CTS Sedan AWD V6-3.0L (2010)
9. Rotate the adjuster screw to retract the park brake shoes.
10. Remove the park brake shoe adjuster spring (1).
11. Spread the park brake shoes and remove the park brake shoe adjuster (1).
12. Disassemble the park brake shoe adjuster and lubricate the adjuster screw threads with high temperature brake lubricant.