A driver encounters complete hydraulic service brake loss on a level highway. Arrange the standard emergency procedures in the correct sequential order from first to last.
- 1Downshift the transmission into a lower gear to utilize engine braking.
- 2Pump the brake pedal rapidly to attempt rebuilding hydraulic pressure.
- 3Apply the parking brake gradually while modulating pressure to prevent wheel lockup.
- 4Steer into an open shoulder or safe escape path to bring the vehicle to a complete halt.
Answer
The correct sequence begins with downshifting into a lower gear, followed by rapidly pumping the brake pedal, then gently applying the parking brake, and finally steering into an open shoulder or escape path.
When hydraulic brakes fail on a level highway, the driver must first downshift to let engine compression slow the vehicle, rapidly pump the brake pedal to attempt generating hydraulic pressure, carefully apply the parking brake without locking wheels, and finally guide the vehicle into an escape route or shoulder to stop safely.
Step-by-Step Solution
Key Concept
Standard Emergency Sequence for Hydraulic Brake Failure
Estimated Time:45s