Interior Dimming Issue 04 Burb

[TylerHagerdorn]

I couldn't find a thread on this exact problem, or a solution. My 04 Suburban seems to have an issue with the cluster and the rearview mirror screens being dim when it's sunny out.

At night it's just fine. Cluster is new, and the company tested it multiple times and sent me photos of the DIC screen being bright. And I've had three of these trucks before, all of the previous ones had bright screens and rearview mirrors.

I have absolutely no idea what it could be. Radio and climate are bright as can be. Wiring has been gone through basically front to back in the truck. And I can't find any issues. The headlight switch is original, the dimmer dial does dim and brighten like it should...but could that be the issue? Could there be an issue with that dial not getting proper contact from being 19 years old? I'm used to feeling the dial click into place when it's at full brightness...mine doesn't do that. It barely clicks when you move it all the way up to turn the interior lights on.

I don't know what else it could be. If it is the headlight switch, that would be fantastic.

 

[TylerHagerdorn]

Anyone? Nobody has any insight on what to check?

 

[Hoesgottaeat2]

My wife has an '09 Pontiac G6 that has similar symptoms. It's not high up on the list of things to do right now but this is what I suspect it is with her car at this point.
Not sure if this helps, but maybe will help eliminate one more potential cause or get you pointed in the right direction...

Does your truck always think it's night time? How...

Hi everyone, As some of you know, I've been infuriated about how my truck always thinks it's night time. It would turn on the lights and dim the dash unless the sun was shining directly on the sensor. It could be broad daylight, not a cloud in the sky, so bright I'm wearing sunglasses...but if...

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