Don't wait for your car's brakes to tell you they need attention

Do your holiday travel plans include hitting the roads this season? It's important to check now that your vehicle is ready for the trip.

Angie's List recommends a brake inspection as part of that checkup to ensure safety and reliability.

While modern cars are more reliable than ever, they still need regular maintenance - and brakes are one car repair where you don't want to cut corners.

Angie's List, the nation's leading provider of consumer reviews, spoke to several experienced auto repair specialists about your car's brakes.

Angie's List Tips: signs you need brake repair:

• Squealing: If you notice a high-pitched squealing sound when you apply the brakes, it's a good indicator that your brakes need to be replaced or at the very least inspected. Many vehicle and brake component manufacturers engineer wear indicators into their brakes to produce this sound to notify the driver brake work is needed. Other factors that can produce a high-pitched squealing from the brakes include a build-up of brake dust from the brake pads being worn down, debris or rust on the surface of the rotor or brake pads becoming glazed over from high heat.

• Grinding: If you hear grinding sounds when you apply pressure to your brake pedal, it means the pads weren't replaced in time or something is rubbing against the brake rotors the wrong way. The brake pads may be beyond their wear limit, they may be coming into rough, uneven contact with the rotors, or it can be something more sinister like brake calipers or pistons grinding against the rotor.

• Vibrations or pulsations when brake pedal is applied: Feeling pulsations or vibrations when you apply the brake pedal typically indicates the brake rotor is significantly worn or warped. Effective braking power relies on the brake pads and brake rotor coming into contact cleanly, that is the entire surface brake pad contacting the brake rotor simultaneously. A rotor that is warped by friction or heat, or worn beyond acceptable limits, can create vibrations or pulsations.

• Loss of pressure on the brake pedal: When your foot presses on the brake pedal, you should feel a firm response that becomes increasingly firm as you press down harder. If you own a late-model vehicle (and not a classic or vintage vehicle without modern braking technology), a brake pedal that feels mushy or can be pressed all the way down to the floor can indicate several things. It could be a relatively minor problem such as a leak or gap in the brake lines allowing air to enter and diminish braking power or the brake pedal may need to be adjusted, or it may be something much more serious, such as a failing brake system.

• Dashboard warning lights: Modern vehicles with on-board vehicle diagnostic systems may display warnings on the instrument cluster to indicate issues with the braking system. If an "ABS" or "brakes" warning light appears on the instrument cluster and doesn't go away, or flashes, check your owner's manual for details. Be sure to inform your auto service technician about the warning lights when making a service appointment.

A brake inspection should be part of your vehicle's ongoing regular maintenance to ensure safety and reliability.

It's a good idea to have your brakes inspected at least every six months for signs of wear or degradation, or whenever you experience grinding, vibrations or shaking when you brake.

Regardless of the vehicle, brakes generally need to be replaced every 20,000-30,000 miles.

Don't wait until noises develop or become significantly louder to address brake system maintenance.

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