The rear bumper assembly of your Toyota Corolla is made of polyurethane. While this material is lighter than sheet metal, it is also more prone to unsightly cracking and chipping. If you must remove your rear bumper because something hit it, or if you just need to refinish the paint on the bumper, expect to spend about 15 to 20 minutes changing out the bumper from the Corolla.
Lift the rear of the Corolla using a floor jack. Jack up on the rear jack point behind the boot, and place a jack stand under each of the rear pinch welds. Then lower the vehicle onto the jack stands.
Pry the plastic rivets off the inner wheel liner with a flathead screwdriver.
Remove the bolts that hold the bumper to the bumper bracket and support.
Pull the bumper off the bumper support.
Mount the new bumper. Align the mounting holes on the back of the bumper's mounting bracket with the bumper support, and thread and tighten the bumper. Replace the plastic rivets that hold the wheel liner to the rear bumper.
Remove the jack stands, and lower the car.