What are the reasons for the failure of the automatic parking function?

[MacColeman]

The reasons for the failure of the automatic parking function: The parking brake lever cannot be fixed; the parking brake fails; the parking brake makes abnormal noises or is aging; the gap between the friction plate of the automatic parking system and the brake drum is too large, the friction plate and the brake drum are contaminated with oil or severely worn, the rivets are exposed, and the surface is hardened, causing slippage and failure; the parking brake shaft is severely worn, the gap is too large, and the parking brake lever is adjusted too long. Additional information: 1. Automatic parking function: The automatic parking function is a feature that allows the driver to avoid unnecessary vehicle sliding without the need for prolonged braking or activating the electronic parking brake. 2. Principle: The automatic parking function provides precise parking force through a slope sensor controlled by the controller. When starting the vehicle, the parking control unit calculates information provided by the clutch distance sensor, clutch engagement speed sensor, and throttle pedal sensor. When the driving force exceeds the running resistance, the parking brake is automatically released, enabling the car to start smoothly.

[VonClaire]

Having run an auto repair shop for years, I've encountered numerous cases of automatic parking system failures. The most common causes include sensor issues, such as dirty or faulty wheel speed or tilt sensors, which lead to inaccurate parking status detection by the system. Control module or ECU malfunctions are also frequent occurrences, possibly due to software bugs or circuit problems requiring updates or repairs. Additionally, brake system components like insufficient brake fluid or worn discs/pads can affect parking brake performance. Vehicles with aging batteries often experience voltage instability, triggering faults. I recommend owners first consult the manual for basic troubleshooting, such as system reboots or checking warning lights, but if issues persist, promptly visit a professional shop for diagnostic tool checks and firmware updates. Regularly cleaning chassis sensor dust during routine maintenance can prevent minor issues from escalating. Safety first—never overlook these seemingly small problems.

[BraxtonAnn]

The auto-hold function in my car has failed a couple of times recently, which gave me quite a scare. Based on my driving experience, it's mostly due to insufficient battery power or sensors being blocked by rain and mud. During my last maintenance visit, the mechanic mentioned that a loose control unit connector could also cause malfunctions. I tried restarting the car, and it worked fine afterward. Be extra careful when parking on slopes—if the system isn't functioning, immediately use the handbrake to control the risk. For safety, don't force the car to drive if there's a malfunction; just take it to a repair shop for a check. Maintenance is simple: remember to clean the sensors every quarter to save both money and hassle. Battery life also affects it, so replace it promptly when it's worn out. In short, check it yourself first, then seek help from a professional mechanic.

[DelEmilio]

Automatic parking failures often stem from electronic system glitches. Issues with sensors like wheel speed or angle detection can cause inaccurate data leading to failure. Software errors are common in smart vehicles, and firmware updates often resolve them. OBD diagnostic tools can scan for trouble codes to help quickly locate problems. Keep related hardware clean to prevent interference.