Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Service Brakes, Hydraulic. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
1 reports
59,500 miles · Jan 2, 2025
Service Brakes, Hydraulic
The contact owns a 2023 GM GM515. The contact stated that the vehicle was designed with a 12-Volt power brake booster auxiliary pump. The contact stated that upon parking and turning off the vehicle, the power brake booster auxiliary pump was running and making a loud sound. The contact stated that upon starting the vehicle, the…
Read full complaint
The contact owns a 2023 GM GM515. The contact stated that the vehicle was designed with a 12-Volt power brake booster auxiliary pump. The contact stated that upon parking and turning off the vehicle, the power brake booster auxiliary pump was running and making a loud sound. The contact stated that upon starting the vehicle, the pump stopped running; however, the failure recurred while the vehicle was turned off. The brake warning light was illuminated. The contact stated that upon disconnecting the power brake booster auxiliary pump wiring cable, the failure ceased; however, the failure recurred upon reconnecting the power brake booster auxiliary pump wiring cable. The vehicle was taken to the dealer, where it was diagnosed that the brake pressure switch was faulty due to brake fluid intrusion. The dealer informed the contact that the vehicle was not covered under GM Campaign Number: N222375270. The dealer replaced the brake pressure switch. The vehicle was repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 59,500.
General Motors (GM) is recalling certain 2019-2024 Chevrolet Silverado Medium Duty 4500HD, 5500HD, and 6500HD vehicles. The brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause a short circuit.
Consequence & remedy
Consequence: 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 brake pressure switch wire harness, free of charge. Owner notification letters were mailed September 11, 2025. Owners may contact GM customer assistance number at 1-866-467-9700. GM's number for this recall is N242482680. Vehicles in this recall that were previously repaired under 23V266 will need to have the new remedy completed.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2023 Chevrolet Silverado 4500 Problems, Complaints & Recalls | Skip That Year
Illustration