Free independent reference. Original examples, not official exam questions or a practical driving assessment. Follow current provincial rules and vehicle instructions.
Emergency driving and collisions →A low pedal does not always mean no braking
SGI explains that vehicles have a two-circuit hydraulic system and that complete failure is rare. If one circuit fails, the warning light will usually appear during braking and substantially more pedal force may be needed. Do not abandon the brake merely because the pedal has travelled farther.
The explicit instruction for this modern-system failure is not to pump. Do not transfer an instruction for a different vehicle system or a different emergency into this question.
Source: SGI — Emergency driving: brake failure ↗Treat the parking brake as a controlled input
The handbook describes the parking brake as another way to help slow the vehicle. Rear-wheel locking can make the car spin, so pressure must be controlled rather than applied as a sudden, indiscriminate action.
Parking-brake designs differ. This reference does not invent a button-hold sequence for every electronic system; learn the manufacturer’s instructions for the vehicle you drive. Once the vehicle is stopped after a failure, arrange help rather than continuing the trip.
Source: SGI — Emergency driving: brake failure ↗Apply the rule in original cases
Original learning cases
The brake warning appears and the pedal needs more pressure. Do not assume that repeated pumping is SGI’s prescribed response to modern hydraulic failure.
A driver proposes yanking the parking brake fully without regard to wheel lock. That ignores the handbook’s warning about rear-wheel locking and a possible spin.
The engine stalls and steering becomes heavy. This example concerns loss of power assistance, which must be distinguished from the hydraulic-circuit failure described above.
Separate assistance loss from hydraulic failure
When an engine stalls, power steering or brake assistance may be lost. SGI says considerably more force is then required at the wheel or pedal to maintain control; it discusses selecting neutral and restarting the engine. Losing assistance does not mean the controls simply cease to exist.
Read the owner’s manual and practise normal control use with a qualified instructor. This written comparison is for identifying the event in a knowledge question, not demonstrating that you can manage an emergency on the road.
Source: SGI — Emergency driving: brake failure ↗