GM Service Manual Online
For 1990-2009 cars only
  1. Block the wheels.
  2. Place the hand lever in the OFF position.
  3. Rotate the knurled knob on the hand lever counterclockwise to the end of the knurled knob's travel.
  4. Make the lining wear and linkage adjustments. Refer to Parking Brake Shoe Adjustment .
  5. Place the hand lever in the ON position.
  6. Rotate the knurled knob clockwise in order to adjust the lever operating effort so that a force of 32 kg (70  lbs) to 41 kg (90 lbs) must be exerted on the lever in order to move the lever over-center from the OFF position to the ON position.
  7. Check the parking brake operation and holding ability.
  8. Remove the wheel blocks.