2004 Tahoe/Tahoe Random Chirp Under Dash While Driving

[ScaryDonuts]

Unplug it or remove the fuse that powers that box. If the noise stops that's where the chirp is coming from.

I’ve had it unplugged for a couple of days now and the car still chirps. This is the only aftermarket item on this car so I believe it must be a chirp for something malfunctioning or maybe a ground wire making something mess up.

The chirp definitely happens in relation to me pressing on the brakes sometimes so maybe it’s the brake booster messing up?

Let me know your guys ideas!

 

[ivin74]

I’ve had it unplugged for a couple of days now and the car still chirps. This is the only aftermarket item on this car so I believe it must be a chirp for something malfunctioning or maybe a ground wire making something mess up.https://youtu.be/h5PUhP7p03w?si=LFjFtXPq0jHWkIPH

The chirp definitely happens in relation to me pressing on the brakes sometimes so maybe it’s the brake booster messing up?

Let me know your guys ideas!

Spray wd40 on the brake pedal joints.

Brake pedal squeaking

No difference in the feel, but the brake pedal is squeaking when I step on it. It doesn't make any noise on the release. Seems to be acting up more in the cold weather. Very annoying. Any ideas on how to shut it up?

www.tahoeyukonforum.com

 

[ScaryDonuts]

Spray wd40 on the brake pedal joints.

Brake pedal squeaking

No difference in the feel, but the brake pedal is squeaking when I step on it. It doesn't make any noise on the release. Seems to be acting up more in the cold weather. Very annoying. Any ideas on how to shut it up?

www.tahoeyukonforum.com

A month later and sadly the WD40 did not fix this sound

 

[ScaryDonuts]

A month later and sadly the WD40 did not fix this sound

[Update] I put new front shocks in the Tahoe because they were leaking and in my mind I was hoping this would help fix this chirp issue because maybe there is an alert system that tells you when your shocks are going bad but nope.

I found a forum with multiple people explaining the exact problem my car has maybe this forum will help someone solve this mystery?

Random chirping - Chevrolet Forum - Chevy Enthusiasts Forums

General Tech - Random chirping - I have a 2005 Suburban. I hear a chirping sound (like the alarm chirp) at random times while driving. It it intermittent and random. It sounds like it is coming from in the dash. Sometimes while I turn the car off it chirps slightly 3 times. The last episode was...

chevroletforum.com

I’m just trying to put out as much information I can find on this issue so that it can be resolved for not only just me but the multiple other people that are having this issue. Anything helps!

 

[Big Mama]

I may have missed it but did you remove the trim panels to have a closer look? That sound is definitely electronic. If it was from the brake pedal or shocks it wouldn’t be the same pitch and cadence each time.

The other forum also confirmed that bc that many trucks wouldn’t have the exact same problem.

When I was truck shopping a few dealers tried to charge for an aftermarket tracking/antitheft device. I didn’t see it in person and maybe it was just this dealer but I thought I’d throw it out there

Like Wes I’m leaning toward the brake controller. It’s possible that if it’s aftermarket the installer used a different power source. Again, not likely but possible.

I think what might help is pictures. However you can do it post some of your under dash area. Also please confirm it’s not coming from your dash or door speakers.

 

[S33k3r]

Is it OnStar? My Cadillac plays an OnStar message, very quietly, when I first enter the Cadillac. Your might be alerting to the fact it can't find some connection or some other error. Also, have you had a code reader on it? It is possible something could be malfunctioning without tripping the Check Engine light.

 

[ScaryDonuts]

I may have missed it but did you remove the trim panels to have a closer look? That sound is definitely electronic. If it was from the brake pedal or shocks it wouldn’t be the same pitch and cadence each time.

The other forum also confirmed that bc that many trucks wouldn’t have the exact same problem.

When I was truck shopping a few dealers tried to charge for an aftermarket tracking/antitheft device. I didn’t see it in person and maybe it was just this dealer but I thought I’d throw it out there

Like Wes I’m leaning toward the brake controller. It’s possible that if it’s aftermarket the installer used a different power source. Again, not likely but possible.

I think what might help is pictures. However you can do it post some of your under dash area. Also please confirm it’s not coming from your dash or door speakers.

The sound is definitely not coming from the door speakers. I can’t get an exact location on where the chirp is coming from because it usually comes on when driving.

For the under the dash photos I tried to keep the brake pedal visible as a reference point. Maybe someone can compare there wire setups to mine to see if something extra was added.

 

[ScaryDonuts]

Is it OnStar? My Cadillac plays an OnStar message, very quietly, when I first enter the Cadillac. Your might be alerting to the fact it can't find some connection or some other error. Also, have you had a code reader on it? It is possible something could be malfunctioning without tripping the Check Engine light.

How could I find out if it is OnStar? This could be totally possible. Maybe the onstar antenna is tripping up and making a chirp? The only thing is sometimes it chirps when letting off the brakes, so does onstar have some tracking or monitoring system on something related with the braking system? This could explain why it chirps randomly and sometimes when letting off the brakes.

 

[SilverSport]

I believe our On*Star system is 2G or older...it might be talking but no one is listening...

Good luck with your Tahoe...

Bill

 

[Big Mama]

You can always press the OnStar button to see if someone answers. Since we’re tossing darts and hoping we hit something, you unplugged the brake controller. Can you remove it?

 

[ScaryDonuts]

You can always press the OnStar button to see if someone answers. Since we’re tossing darts and hoping we hit something, you unplugged the brake controller. Can you remove it?

I checked if there was an easy unclip cable running into the back of the brake controller but it seems to be hard wired in, I’ve had the fuse removed so no power is going to the brake controller but the car still chirps.

I’ve clicked the onstar button and it definitely starts to talk about some random stuff, should I double press it to see if I can get someone on the phone?

There is a white dot button next to the onstar button I believe it’s a phone button? I’ve pressed it and it tries to get me to call somebody? What is this button for?

 

[Big Mama]

I think that’s where the phone button used to be. It works via OnStar. Go ahead and get them to come on the line. It doesn’t cost anything.

 

[SilverSport]

good luck getting anyone to answer...

Bill

 

[Big Mama]

Good point I was surprised when I pressed mine a few years ago and they answered. Maybe that’s changed.

 

[mitman64]

2005 Tahoe with similar symptoms; random intermittent “chirp” that sounds like it is coming from behind the center console.
No after market devices installed.
Symptoms occur with or without key in ignition (power on or power off).
It is not mechanical; it’s an electronic “chirp” totally dissimilar to the door chime. In fact, I removed the door chimes completely.
Also, I removed the Xm Radio and the On-Star systems.
I took apart the entire dash in an effort to find anything that could be responsible. In that effort, I found and removed a gps tracking device (likely installed at originating dealership).
I disconnected the seat contols and the seat belt warning detectors.
All of that had no effect on the chirp.

It does seem to correlate to use of the brake, but only sometimes.
The attached pictures are of the brake lever arm. I’m not at all familiar with the assembly I’m looking at. Could it be responsible?

Most recently the chirp happened instantly when I depressed the tow bottom on the steering column arm, but that symptom was NOT repeatable.

Also, battery is new and measures 12.5-14.5vdc when key is off and on

Any troubleshooting advice is appreciated. A solution would be even better.

Thanks

 

[S33k3r]

This may be silly, but disconnect the speakers and radio to see if the chirp goes away. At least it might give you some data points.

 

[mitman64]

Good idea.
I forgot to mention that I tried that, too. Chirp was still present.

I even bought a “bug” detector to try find any strange RF device that may be installed. No signals found.

 

[Doubeleive]

I checked if there was an easy unclip cable running into the back of the brake controller but it seems to be hard wired in, I’ve had the fuse removed so no power is going to the brake controller but the car still chirps.

I’ve clicked the onstar button and it definitely starts to talk about some random stuff, should I double press it to see if I can get someone on the phone?

There is a white dot button next to the onstar button I believe it’s a phone button? I’ve pressed it and it tries to get me to call somebody? What is this button for?

onstar for gmt800 has been offline for many years, that was old 2g, even the newer 3g went offline around 2 years ago, now you must have atleast 4g which started around 2015 and even some of those are offline.
you can press the button all day long and listen to it but you won't get anybody, nobody is home anymore......

 

[S33k3r]

Good idea.
I forgot to mention that I tried that, too. Chirp was still present.

I even bought a “bug” detector to try find any strange RF device that may be installed. No signals found.

Did you remove the OnStar module?

 

[mitman64]

Did you remove the OnStar module?

Yes, the OnStar is completely removed