How do you open up rear calipers on 2005 spectra?

To open up the rear calipers on a 2005 Kia Spectra, you'll need to use a brake caliper tool or a C-clamp to retract the caliper piston. First, ensure the vehicle is safely lifted and secured, then remove the rear wheel. Next, use the tool to turn and press the piston back into the caliper housing while simultaneously removing any retaining clips if necessary. Make sure to check the brake fluid reservoir, as the fluid may need to be released to avoid overflow.