Here are steps for the rear pad change, assuming you have rear disc.
Pad removal procedure
Inspect the fluid level in the brake master cylinder reservoir.
If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
Raise and support the vehicle.
Remove the tire and wheel assembly.
Remove the caliper from the mounting bracket and support the caliper. Notice: Support the brake caliper with heavy mechanic's wire, or equivalent, whenever it is separated from it's mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak. DO NOT disconnect the hydraulic brake flexible hose from the caliper.
Remove the brake pads from the brake caliper bracket.
Remove the brake pad retainers from the brake caliper bracket.
Important: Use denatured alcohol to clean the outside surface of caliper boot before installing new brake pads.
Use a C-clamp in order to compress the piston to the bottom of the caliper bore. Use the old brake pad, a metal plate or a wooden block across the face of the piston in order to protect the piston and the caliper boot. Important: Use a small flat-bladed tool and lift the inner edge caliper boot next to the piston to release any trapped air.
Ensure that the piston boot is below the level of the piston face.
Install the brake pad retainers to the caliper bracket. Important: Ensure that the wear sensor is positioned at the leading edge (upward) of the inner pad during forward wheel rotation.
Install the brake pads over the brake pad retainers and onto the caliper bracket.
Install the tire and wheel assembly.
Lower the vehicle.
With the engine OFF, gradually apply the brake pedal to approximately 2/3 of it's travel distance.
Slowly release the brake pedal.
Wait 15 seconds, then repeat steps 7-8 until a firm pedal is obtained. This will properly seat the brake caliper pistons and brake pads.
Fill the master cylinder reservoir to the proper level with clean brake fluid.
Burnish the pads and the rotors.