NHTSA vehicle safety data
2020 Chevrolet Silverado 4500
The 2020 Chevrolet Silverado 4500 has 2 NHTSA recalls and 1 owner complaint on record — every open recall is repaired free at an authorized Chevrolet dealer.
Complete safety data for the 2020 Chevrolet Silverado 4500. Data pulled live from api.nhtsa.gov.
SERVICE BRAKES, HYDRAULIC:POWER ASSIST
NHTSA #25V768000Reported November 6, 2025 · General Motors, LLC
Defect description
General Motors, LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado Medium Duty 4500HD, 5500HD, and 6500HD vehicles. These vehicles were remedied under NHTSA Recall 25V390 with a brake jumper wire harness that was assembled without protective tape. A wiring harness that is missing protective tape can allow the wires to become damaged.
Safety consequence
Damaged brake jumper wires can result in power brake assist failure, increasing the risk of a crash.
Free manufacturer remedy
Dealers will remove the installed wire harness, apply protective tape, and reinstall the wire harness, free of charge. Owner notification letters are planned to be mailed December 22, 2025. Owners may contact GM customer assistance number at 1-866-467-9700. GM's number for this recall is N252531990. Vehicles in this recall were previously repaired under 25V390 and will need to have the new remedy completed. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov beginning November 6, 2025.
SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING:SWITCH/SENSOR/FLOAT
NHTSA #25V390000Reported June 12, 2025 · General Motors, LLC
Defect description
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.
Safety consequence
An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Free manufacturer 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.