Few things are more scary than feeling your vehicle suddenly brake on its own. This unexpected behavior can be alarming and potentially dangerous if not addressed promptly. With Des Moines sweltering summers and freezing winters, it’s even more important to keep your brakes in top working order.
Let’s explain some of the likely reasons why your car or truck might be braking on its own and what you can do about it.
Automatic Emergency Braking (AEB)
One of the most common reasons for a car to brake on its own is the Automatic Emergency Braking (AEB) system. AEB is an advanced safety feature that detects potential collisions and activates the brakes to prevent or lessen the impact. This system uses sensors to monitor the road ahead and can brake if it detects a vehicle, pedestrian, or cyclist in its path. While AEB is a valuable safety feature, it can sometimes activate unexpectedly if the sensors misinterpret the situation.
Corroded Brake Rotors
Brake rotors can corrode over time, especially if they are frequently exposed to moisture. When the brake pads press against corroded rotors, it can cause a jerking effect, making it feel like the car is braking on its own. This issue is often due to overheating and rapid cooling of the rotors, which can lead to warping and corrosion.
Worn Brake Pads
Brake pads are designed to wear down over time. If they become too thin, they can cause sudden braking. Additionally, worn brake pads can lead to brake fluid leaks, further compromising the braking system. It’s essential to regularly inspect and replace brake pads to ensure your vehicle’s braking system functions correctly.
Damaged Brake Hoses
Brake hoses carry brake fluid to the brake calipers. If these hoses become damaged or corroded, they can leak brake fluid, resulting in a spongy brake pedal or a pedal that goes to the floor. This can cause the brakes to engage unexpectedly.
Faulty Wheel Bearings
Wheel bearings are crucial for smooth wheel rotation. If they become damaged or worn, they can cause uneven friction, leading to the car pulling to one side when braking. This can give the impression that the car is braking on its own.
Misaligned or Worn Tires
Old or misaligned tires can cause the car to shake when braking, particularly when going downhill. The suspension system works harder to keep the car balanced, which can result in sudden braking sensations.
Antilock Braking Systems (ABS)
ABS uses wheel sensors to prevent the wheels from locking up during braking, helping to avoid skidding. However, if the ABS sensors detect an imminent collision and the driver does not react in time, the system can activate the brakes on its own. This is part of the vehicle’s safety design to prevent accidents.
Top 10 Tips to Prevent Unexpected Braking
To help you avoid the unnerving experience of your car braking on its own, consider these preventive measures:
- Regularly inspect and maintain the AEB system to ensure sensors are functioning correctly.
- Keep brake rotors clean and free from corrosion by having them checked during routine maintenance.
- Replace brake pads as needed to avoid excessive wear and potential brake fluid leaks.
- Inspect brake hoses for signs of damage or corrosion and replace them if necessary.
- Check wheel bearings for wear and replace them to prevent uneven braking.
- Ensure your tires are properly aligned and in good condition to prevent shaking and sudden braking.
- Have your ABS system inspected to ensure it is functioning correctly and not overly sensitive.
- Perform regular brake fluid checks and top up or replace fluid as needed.
- Schedule routine brake system inspections with a professional mechanic.
- Stay informed about your vehicle’s safety features and how they operate.
Mo’s Auto Shop in Des Moines, IA can perform all of these tests for you.
Give us a call today! 515-991-3870
If you notice any unusual braking behavior, it’s crucial to have your vehicle inspected by a professional mechanic as soon as possible. At MosAutoShop.com, we specialize in diagnosing and repairing brake issues to keep you safe on the road.
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For all your automotive needs, call MosAutoShop.com at 515-991-3870. We’re here to help!
Related: AEB vs. ABS: What’s the Difference Between These Two Braking Systems?
