Will an Automatic Transmission Vehicle Roll Back Without Hill Start Assist?

[LeLucy]

An automatic transmission vehicle will not roll back without hill start assist. As long as the slope is not too steep and the driver is proficient in operation—quickly pressing the accelerator pedal after releasing the brake pedal—the vehicle will not roll backward. The function and usage of the hill start assist system are as follows: Function of Hill Start Assist System: Hill Start Assist, also known as Hill-start Assist Control, temporarily applies braking force to all four wheels (for up to approximately 2 seconds) to prevent the vehicle from rolling backward when starting on an uphill slope. How to Use the Automatic Transmission Hill Start Assist System: When the vehicle's gear is not in P (it can be in any other gear), firmly press the brake pedal until you hear a "beep" sound. At this point, the hill start assist system activates (operating for two seconds), and the brake lights will illuminate to automatically generate braking force.