How to Properly Use Hill Start Assist in a Car?
2 Answers
Correct usage of the hill start assist function in a car is as follows: When parked on a slope with the gear in drive position, release the brake pedal and the HAC will automatically activate. The Hill Start Assist Control (HAC) is a function derived from the ESP system, allowing the vehicle to start on an incline without using the handbrake and preventing rollback. The driver can remove their right foot from the brake pedal while the vehicle maintains braking for several seconds. The car's hill start assist system is typically integrated with the Electronic Stability Program (ESP). If the vehicle's ESP remains enabled, the hill start assist function will also stay activated by default. The ESP can essentially be considered as the on/off switch for the hill start assist feature.
When using the hill start assist in my car, I'll find a safe slope to practice a few times to ensure the system activates: after stopping on an incline and fully depressing the brake pedal, it automatically prevents rollback; then I gently press the accelerator, and the system releases, allowing a smooth start. This feature is particularly useful in mountainous areas or during rainy weather, avoiding the embarrassment of manual transmission rollback. I believe it's important to get familiar with it, especially on steep slopes or when carrying heavy loads, as it enhances driving safety. In daily driving, I also recommend regularly checking the brake system since hill start assist relies on the ABS electronic control unit, requiring it to remain clean and functional. In conclusion, as a car owner, developing the habit of waiting for the system to engage before fully releasing the brakes when parked on a slope makes operations more confident and fluid.
