LEAF Certification Practice Test

Which feature of the 2022 Nissan LEAF allows drivers to control the vehicle's speed without using the brake pedal?

1. Automatic speed sensor

2. Adaptive cruise control

3. One-pedal driving

4. Emergency braking system

The correct answer is: One-pedal driving

The feature that allows drivers to control the vehicle's speed without using the brake pedal is one-pedal driving. This innovative capability in the 2022 Nissan LEAF enables the driver to accelerate and decelerate using only the accelerator pedal. When the driver lifts their foot off the accelerator, the vehicle engages regenerative braking, which slows the car down while simultaneously converting some of that energy back into stored power for the battery. One-pedal driving provides a more intuitive driving experience, especially in stop-and-go traffic. It reduces the need for frequent brake usage, enhancing driver comfort and optimizing energy efficiency by recuperating kinetic energy. This feature is particularly useful in electric vehicles like the LEAF, as it aligns with their design philosophy of maximizing efficiency and driving range. The other options, while related to vehicle control in some manner, do not specifically facilitate the same level of speed control through a single pedal. For example, adaptive cruise control maintains a set speed while adjusting for other vehicles, but it requires the driver to engage and disengage the system actively.