While driving down a moderate grade on a two-lane rural road, your brake pedal suddenly sinks completely to the floor without slowing the vehicle. In what correct order should you execute the following emergency actions to safely stop your vehicle?
- 1Pump the brake pedal rapidly several times.
- 2Downshift the transmission into a lower gear.
- 3Gently apply the parking (emergency) brake.
- 4Steer safely toward the shoulder, an uphill grade, or an open escape area.
Answer
The correct sequence of actions for handling brake failure is: 1) Pump the brake pedal rapidly several times, 2) Downshift the transmission into a lower gear, 3) Gently apply the parking brake, and 4) Steer safely toward the shoulder, an uphill grade, or an open escape area.
The standard DMV emergency protocol for brake failure requires attempting to build hydraulic pressure first by pumping the brake pedal rapidly. If that does not work, downshifting uses engine drag to slow the vehicle down safely. Next, applying the parking brake slowly provides mechanical stopping force without locking the wheels. Finally, steering toward a safe shoulder or escape path allows the car to come to a complete stop off the roadway.
Step-by-Step Solution
Key Concept
Sequential Emergency Response to Hydraulic Brake Failure