The 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.
The risk
An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
The 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Chevrolet 4500HD | 2019, 2020, 2021, 2022, 2023 |
| Chevrolet 5500HD | 2019, 2020, 2021, 2022, 2023 |
| Chevrolet 6500HD | 2019, 2020, 2021, 2022, 2023 |
Components: SERVICE BRAKES, HYDRAULIC
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Chevrolet 4500HD | 2019 | 0 | 4 |
| Chevrolet 4500HD | 2020 | 0 | 4 |
| Chevrolet 4500HD | 2021 | 1 | 2 |
| Chevrolet 4500HD | 2022 | 0 | 3 |
| Chevrolet 4500HD | 2023 | 0 | 1 |
| Chevrolet 5500HD | 2019 | 6 | 3 |
| Chevrolet 5500HD | 2020 | 0 | 4 |
| Chevrolet 5500HD | 2021 | 0 | 2 |
| Chevrolet 5500HD | 2022 | 0 | 3 |
| Chevrolet 5500HD | 2023 | 0 | 1 |
| Chevrolet 6500HD | 2019 | 1 | 1 |
| Chevrolet 6500HD | 2020 | 0 | 1 |
| Chevrolet 6500HD | 2021 | 0 | 1 |
| Chevrolet 6500HD | 2022 | 0 | 3 |
| Chevrolet 6500HD | 2023 | 0 | 1 |
Other service brakes, hydraulic recalls in 2023
32 of the 894 recall campaigns reported to NHTSA in 2023 concerned the service brakes, hydraulic; General Motors, LLC filed 186 campaigns in all.
| 23V800000 28 Nov 2023 | Ford Motor Company |
| 23V789000 22 Nov 2023 | Jaguar Land Rover North America, LLC |
| 23V791000 22 Nov 2023 | Nissan North America, Inc. |
| 23V779000 20 Nov 2023 | CFMOTO POWERSPORTS, INC. |
| 23V732000 1 Nov 2023 | Mercedes-Benz USA, LLC |
| 23V730000 31 Oct 2023 | Triumph Motorcycles America, Ltd. |
| 23V679000 11 Oct 2023 | Tesla, Inc. |
| 23V672000 4 Oct 2023 | Harley-Davidson Motor Company |
NHTSA recalls (public domain) · all recalls of 2023