What to Do When There's a Clicking Sound While Pressing the Brake in P Gear?

[AaronAnn]

If there's a clicking sound when pressing the brake in P gear, the transmission fluid should be changed. Below is some information about pressing the brake in P gear: 1. Transmission Fluid: Transmission fluid is generally replaced every 4 years or 60,000 kilometers. There are two methods for replacement: gravity drain and using a transmission flush machine. The former uses about half the amount of fluid compared to the latter. If the vehicle frequently drives on highways, the replacement interval can be extended by an additional 20,000-30,000 kilometers. Brands such as ZF, Bosch, ELF, Total, and Perede are highly recommended. 2. Function: Over time, transmission fluid viscosity becomes thinner, leading to decreased lubrication performance, reduced sealing capability, increased resistance, and accelerated wear. This results in unstable pressure and affects the working precision of the hydraulic system. Consequently, transmission control precision declines, and shift accuracy is reduced.

[LilaMarie]

A clicking sound when pressing the brake in P gear is quite common, and I've encountered this situation. Most of the time, this is a normal mechanical sound because pressing the brake triggers the linkage action between the brake light switch and the P gear locking mechanism. The click is the signal of the internal pin moving. As long as there are no other issues when driving, such as smooth gear shifting and normal brake light operation, there's no need to worry. However, if the sound becomes particularly loud or is accompanied by shaking or difficulty in shifting gears, there might be a problem with the transmission or brake system. It's recommended to first check around the brake pedal for any sticking. If manually lubricating doesn't solve the problem, seek a professional repair shop for diagnosis as soon as possible. Develop a habit of firmly pressing the brake before shifting to P gear when parking to reduce unnecessary wear.

[StGrace]

I've experienced the 'click' sound when stepping on the brake while in P mode several times, which feels like a signature of driving an automatic transmission car. At first, I was nervous too, thinking the transmission was broken. Later I learned it's just the brake system releasing the P mode lock - a perfectly normal mechanical response. If it only happens occasionally without other symptoms, it can be safely ignored. But if the clicking becomes frequent or sounds harsh, you should be cautious. My suggestion is to do a quick self-check: start the car, press the brake pedal several times while listening for sound changes, and observe if the brake lights function normally. If everything seems normal, it's likely nothing serious. If anything seems off, promptly check the transmission fluid level or brake switch. Remember not to delay inspection too long to prevent minor issues from becoming major failures.

[McDaniela]

A clicking sound when stepping on the brake in P gear is usually harmless, but be alert to abnormal situations. The noise may originate from the linkage between the brake and transmission. If it's excessively sharp or accompanied by shaking, it may indicate potential issues such as transmission lock wear. Recommended immediate actions: Check if the brake lights are on to confirm the switch status, and observe whether gear shifting is smooth. If there's no improvement, seek professional inspection. Safety is the primary principle of driving, and ignoring unusual noises may lead to significant trouble.