Parking Brake Cable Adjuster Enabling

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Hold the park brake pedal in the FULL upward position.

Fig 1: Screwdriver, Pedal Drum & Pedal Assembly

Courtesy of GENERAL MOTORS CORP.

Pull rearward on the front park brake cable until the tension is released from the tool (1) installed in the pedal assembly.
Remove the tool (1).
Slowly release the park brake cable until it returns to its original position.
Release the park brake pedal.
Lower the vehicle.
Apply and release the park brake pedal 3 times.