System: brakes; hydraulic; hose.vehicle description: passenger vehicles.note: if your vehicle IS presented to an authorized dealer on an agreed servicedate and the remedy IS not provided within a reasonable time without charge orthe remedy does not correct the safety-related defect or noncompliance, pleasecontact the appropriate service center ( buick at 1-800-458-8006, pontiac at1-800-763-2737; oldsmobile at 1-800-442-6537; or chevrolet at 1-800-222-1020 ).also contact the national highway traffic safety administration's auto safetyhotline at 1-800-424-9393.