When driving on grades, which braking method should you use to slow gradually?

• A. Engine braking on grades to slow gradually.
• B. Service brakes when more stopping power is needed.
• C. Parking brake should be used on grades.
• D. None.

Answer: (A)

As you descend grades, the best way to slow gradually is to use engine braking. Engine braking uses the engine’s resistance to help slow the vehicle without taxing the wheel brakes, which keeps the service brakes cooler and ready for when you truly need more stopping power. This gives you smoother, more controllable deceleration on long descents. If you still need additional reduction, apply the service brakes in a controlled, steady way rather than relying solely on them. The parking brake isn’t meant for moving or gradual slowing on grades; it’s for securing the vehicle when stopped. So, engine braking on grades to slow gradually is the right approach.