WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Ratcheting Noise
Checks
Causes
Parking Brake Pawl (50-81)
The parking pawl return spring is weak, damaged, or misassembled