GMC Terrain, Equinox, and SRX Forum banner
1 - 20 of 25 Posts

·
Registered
Joined
·
9 Posts
Discussion Starter · #1 ·
I just took delivery of my 2011 Equinox and there is a constant hissing/static from the front speakers. It's like listening to an amplified high noise floor. It persists whether the vehicle is on or off, key is in or out, doors opened or closed. It appears to be ever present. The only time it is not noticeable is while driving. I find it extremely bothersome and cannot bear to sit in the vehicle for more than a few seconds while parked.

Do others' vehicles do this?
 

·
Registered
Joined
·
10,530 Posts
Nope - no one here has complained of that. Could be one of the "features" that they added to the 2011 models. LOL
 

·
Registered
Joined
·
441 Posts
they hiss with the vehicle off?!?!?

you either have a short, or bad ears, cause with the vehicle off, and the radio not having power, there should be zero signal/voltage going to the speakers.....

take it to the dealer....should be easy to track if it does it with the power off.....
 

·
Registered
Joined
·
332 Posts
I've never heard any hissing sound from our Nox. It's dead silent inside the vehicle when it's shut off.

When it's very quiet inside our garage, I do hear the occasional very high frequency whine coming from somewhere on the vehicle when you are outside the vehicle. It occurs for a few seconds when the vehicle is shut off or if you open the doors and then close them. It's some electronic device doing something. I joke with my wife about it and say that "big brother is watching" and it's sending out signals to see where we are. ;)
 

·
Registered
Joined
·
830 Posts
OnStar is functionnal even when car turned off. So yes its possible he ears something if its a bad amp or speaker.

gar187er said:
they hiss with the vehicle off?!?!?

you either have a short, or bad ears, cause with the vehicle off, and the radio not having power, there should be zero signal/voltage going to the speakers.....

take it to the dealer....should be easy to track if it does it with the power off.....
 

·
Registered
Joined
·
9 Posts
Discussion Starter · #6 ·
I decided to be more patient and waited to see if it would go away while the vehicle is at rest. I timed it and it turned off with an audible cut off noise at 2:05 after closing the door. It returned again with any action which caused the console and DIC to light up (key in, opening door, etc). I will be taking it back to the dealer Monday.

It is unfortunate that this vehicle is already leaving bad taste in my mouth. In addition to the above problem, it arrived from the factory with a 2" gouge in the door jam paint, scratches all over the inside driver's door panel, and the power controls (both key fob and console) don't work for the front passenger side door. One day of ownership and the dealer already has a myriad of problems to address.
 

·
Registered
Joined
·
635 Posts
Could it be a faulty fuel pump? They can make that sound.
 

·
Registered
Joined
·
10,530 Posts
Roesterman said:
Could it be a faulty fuel pump? They can make that sound.
A fuel pump should not be running after the car is turned off - unless the relay is stuck. hen it would be running 24*7. I would say unlikely.
 

·
Registered
Joined
·
468 Posts
James1234 said:
I decided to be more patient and waited to see if it would go away while the vehicle is at rest. I timed it and it turned off with an audible cut off noise at 2:05 after closing the door. It returned again with any action which caused the console and DIC to light up (key in, opening door, etc). I will be taking it back to the dealer Monday.

It is unfortunate that this vehicle is already leaving bad taste in my mouth. In addition to the above problem, it arrived from the factory with a 2" gouge in the door jam paint, scratches all over the inside driver's door panel, and the power controls (both key fob and console) don't work for the front passenger side door. One day of ownership and the dealer already has a myriad of problems to address.
James sorry you ran into so many problems so early on. Once everything gets squared away youll love the Terrain.
 

·
Registered
Joined
·
2,772 Posts
James1234 said:
I decided to be more patient and waited to see if it would go away while the vehicle is at rest. I timed it and it turned off with an audible cut off noise at 2:05 after closing the door. It returned again with any action which caused the console and DIC to light up (key in, opening door, etc). I will be taking it back to the dealer Monday.

It is unfortunate that this vehicle is already leaving bad taste in my mouth. In addition to the above problem, it arrived from the factory with a 2" gouge in the door jam paint, scratches all over the inside driver's door panel, and the power controls (both key fob and console) don't work for the front passenger side door. One day of ownership and the dealer already has a myriad of problems to address.
James1234,
Please keep me updated with your progress at the dealer. Thank you!
Christina
Chevrolet Customer Service
 

·
Registered
Joined
·
9 Posts
Discussion Starter · #11 ·
Chevrolet Customer Svc said:
James1234,
Please keep me updated with your progress at the dealer. Thank you!
Christina
Chevrolet Customer Service
After initially denying that there was any noise at all, the dealer is now telling me it's normal and all their Equinox's do it. Looks like this is going to turn into a long, drawn out affair between me, the dealership, and possibly Chevrolet. I would estimate the hiss at about 30-35 dB, which is neither normal nor acceptable for any piece of audio equipment on the planet. I guess the next step is for me to get a meter and measure it. Unfortunately a meter which can measure that low will cost at least a few hundred dollars.
 

·
Registered
Joined
·
441 Posts
James1234 said:
After initially denying that there was any noise at all, the dealer is now telling me it's normal and all their Equinox's do it. Looks like this is going to turn into a long, drawn out affair between me, the dealership, and possibly Chevrolet. I would estimate the hiss at about 30-35 dB, which is neither normal nor acceptable for any piece of audio equipment on the planet. I guess the next step is for me to get a meter and measure it. Unfortunately a meter which can measure that low will cost at least a few hundred dollars.
next step would be to get in another equinox at the dealer, park it right next to yours and test the new one....
 

·
Registered
Joined
·
2,772 Posts
James1234,
I would like to assist you in getting this situation resolved for you. I will be sending you a direct messaged to get more information.
Christina
Chevrolet Customer Service
 

·
Registered
Joined
·
9 Posts
Discussion Starter · #14 ·
Chevrolet Customer Svc said:
James1234,
I would like to assist you in getting this situation resolved for you. I will be sending you a direct messaged to get more information.
Christina
Chevrolet Customer Service
I have already opened a case with Chevrolet customer service.
 

·
Registered
Joined
·
9 Posts
Discussion Starter · #15 ·
I was able to check additional vehicles. The problem was not evident on a base model (no Pioneer, no navigation). The noise was clearly audible on another vehicle with a similar configuration to mine (Pioneer and navigation). I was not able to check a vehicle with Pioneer audio and no navigation.
 

·
Registered
Joined
·
10,530 Posts
James1234 said:
I was not able to check a vehicle with Pioneer audio and no navigation.
I'll save you some trouble - I have Pioneer audio with no nav, and also NO hissing.

Anyone else care to report in...
 

·
Registered
Joined
·
332 Posts
2010Nox said:
I've never heard any hissing sound from our Nox.
Like I said, No hissing whatsoever. Pioneer system without nav.
 

·
Registered
Joined
·
1,085 Posts
Which engine do you have, James1234?
May be the ANC (Auto Noise Cancellation) or whatever it is they use the subwoofer for on the 4-cylinders isn't grounded properly or something?
At any rate, should be an easy fix.
35dB is a high ambient noise and would get on my nerves too!
Please keep us posted, first time this issue has been posted that I remember.
 

·
Registered
Joined
·
9 Posts
Discussion Starter · #20 ·
gearhead said:
Which engine do you have, James1234?
May be the ANC (Auto Noise Cancellation) or whatever it is they use the subwoofer for on the 4-cylinders isn't grounded properly or something?
At any rate, should be an easy fix.
35dB is a high ambient noise and would get on my nerves too!
Please keep us posted, first time this issue has been posted that I remember.
4 cylinder. It is not the ANC. ANC is only from the sub and would only be active while the car is running.

What I'm hearing is the noise floor of some audio component which was either poorly designed or built from very poor components. You would hear the same thing if you were to crank the volume way up on any stereo with no input signal. You'll hear a static like hissing which is the electronic noise of the device's innards. The problem here is that the noise is independent of radio controlled volume and persists even when all user controllable vehicle features are turned off.

30-35dB is not a scientific measurement. Just my estimation that it is about the same level as a soft whisper. I found what looks to be a half way decent meter for about $120, so maybe I'll buy it next month if Chevrolet has made no progress on the issue by then.
 
1 - 20 of 25 Posts
Top