Removal Procedure

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

Turn the ignition to the OFF position.
Remove dash upper extension panel opening cover. refer to Dash Upper Extension Panel Opening Cover Replacement .
NOTE:
Do NOT disconnect engine coolant hoses.

Remove the radiator surge tank clip (2).
Remove the radiator surge tank (1) and position aside.

CAUTION:

Always connect or disconnect the wiring harness connector from the EBCM/EBTCM with the ignition switch in the OFF position. Failure to observe this precaution could result in damage to the EBCM/EBTCM.

Disconnect the electrical connector from the EBCM/EBTCM.
NOTE:
Cap the brake pipe fittings to prevent brake fluid loss and contamination.

Remove the 6 brake pipes (1, 2) from the BPMV.
NOTE:
Cap the brake pipe fittings to prevent brake fluid loss and contamination.

Disconnect the master cylinder secondary brake pipe fitting (1).
NOTE:
Cap the brake pipe fittings to prevent brake fluid loss and contamination.

Disconnect the master cylinder primary brake pipe fitting (1).
Remove the BPMV bracket bolts (2).
Remove the BPMV bracket assembly (1).
Remove the brake master cylinder assembly from the booster. Refer to Brake Master Cylinder Replacement .
Remove the booster vacuum pipe (1) from the booster.
Disconnect the brake pedal pushrod (1) from the brake pedal.
Replace click fit connector (1) between booster pushrod and brake pedal with NEW part.
Remove the brake booster bolts (1).
Remove the booster from the vehicle.