Temperature display flashing ?
Thread Starter
Instructor
Joined: Apr 2008
Posts: 171
Likes: 1
From: WESTMINSTER CA
Temperature display flashing ?
Driving my car ('08) home today my A/C temp. display started flashing. Has this happened to anyone ? Anyone know what it might be?
Thanks in advance for the help.
Thanks in advance for the help.
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
Sorry, I don't think I've ever seen that problem mentioned in any threads here. You might check the C6 FAQ sticky, but I doubt if it's in there either. I did look in the 08 owner's manual in the section where the climate controls are mentioned, but didn't see it.
Thread Starter
Instructor
Joined: Apr 2008
Posts: 171
Likes: 1
From: WESTMINSTER CA
Just put the car in the garage and the flashing has stopped. Just a gremlin I guess.:o
Advanced
Joined: Oct 2008
Posts: 82
Likes: 0
From: Kentucky
I have this on my 2005 coupe. I asked the same question and was told that the A/C control unit was about to die by one of the members here. Mine is very intermittent. If you discover the problem could you PM me?
Racer
Joined: Apr 2008
Posts: 394
Likes: 0
From: Reading PA
mine just did it today on a 2008 coupe. I restarted it (held the button for 10 seconds) a few times to try and make it go back to normal, and it didn't, so I drove it to the dealer.... and what do you know - when the dealer went to start it to diagnose the problem, it went away!
I've made a few trips today with a shutdown in between, and now it's normal. Hmm...
They are going to call the GM tech line on Monday and let me know if they hear anything. In the meantime, are there any TSBs for this that I can reference?
Thanks!
I've made a few trips today with a shutdown in between, and now it's normal. Hmm...
They are going to call the GM tech line on Monday and let me know if they hear anything. In the meantime, are there any TSBs for this that I can reference?
Thanks!
Racer
Joined: Apr 2008
Posts: 394
Likes: 0
From: Reading PA
Hmm - still no luck. It's almost as if the car is trying to tell you it's hot outside, as it only does it when it's 90+ degree weather. It did it again today, but then went away after letting the car sit for an hour or two.
Maybe it's just saying that it might not be able to cool efficiently at that temp?
Maybe it's just saying that it might not be able to cool efficiently at that temp?
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Racer
Joined: Apr 2008
Posts: 394
Likes: 0
From: Reading PA
has anyone resolved this problem? my dealer won't replace the display unless it is actually doing it at the moment I have it there. This is proving to be harder than it sounds, as it is very intermittent.
Pro
Joined: Apr 2009
Posts: 690
Likes: 2
From: Gilbert AZ
Hmm - still no luck. It's almost as if the car is trying to tell you it's hot outside, as it only does it when it's 90+ degree weather. It did it again today, but then went away after letting the car sit for an hour or two.
Maybe it's just saying that it might not be able to cool efficiently at that temp?
Maybe it's just saying that it might not be able to cool efficiently at that temp?
Plus my car thinks it is hotter outside than it really is because it sits in the parking lot outside the office all day. Mine is an 09 btw.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
There's a reset for the hvac but I'm not clear on how its done. Something about pushing and holding both the defrost and fan up buttons at the same time or something like that. Do a quick search and see if you can find it.
Instructor
Joined: Mar 2007
Posts: 147
Likes: 0
From: Phoenix Arizona
My 2008 did the same thing intermittently.
After several weeks of this, I took it to the dealer, they replaced the head unit no questions asked.
I took mine to Van Chevrolet in North Scottsdale. Az.
Good luck.
After several weeks of this, I took it to the dealer, they replaced the head unit no questions asked.
I took mine to Van Chevrolet in North Scottsdale. Az.
Good luck.
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
No, that sounds like the process to get the outside temperature sensor to update immediately. You press the 3 right-most A/C buttons at the same time, whatever they are. This is not in the manual.
Pro
Joined: Mar 2008
Posts: 564
Likes: 0
From: Tri-Cities Washington
Sure would seem like a dealer would know if the system runs a self-test.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Cool, I'll try that and see if it works, then will remember it for future reference here. Thanks
