What does the 'a' under the parking brake 'p' stand for?

[DeJoy]

The 'a' under the parking brake 'p' stands for the auto-hold system. Introduction to Auto-Hold: Auto-Hold, also known as AUTO-HOLD, refers to an automatic braking function. When activated, such as when stopping at a traffic light, it eliminates the need to pull the handbrake, simplifying operations by avoiding the use of manual or electronic parking brakes. For automatic transmission models, it also reduces the need for frequent shifting between D to N or D to P. Working Principle of Auto-Hold: The AUTO-HOLD function provides precise braking force through a slope sensor controlled by a unit. During startup, the parking control unit calculates information from sensors such as clutch distance, clutch engagement speed, and throttle pedal. When the driving force exceeds the running resistance, the parking brake is automatically released, ensuring a smooth start.

[StCamille]

Sometimes you see a small 'a' button near the gear shift lever in the P position, which usually refers to the car's auto-hold function. I often use this feature in my car, especially when parking on slopes—it's incredibly convenient. After pressing it, the system automatically applies the brakes for you, and the car won't roll backward when you release the brake pedal, eliminating the hassle of constantly pressing the brake or pulling the handbrake. My novice friends find it super helpful when driving my car, especially in stop-and-go traffic. Just remember, the indicator light shows it's active, and don't confuse it with the electronic parking brake, or issues might arise. Using it frequently also saves fuel, as you don’t need to constantly operate traditional components.

[StGarrett]

That 'A' button is generally for the auto-hold function, which veteran drivers find quite practical after years of use. It works in conjunction with the handbrake—simply put, the system detects when the car has stopped and automatically engages the brakes, then releases them with a light press of the accelerator when moving again. Don’t underestimate it; it’s especially effective at preventing rollback on slippery roads or steep slopes. I’ve seen cases where someone accidentally turned it off, causing the car to roll back over half a meter, which was quite dangerous. Just make sure the indicator light stays steady and doesn’t flicker during use. Also, have a mechanic check the wiring during maintenance to prevent minor faults from affecting daily operation.

[DelVictoria]

The 'A' indicator is likely the Auto Hold switch, usually located below the 'P' position in the gear shift area. Once activated, the vehicle can automatically maintain stability, eliminating the need to continuously press the brake at traffic lights on slopes. A green light on the button indicates it's engaged, and the operation is straightforward and easy to learn, making it beginner-friendly. Just remember not to accidentally turn it off.