Is it okay to pull the handbrake in D gear?
2 Answers
It is not okay to pull the handbrake in D gear. D gear is the forward driving gear and is not intended for cutting off power, so you should not engage the handbrake while in D gear. The electronic handbrake is a technology that uses electronic control to achieve parking braking, and its working principle is the same as that of a mechanical handbrake. Principle of the electronic handbrake: The electronic handbrake achieves parking braking through electronic regulation. Its working principle is similar to that of a mechanical handbrake, except that the traditional mechanical handbrake lever is replaced by an electronic button. Function of the electronic handbrake: The electronic handbrake, also known as the electronic parking brake system, combines the temporary braking needed during driving with the long-term braking required after parking, achieving parking braking through electronic control. Additionally, it extends to the auto-hold function, allowing the driver to avoid prolonged braking when the vehicle is parked, effectively preventing the vehicle from rolling.
As an experienced auto mechanic with years of practice, I'm telling you that applying the handbrake while in D gear on an automatic transmission is absolutely a bad idea. When the engine is in D gear, it constantly wants to move forward, but you're forcibly holding it back with the resistance of the brakes. This will wear out transmission components and may lead to transmission overheating or even damage the torque converter inside. I once had a customer who did exactly this, resulting in severe vehicle shaking and repair costs running into thousands. The correct procedure is to first bring the vehicle to a complete stop, then shift to P gear before applying the handbrake. Regular checks of transmission fluid and brake systems are also crucial because if the handbrake itself becomes loose, the vehicle might roll when parked on slopes. Developing good habits is essential - don't cut corners for convenience. Remember, vehicles are designed to primarily use P gear to lock the gears. Avoid prolonged use of D gear with brakes applied, as this only accelerates wear and tear.
