Flashing HVAC Lights?
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Joined: Sep 2000
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From: Far NW 'burbs of Chicago
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Flashing HVAC Lights?
A friend with a 2015 (?) C7 is on vacation in Arizona and sent me this email:
"An unusual thing started to happen.
The HVAC lights on the control buttons and the two temperature readouts started to flash on and off intermittently.
Tapping the dash and hitting bumps on the road do not seem to affect the flashing.
Have you heard of this on other C7's?"
I've not heard of this before, does anyone know the cause and cure?
There are several questions I could ask him to clarify the situation, but I'll get the collective wisdom of the Forum together before asking him.
Thanks.
"An unusual thing started to happen.
The HVAC lights on the control buttons and the two temperature readouts started to flash on and off intermittently.
Tapping the dash and hitting bumps on the road do not seem to affect the flashing.
Have you heard of this on other C7's?"
I've not heard of this before, does anyone know the cause and cure?
There are several questions I could ask him to clarify the situation, but I'll get the collective wisdom of the Forum together before asking him.
Thanks.
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Interested in hearing about what you find. 
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Joined: Jul 2021
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From: New Hartford, NY
Interesting, mine (2014 Stingray) flicker on occasion but do not go on and off. Does the fan quit when the lights are off? Everything seems to run fine with mine but the occasional flickering is annoying and distracting. I, too, will be interested in what you find.
Thread Starter
Team Owner
Joined: Sep 2000
Posts: 25,015
Likes: 2,709
From: Far NW 'burbs of Chicago
St. Jude Donor '13
He says that when the HVAC lights flicker off, then he can't change the temperature setting.
I'm guessing a loose connection or failing module.
Your thoughts?
I'm guessing a loose connection or failing module.
Your thoughts?
