Q: Brakes make a swoosh sound

asked by on

I am thinking about buying a Prius and I test drove one at the dealership. I noticed that whenever I pressed the brakes, I heard swoosh sound. Almost as if air was being released. Does that seem normal to you? Right now I have a 2007 Prius and it does not make that sound. The dealership say it is a normal thing for hybrids.

Things change as technology advances. Most hybrids have a regenerative braking system to charge up the hybrid battery. If Toyota has changed the design of the regenerative braking system since the year of Prius that you own, it is very possible that the noise you hear could be a normal part of its operation. I would recommend test driving one or two more newer Prius’ and see if they make the same noises. If they do, the sound must be normal. If not, you were lied to by the spokesperson at the dealership.

If and when you do decide on a new car, consider having a mobile mechanic come out to the location of the vehicle to perform a thorough pre-purchase inspection.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Brakes make a swoosh sound

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Is this the brakes? Is it the caliber? What is it?

When you press the brake pedal, brake fluid is pushed out to each wheel to apply the brakes. In the case of a disc brake caliper, the piston applies pressure to squeeze the brake pads against the brake disc. If...

Q: Advice on deciding to buy a car, among BMW, Mazda, Toyota and Toyota hybrid

I'm not a hybrid fan, because they are so complex, and when they break, many cost a fortune to fix. That is the only car Toyota makes that I advise people not to buy. I wouldn't go for it unless...

Q: How to disable a rear view camera in Toyota Corolla ?

The rearview camera can be enabled or disabled using the touch screen display. Perform the following steps: Turn on the touch screen display Touch the “Main Menu” button Touch the option “System Setup” Touch the option “Camera Setup” Touch...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.