks equipped with a dual-mode belt locking mechanism. The webbing in that assembly can fail to properly restrain an occupant in a crash, raising the risk of injury.
At a glance
What can fail
The brake pressure sensor assembly may leak brake fluid into the brake pressure switch, causing an electrical short-circuit.
What the fix does
Dealers will replace the master cylinder pressure sensor and inspect and replace the wire harness if needed, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
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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.
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.
