2019–2023 Chevrolet 4500HD, 2019–2023 Chevrolet 5500HD, 2019–2023 Chevrolet 6500HD Recall: Brake pressure sensor assembly may leak brake fluid into the brake…
NHTSA campaign 23V266000 · Service Brakes, Hydraulic · filed Apr 13, 2023 · verified Jul 30, 2026
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.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — 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.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Affected vehicles
Related recalls
More Chevrolet 4500HD recalls
- 2021–2022 Chevrolet 4500HD and 4 other models — Hex flange lock nuts used in the suspension and steering…
- 2022 Chevrolet 4500HD and 2 other models — Pressure-sensor fitting of the primary hydraulic brake line…
- 2017–2020 Chevrolet 4500HD and 11 other models — U-bolt nuts for the rear axle may not have been properly…
- 2019–2020 Chevrolet 4500HD and 8 other models — Due to a manufacturing issue, the seat belt webbing locking…
- 2019–2020 Chevrolet 4500HD and 7 other models — Lug nuts on the rear outer wheels may not have been…
Other campaigns involving Chevrolet vehicles
- 2025–2026 Chevrolet Express and 1 other model — Steering gear assembly may have a nut that was not properly…
- 2026 Chevrolet Express and 1 other model — Gear shifter may provide inaccurate gear selection feedback…
- 2018 Chevrolet Silverado 1500 and 5 other models — Left-side or right-side roof rail air bag (RRAB) inflator…
Source: NHTSA recall database, campaign 23V266000 (manufacturer number N222375270). Data last verified Jul 30, 2026.