If your vehicle experiences a sudden total hydraulic brake failure while traveling on a roadway, in what correct sequence should you execute the following emergency recovery actions?
- 1Pump the brake pedal rapidly several times to try building up hydraulic pressure.
- 2Shift the transmission into a lower gear to use engine braking to reduce vehicle speed.
- 3Gently apply the parking brake while holding down the release button or lever.
- 4Steer carefully toward the emergency shoulder or an open escape route off the road.
Answer
The proper emergency sequence for handling total brake failure is: 1) Rapidly pump the brake pedal to attempt building pressure, 2) Shift into a lower gear to engage engine braking, 3) Carefully apply the emergency/parking brake while holding the release mechanism, and 4) Direct the vehicle off the roadway to a safe stopping location.
When total brake failure occurs, the driver should first attempt to pump the brake pedal rapidly to restore pressure. If pressure cannot be built up, shifting into a lower gear leverages engine compression to slow the car down. Next, applying the parking brake gradually provides mechanical braking force without causing a rear-wheel lockup. Finally, directing the vehicle onto the shoulder or an emergency area safely brings it to a halt clear of traffic.
Step-by-Step Solution
Key Concept
Total Hydraulic Brake Failure Emergency Protocol