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Discussion Starter · #1 ·
I'm getting a tire system fault after 20 or so miles. It started after the car had major stereo upgrade. They had the battery unhooked for days so I just figured the sensors just needed to be re-learned. I re-learned them by e owners manual and still keep getting it. I'm going to go get the sensors re-learned with progammer tomorrow and see if that changes anything. I have 2 amps on back wall of rear seat and signal processor under back deck lid. Could any of those be causing this?
 

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How bout powering down those amps and processor, an go for a drive long enough to verify if the problem continues or is eliminated. Especially if the problem continues after you complete that *programmer learn procedure*, you talked about.
 

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II'm going to go get the sensors re-learned with progammer tomorrow and see if that changes anything.

Don't waste your time. If your going through the learn mode & getting the 2 horn chirps after the left rear wheel at the end of the process, then the learn is success & nothing else is, or will be, different when using the special tool.

You didn't say what kind of fault message you are getting...?

Also, the most likely cause of your problem is electrical interference or a faulty sensor. If you look at all of your pressure readings when the problem is happening, which one is dropping out?
 

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Discussion Starter · #4 ·
Tire system fault is the fault. All tires drop off. My ctsv did the same thing but soon as I had them re-programmed with computer never had any issues again.
 

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So your saying you don't really have a problem. As soon as the dealer does the computer reprogram method, that annoying problem will disappear. Whereas, when you use the method described in the owners manual, it will-not correct the problem. So be it.
 

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I'm getting a tire system fault after 20 or so miles. It started after the car had major stereo upgrade. They had the battery unhooked for days so I just figured the sensors just needed to be re-learned. I re-learned them by e owners manual and still keep getting it. I'm going to go get the sensors re-learned with progammer tomorrow and see if that changes anything. I have 2 amps on back wall of rear seat and signal processor under back deck lid. Could any of those be causing this?
Tire system fault is the fault. All tires drop off. My ctsv did the same thing but soon as I had them re-programmed with computer never had any issues again.

So you asked us for our opinion because....?
 

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Discussion Starter · #8 ·
So you asked us for our opinion because....?
G8 isn't a CTSV didn't know if anyone else has similar thing happen before I go waste the time to get them reprogrammed with computer.
 

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The TPMS sensors communicate with the car via the RCDLR module. The module is under the package shelf on the driver's side. Its antenna runs around one of the 8" subs. You're likely getting interference from the new equipment. Mine will fault every so often on long, > 2 hours, trips and then come back a minute or two later. I haven't taken my package shelf apart since I did the install but plan to re-route the antenna when I do.
 

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Discussion Starter · #10 ·
Update

Ending up being a bad tire sensor, it finally flagged one sensor. Had it replaced and problem went away.
 

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Update

Ending up being a bad tire sensor, it finally flagged one sensor. Had it replaced and problem went away.
minytrker,

Appreciate your update. I'm glad that the sensor was replaced and everything is fine for you now. Feel free to contact us if any further concerns arise.

Kind regards,

William R.
GM Customer Care
 

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Discussion Starter · #12 ·
minytrker,

Appreciate your update. I'm glad that the sensor was replaced and everything is fine for you now. Feel free to contact us if any further concerns arise.

Kind regards,

William R.
GM Customer Care
GM didnt do anything for me, I fixed it out of my pocket.

Maybe you can look into my tail lights breaking on the inside (no damage on outside). I had passenger side break at 36,200 miles (dealer hour away) by the time I got it in. They didnt cover it. Now a year later my driver side done the same thing.
 

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GM didnt do anything for me, I fixed it out of my pocket.

Maybe you can look into my tail lights breaking on the inside (no damage on outside). I had passenger side break at 36,200 miles (dealer hour away) by the time I got it in. They didnt cover it. Now a year later my driver side done the same thing.
Oh no!

I'm very sorry to hear about that. Feel free to private message your contact and vehicle information so I can review whether there's possibly anything we can do to assist you in these circumstances. I am unable to guarantee any particular outcome though I'll see what can be done.

Kindly,

William R.
GM Customer Care
 
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