SERVICE BRAKES, HYDRAULIC
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.
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.
40,428 vehicles affected
EQUIPMENT
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.
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.
5,861 vehicles affected
PARKING BRAKE
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.
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.
39 vehicles affected
PARKING BRAKE:ELECTRICAL
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.
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.
39 vehicles affected