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August 8, 2023 Service bulletin

Brake fluid leak at the brake pressure switch

Chevrolet technical service bulletin N232411300 for 2023 Chevrolet Silverado 5500, 2023 Chevrolet Silverado 4500 and 2023 Chevrolet Silverado 6500.

Bulletin number
N232411300
Component
Service brakes, hydraulic: brake fluid low warning: switch/sensor/float
Summary
Certain vehicles may have a brake fluid leak at the brake pressure switch. Dealers are to inspect the brake pressure switch for the suspect lot code 04523, replace the brake pressure switch if it has the suspect lot code or if the code is missing/unreadable. If there is evidence of a fluid leak, then replace both the brake pressure switch and brake jumper harness.

Owners of these vehicles have filed 3 complaints in the brakes category.

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