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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 258 (Hydraulic Brakes) >> Repair Instructions >> Brake Master Cylinder Replacement - With Power Brake Booster and Electronic Brake Control Module (with MJK) >> Single Use Fasteners and Components

Single Use Fasteners and Components

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:

The battery must be disconnected to prevent the brake master cylinder from pressurizing the hydraulic system during its automated self diagnostic tests that can possibly occur when a door is opened or the key transmitter is activated. Failure to follow this precaution may cause personal injury.

CAUTION:

If the brake master cylinder has been physically dropped, immediately discard the unit and replace with a new brake master cylinder regardless if any physical damage is visible. A damaged brake master cylinder could cause the braking system to not operate properly.