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Home >> Chevrolet >> 2021 >> Trailblazer ACTIV, FWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Brake Master Cylinder Reservoir Replacement (Attached) >> Installation Procedure

Installation Procedure

  1. GM5286276Courtesy of GENERAL MOTORS COMPANY

    Ensure the filter element (1) is installed in the correct hydraulic bore with the pin on the filter element installed in the correct bore.

  2. GM5225116Courtesy of GENERAL MOTORS COMPANY

    Lubricate the brake master cylinder reservoir grommets (1) with brake fluid. Adhesives, Fluids, Lubricants, and Sealers 

  3. Brake Master Cylinder Reservoir Grommet (1) - Install NEW [3x]
  4. GM5225114Courtesy of GENERAL MOTORS COMPANY

    Install the attached brake master cylinder reservoir (1) by engaging the rear clip and lowering the front.

  5. GM5225113Courtesy of GENERAL MOTORS COMPANY

    Brake Master Cylinder Reservoir Bolt (1) - Install and tighten 5-6 N.m (44-53 lb in)

  6. GM5225111Courtesy of GENERAL MOTORS COMPANY

    Brake Master Cylinder Reservoir - Upper (2) - Install - Brake Master Cylinder Reservoir Replacement (Attached) 

  7. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  8. Bleed the brake system. Hydraulic Brake System Bleeding (Pressure) 
  9. Fill the brake master cylinder reservoir to the maximum-full level with GM approved brake fluid from a clean, sealed brake fluid container. Brake Master Cylinder Reservoir Filling 
  10. Check for brake system leaks.