Last post on Sep 24, 2012 at 10:58 AM
You are in the Hyundai Sonata
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Hyundai Sonata, Brakes, Sedan
#7 of 311 Sonata 07 brake problem
Nov 03, 2006 (12:36 am)
I bought this Sonata 2 weeks ago and it has 1100 miles on it. Lately I am hearing the rear brake squealing when applying the brake while backing the vehicle. When I put it back in Drive (tap the brake) it doesn't have that sound anymore. It only happens after the vehicle has been parked for 4 hours or more.
I've brought it to a Hyundai dealership and they replaced the rear brake pads, but the squealing noise still there.
Anyone experiencing this problem? Some people told me that is normal to have the brake squealing after the vehicle has been parked for a while and it will go away after a short drive. That's seems odd to me though. Thanks for all your input.
#8 of 311 Re: Sonata 07 brake problem [txn428]
Nov 03, 2006 (7:43 am)
That is true about a little noise after a car has been parked awhile, especially in cool, humid weather when moisture may collect on the brake discs. I am hearing a little brake squeal lately on my Elantra, which goes away after driving awhile. The temps here have dropped to teens to low 20s overnight lately.
#9 of 311 Re: Sonata 07 brake problem [backy]
Nov 03, 2006 (1:31 pm)
It doesn't happen when I purchased the car which is about 2 weeks ago. The temperature is cold (50's at night) but not too low around my area (California). I've just brought it to the dealership again today and they told if I wanted them examine the squealing noise, I will need to leave it overnight so that they could do the inspection in the next morning. I'll try to do that next week and see what happen. Does anybody else experiencing the same problem as mine on the Sonata?
#10 of 311 brake problem backy 9
Nov 03, 2006 (2:16 pm)
i have the same problem when my car sits for a while when I back up and is fine the rest of the time please tell me how you made out at the dealer before I go there thanks
#11 of 311 Re: brake problem backy 9 [franmart]
Nov 04, 2006 (7:29 am)
I live in PA and I have experienced this with every car I have ever owned. Especially after letting it sit over night or on a day where humidity is high or it's raining.
The rotors will begin to develop a film of rust and after hitting the brakes a few times, the rust layer is removed and the squealing noise disappears.
May not be the same issue but the only other thing it could be is pads and the only way to resolve it correctly is to resurface the rotors as well if you are replacing pads for that reason.
#12 of 311 Sonata ABS sound
Feb 01, 2007 (10:49 pm)
My 2006 Sonata ABS makes a grinding sound like it is grinding corn, or dragging something on the ground when the ABS is engaged(sliding on ice for example). The brake system makes no noise under normal non ABS use, and works fine, good stopping power, the best brakes I have ever had!
From the reading I have been doing on this subject I understand that this sound is normal.
My question for operators who own other brands of autos is, does your other cars makes this same type of noise? And, if anyone knows, what is it in the Sonata system that makes this type of sound?
#13 of 311 Re: Sonata ABS sound [eagle2a]
Feb 02, 2007 (4:45 am)
I own something other than a Hyundai and yes, I hear the same sort of sound when the ABS engages.
#14 of 311 Re: Sonata ABS sound [eagle2a]
Feb 02, 2007 (6:55 am)
Every car that I have owned with ABS has had the same noise when activated. Here in the NY area , when we have "winter" the ABS comes into play. Perfectly NORMAL!
#15 of 311 Re: Sonata ABS sound [drdonrs]
Feb 02, 2007 (1:28 pm)
Thank you for your response, Pat and Dr Don.
One reason I ask is that while this is the first car that I have owned with ABS, years ago I drove a auto with asn old ABS system and the only indication I would have of ABS engaging was a pulsing feeling on the brake peddle. No sound at all.
The sound from the Sonata is so pronounced and such an odd sound(you believe something is dragging the ground) that Hyundai surely had a reason for making this sound so noticeable.
Just curious. And I was wondering if some of our posters who are much more knowledgeable than I could tell us how the noise is generated?
#16 of 311 Re: Sonata ABS sound [eagle2a]
Feb 02, 2007 (1:37 pm)
Brake calipers/pads hitting the brake discs on 4 wheels several times per second. Can make quite a racket!