The 2022 Chevrolet 4500HD has 3 recalls, with two involving brake system fire and stopping distance risks: a brake pressure sensor assembly that can leak fluid and cause an electrical short capable of starting a fire, and a brake line fitting that may not be properly tightened and can leak fluid, extending stopping distances.
The third recall involves suspension and steering joint hardware where lock nuts can break and lose tension, causing steering instability that raises the risk of a crash.
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
Hex flange lock nuts in suspension and steering joints were improperly heat treated and may break.
What the fix does
Dealers will replace the affected hex flange lock nuts at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fitting that connects the pressure sensor to the primary brake line may not be tight enough, allowing brake fluid to leak out.
What the fix does
Dealers will tighten the brake pressure switch, flush out air from the brake system, and refill brake fluid.
Summarized — see the official notice for exact wording, dates, and contacts.
