01 / OFFICIAL CAMPAIGNS
2022 Chevrolet 4500HD recall campaigns
NHTSA 23V266000
- Component
- SERVICE BRAKES, HYDRAULIC
- Report received
- April 13, 2023
- Potential units
- 40,428campaign-wide
Defect and consequence
Defect: General Motors. LLC (GM) is recalling certain 2019-2023 Chevrolet 4500HD, 5500HD, and 6500HD Medium-Duty trucks. The brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause an electrical short-circuit.
Why it matters: An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Remedy
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the master cylinder pressure sensor and inspect the wire harness, replacing it, if necessary, free of charge. Owner notification letters were mailed July 11, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222375270.
Owner notification: July 11, 2023 · Filing manufacturer: General Motors, LLC
NHTSA 22V874000
- Component
- EQUIPMENT
- Report received
- November 23, 2022
- Potential units
- 5,861campaign-wide
Defect and consequence
Defect: General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet 4500HD/5500HD/6500HD vehicles. The hex flange lock nuts used in the suspension and steering joints, were improperly heat treated and may break.
Why it matters: Broken hex flange lock nuts may cause a loss of tension, leading to steering instability, and increasing the risk of a crash.
Remedy
Dealers will replace the hex flange lock nuts as necessary, free of charge. Interim owner notification letters informing owners of the safety risk were mailed December 27, 2022. Owner notification letters were mailed February 10, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222391080.
Owner notification: February 10, 2023 · Filing manufacturer: General Motors, LLC
NHTSA 22V364000
- Component
- PARKING BRAKE
- Report received
- May 20, 2022
- Potential units
- 39campaign-wide
Defect and consequence
Defect: General Motors, LLC (GM) is recalling certain 2022 4500HD, 5500HD, and 6500HD vehicles. The pressure-sensor fitting of the primary hydraulic brake line assembly may not be tightened correctly, which could result in a brake fluid leak.
Why it matters: A brake fluid leak can extend the distance required to stop the vehicle, increasing the risk of a crash.
Remedy
Dealers will tighten the brake pressure switch, bleed the brake system, and top-off the brake fluid, free of charge. Owner notification letters were mailed June 23, 2022. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222368230.
Owner notification: June 23, 2022 · Filing manufacturer: General Motors, LLC
02 / COMPONENT BREADTH