what does it mean, when you have a noise that kind of sounds like a loud horn when you back up

Asked by Feb 06, 2016 at 09:44 AM about the 2006 Pontiac Grand Prix Base

Question type: Maintenance & Repair

when I back up, I have a loud noise. It
kind of sounds like a loud horn. It's
only for a couple of seconds while I
back up. What could this mean?

6 Answers

113,535

Did you just purchase the car? Someone may have installed a backup alarm that warns you and anyone close when the vehicle is in reverse. HTH

I have had the car for 10 years :-) it just started this about a month or so ago when it got really really cold.

103,535

Sounds are just about impossible to diagnose over the internet. Can you tell where the sound is coming from?

kind of sounds like an owl with laryngitis. I don't know how else to explain the sound it makes when I back up. It only last for a couple minutes while I'm backing up, after I get going and take off it's not something that keeps on making noise.

it must be something coming for my brakes because it only happens when I'm backing up, like out of my garage and I step on the brakes.

103,535

We are posting at the same time. I think you have squeaky brakes.

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