Chevrolet 5500HD, 6500HD +1 more: Service brakes — hydraulic

The hazard

An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.

What to do

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.