CTS Wagon RWD V6-3.6L (2010)
7. Place the brake caliper piston (1) in the brake caliper housing bore and press the brake caliper piston squarely into the brake caliper.
8. Install the brake caliper. Refer to Rear Brake Caliper Replacement (JE5, J55) (See: Removal and Replacement/Rear Brake Caliper Replacement
(JE5, J55))Rear Brake Caliper Replacement (J56) (See: Removal and Replacement/Rear Brake Caliper Replacement (J56)).