Verification of Brake Concern

Determine if the problem is from the rear brakes by making a light stop from approximately 80 to 56 km/h (50 to 35 mph) using the parking brake. You must hold the release button in while pulling the parking brake handle. If the shudder or vibration is present. The problem is in the rear brakes. If the shudder or vibration is not present, the problem is in the front brakes.