You are driving a heavy vehicle. What should you do if you must exit a highway using an off-ramp that curves downhill?

Slow to a safe speed before you enter a curve. Braking in a curve is dangerous because it is easier to lock the wheels and cause a skid. Slow down as needed. Do not ever exceed the posted speed limit for the curve. Be in a gear that will let you accelerate slightly in the curve. This will help you keep control. [California Commercial Driver Handbook]