What Causes Severe Jerking When Braking to a Stop?

[OEzra]

Severe jerking when braking to a stop is mainly caused by excessively worn brake pads that need replacement. Here are methods to determine when to replace brake pads: 1. Judging by the wear condition of the brake pads: A new brake pad typically has a thickness of about 1.5cm, which gradually thins with continuous friction during use. When visual inspection shows the brake pad thickness has reduced to approximately 1/3 of its original thickness (about 0.5cm), the owner should increase self-inspection frequency and prepare for replacement. 2. Judging by sound: When the wear indicators on both sides of the brake pad are directly rubbing against the brake disc, it indicates the brake pads have exceeded their wear limit. If a hissing sound accompanies light braking, this means the brake pads must be replaced immediately.

[EloiseDella]

I've been driving for several years, and the sudden jerking and lurching when slowly coming to a stop at low speeds is really annoying. Usually, the problem lies with the brake discs—after long-term use, they can warp or wear unevenly, leading to an uneven surface and inconsistent braking force. The brake pads might also age and thin out, causing instability upon contact. The ABS (anti-lock braking system) can also create this sensation when it engages at low speeds, but that's a safety mechanism. I make it a habit to regularly inspect the braking components, such as having a mechanic check the disc thickness and flatness every six months, and promptly replace or resurface them if issues are found. Driving habits are also crucial—avoiding sudden braking can reduce thermal shock deformation of the discs. Safety comes first; don’t overlook these small details, or it could lead to serious trouble in an emergency.

[OmarAnn]

In my experience dealing with similar issues, the jerking sensation when braking to a complete stop often stems from several mechanical problems. For instance, brake discs may warp after overheating and cooling, or have surface scratches and accumulated deposits; uneven wear of brake pads or oil contamination can affect friction; the ABS system may cause pulsating stops when activated on slippery surfaces; air in the hydraulic system or dirty brake fluid can also lead to unstable response. It's advisable to first inspect with professional tools rather than toughing it out. During routine maintenance, focus on cleaning brake components, replacing fluids, or adjusting clearances to alleviate the issue. Drivers should avoid riding the brakes, aim for gentle and gradual stops, and maintain proper system lubrication.

[Francisco]

I also encountered this issue when driving my first car, experiencing a strong jerking sensation during slow braking. The main reasons could be uneven contact surfaces due to dust or rust accumulation on the brake discs, or worn-out edges on the brake pads. If the ABS is functioning properly, it will intervene to prevent wheel lock-up, causing brief jerks. It's best to perform regular maintenance, such as cleaning off dirt or replacing worn components. After simple treatments, the braking becomes much smoother.

[OBlakely]

I deeply understand when driving an old car, the jerky sensation during low-speed braking is most commonly caused by aging, warped, or rust-deposited brake discs. Hydraulic instability may result from potential oil line leaks, and differences in ABS calibration can also be contributing factors. Weekly tire pressure checks ensure uniformity to avoid uneven wear affecting braking, while quarterly minor maintenance can prevent major repairs.

[McKaden]

As someone who frequently drives kids to and from school, sudden jerking in the car can be quite alarming. The key issue is insufficient maintenance of the braking system, such as uneven wear of discs and pads, grease contamination, or ABS activation. It's important to visit a professional shop promptly for diagnosis and replacement of parts, while also developing the habit of gently applying the brakes to prevent overheating and deformation. ABS tends to be more active in humid weather, but keeping the brakes clean can improve stability.