Driver Information Center (DIC) language keeps changing

Tiny
ERERERT
  • MEMBER
  • 2004 CHEVROLET TAHOE
  • 5.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 136,000 MILES
Language in Information Center keeps changing on it's own; will not stay set, cannot understand Chinese.
Friday, July 31st, 2020 AT 4:58 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Hi,

Take a look at this procedure and let me know if this is what you are doing. If it is, chances are the information center has failed.

DISPLAY LANGUAGE
Continue with the following steps in order to program the language displayed:
1. The DIC displays DISPLAY LANGUAGE: ENGLISH, FRENCH, or SPANISH.
2. Press the select button in order to scroll through the above choices.
3. Press the personalization button in order to select the displayed choice and to advance to the next option.
4. If the vehicle does not have the personalization button, use the trip stem to toggle to the season odometer display and then press and hold the trip stem to cycle through the languages and release it when the language of choice is displayed.

To end the procedure, turn the key off.

Let me know.
Joe
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Friday, July 31st, 2020 AT 10:09 PM
Tiny
ERERERT
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Thanks for your reply. Have stem control only and went through the proper procedure; I guess information center has shorted out when headlights filled with water. Any recommendations on repairing? Or do I need to replace the ECM? Again thanks.
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Saturday, August 1st, 2020 AT 6:43 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Hi,

That's a tough call. I would think the headlamps shorting would have taken out a fuse and not the ECM. Did this just happen since the headlamp issue?

Joe
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Saturday, August 1st, 2020 AT 10:27 PM
Tiny
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A while back had trouble with bad gaskets on headlights and filling with water, had an alignment done at AAA and they mentioned this may cause electrical issues, since then had A/C blend door problems, A/C shutdown, radio problems, dash lights coming on when parked, and of course information panel going crazy.
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Sunday, August 2nd, 2020 AT 9:01 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Honestly, I don't see how that would cause all of these problems. As far as the water, yes it could cause a short and pop a fuse, but for it to damage the ECM like that doesn't make sense to me, simply because that is why there are fuses in place. Anything is possible, but this seems unlikely.

What I would suggest is this. Since the vehicle has several different modules, you should try to scan the CAN bus system. CAN stands for can bus system. If you scan the entire system, an issue like this should show up.

Here is a video that shows how it's done:

https://youtu.be/InIlnsjOVFA

If there is a failure with the ECM, it should show up.

Let me know.

Joe
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Sunday, August 2nd, 2020 AT 8:44 PM
Tiny
ERERERT
  • MEMBER
  • 11 POSTS
Thanks Joe, I guess I have to invest in a new scanner. Purchased an AUTO X-RAY a while back but it's out-dated already, $600.00 down the drain. Will let you know what turns up, Thanks again, Les
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Monday, August 3rd, 2020 AT 5:43 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
You are very welcome. Let me know what you find.

Take care,
Joe
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Monday, August 3rd, 2020 AT 10:24 PM

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