How to Deal with Automatic Parking Function Failure?
4 Answers
If the operating lever cannot be fixed, it needs to be replaced or reinstalled. If the gap between the friction plates of the automatic parking system and the brake drum is too large, or there is oil contamination on the friction plates and brake drum, the brake pads and brake discs can be replaced. If the parking brake makes abnormal noises or is aged, lubricating oil should be added or the brake should be replaced.
Having driven for decades, I know how frustrating it is when the auto-hold suddenly fails, but safety always comes first. This malfunction is usually caused by dirty or obstructed sensors—like dust or rainwater buildup on the camera or radar—leading to misjudgment of road conditions. In such cases, I pull over, turn off the engine, let it sit for a few minutes, and then restart the vehicle—just like a hard reboot for a computer. Many modern cars can regain functionality this way. If the issue persists, it might be due to a software bug in the electronic control module or unstable battery voltage. I’d check the dashboard warning lights and refer to the emergency measures in the user manual. As a preventive measure, I regularly clean the sensor area with a soft cloth. If the auto-hold fails, I temporarily rely on the handbrake and head straight to a professional repair shop—never risking it on steep slopes. Aging batteries can also trigger errors, so I test the voltage annually to ensure it’s within the normal range.
I'm quite familiar with automotive electronic systems. The auto-hold function relies on sensors and computer control, so don't panic when it malfunctions. The most common issues are sensor misalignment or moisture intrusion causing false alarms, like system failure after driving through muddy terrain. I'd first check the vehicle settings menu for error codes or whether a software update is needed – sometimes a free upgrade at the dealership solves it. Another angle is mechanical components, such as a stuck brake actuator or loose wiring, which requires disassembly for inspection, but don't tinker blindly to avoid short-circuit risks. I usually keep the front of the car clean to prevent radar blockage. If restarting the vehicle doesn't help, a diagnostic tool is needed to read fault codes before deciding whether to replace components.
When the auto-hold function isn't working properly, start with the basics: restart the vehicle by turning it off and then on again, and check if the dashboard lights are normal. In many cases, it's due to temporary electrical interference or accidental settings changes, such as switching driving modes that might have turned it off. Refer to the user manual for reset steps or look up online tutorials—you might be able to fix it yourself. If that doesn't work, visit a repair shop promptly. They can use professional tools to check for issues with sensors, brakes, or other components. For safety, I always use the handbrake as a temporary substitute, ensuring the car is parked on level ground.
