Final answer:
When the brake pedal goes to the floor in a vehicle with hydraulic brakes, pumping the brake pedal may bring the pressure up so you can stop the vehicle. Downshifting can also help slow down the vehicle and provide additional stopping power. The parking brake will not work in this situation.
Step-by-step explanation:
When you press the brake pedal in a vehicle with hydraulic brakes and it goes to the floor, it typically indicates a loss of hydraulic pressure in the braking system. In this situation, pumping the brake pedal may bring the pressure up so you can stop the vehicle. Additionally, the parking brake will not work either because it is part of the same hydraulic system.
Regarding the statement about not downshifting with an automatic transmission, it is important to note that downshifting can help slow down the vehicle and provide additional stopping power. However, it should be done carefully while maintaining control of the vehicle.
Therefore, the correct statement is: Pumping the brake pedal may bring the pressure up so you can stop the vehicle. SEO Keywords: hydraulic brakes, brake pedal, hydraulic pressure, pumping the brake pedal, downshifting, automatic transmission, parking brake.