Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

flashing AC button light

Thread Tools
 
Search this Thread
 
Old Jan 3, 2008 | 09:14 PM
  #1  
Rkreigh's Avatar
Rkreigh
Thread Starter
Race Director
25 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Dec 1999
Posts: 10,230
Likes: 885
From: Alexandria, Virginia, USA VA
Default flashing AC button light

when very cold (around 30 or less), and I hit the AC button, it flashes and goes out.

after the car warmed up, and I restarted it after running around, it came on and stayed on as normal. I think this means the AC needs a recharge and it's a bit low. new to the c5.

any advice??
Reply
Old Jan 3, 2008 | 09:18 PM
  #2  
Y2Kvert4me's Avatar
Y2Kvert4me
Race Director
 
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Default

To protect itself from damage, the a/c compressor will not run at temps below 35f.

That is what the blinking light means.


Reply
Old Jan 3, 2008 | 09:31 PM
  #3  
Oldvetter's Avatar
Oldvetter
Le Mans Master
15 Year Member
 
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
Default

From the Owner's Manual:

The light comes on when the air conditioner compressor is on. The compressor will not run with outside temperatures of below approximately 35 F to 40 F.
Reply
Old Jan 4, 2008 | 05:54 PM
  #4  
Rkreigh's Avatar
Rkreigh
Thread Starter
Race Director
25 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Dec 1999
Posts: 10,230
Likes: 885
From: Alexandria, Virginia, USA VA
Default

wow thanks! I need to read up as the ac and heater controls are way different from my c4
Reply
Old Jan 4, 2008 | 06:12 PM
  #5  
JPM@AutoBuffs's Avatar
0JPM@AutoBuffs
Former Vendor
 
Joined: Dec 2006
Posts: 11,573
Likes: 0
From: The AutoBuffs Army is unmatched in the Custom world! www.autobuffs.net
S. Jersey Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '08-'09-'10
Cruise-In IX Veteran
Default

Originally Posted by Y2Kvert4me
To protect itself from damage, the a/c compressor will not run at temps below 35f.

That is what the blinking light means.


Reply
Old Jan 4, 2008 | 06:15 PM
  #6  
C5R USA's Avatar
C5R USA
Race Director
Supporting Lifetime Gold
15 Year Member
Veteran: Army
St. Jude 10 Year Donor
Top Answer: 5
 
Joined: Apr 2007
Posts: 19,696
Likes: 523
From: Ideals are peaceful...History is violent...St.Charles, MO.
2020 Corvette of the Year Finalist (appearance mods)
C5 of Year Winner (appearance mods) 2019
St. Jude Donor '08-'09-'12 thru'22
Default

Originally Posted by Y2Kvert4me
To protect itself from damage, the a/c compressor will not run at temps below 35f.

That is what the blinking light means.




Quite right!!!
Reply
Old Jan 4, 2008 | 09:24 PM
  #7  
RonJ's Avatar
RonJ
Burning Brakes
15 Year Member
 
Joined: Oct 2003
Posts: 1,106
Likes: 1
From: Foresters Falls(near Ottawa) Ont
Default

Does the AC not come in in the cold weather when you ask for defrost? I thought it came on in most cars to lubricate the compressor in the winter and to remove moisture in the defrosting air.

My baby is stored inside for the winter and not used, so I don't have any "winter experience" with my C5, but that's what happens in my other GM products.

RonJ ...
Reply
Old Jan 4, 2008 | 11:12 PM
  #8  
99mallett's Avatar
99mallett
Le Mans Master
Supporting Lifetime Gold
15 Year Member
St. Jude 10 Year Donor
 
Joined: Feb 2003
Posts: 6,369
Likes: 73
From: The line waiting to see Santa Claus stretched all the way back to Terre Haute, and I was at the end, Indiana
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18
Default

I thought it meant...
air's on...air's off...air's on...air's off...air's on...air's off
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jan 2, 2010 | 07:30 PM
  #9  
Sputnik1961's Avatar
Sputnik1961
4th Gear
 
Joined: Sep 2008
Posts: 4
Likes: 0
Default

I thought the same thing as RonJ. I thought AC was supposed to kick on when defrosting.

I had this light flash for the first time today. the OAT was about 32 or so, so the cold weather answer makes sense.

I also thought about adding freon but do not want to overcharge the system.

I called the dealer and asked them if it was normal in cold weather for that to happen and they said no ... the exact reason I stopped going to the dealer within a month of buying my vette. This is their car and they have no idea how to work on it or what is even wrong sometimes.

My question is I guess it the cold weather the reason that my ac will not come on?
Reply
Old Jan 2, 2010 | 07:41 PM
  #10  
Len90Vette's Avatar
Len90Vette
Pro
 
Joined: Jun 2004
Posts: 534
Likes: 0
From: Duncan South Carolina
St. Jude Donor '10
Default

Originally Posted by 99mallett
I thought it meant...
air's on...air's off...air's on...air's off...air's on...air's off
Reply
Old Jan 2, 2010 | 08:01 PM
  #11  
atmsrus1's Avatar
atmsrus1
Drifting
10 Year Member
 
Joined: Sep 2008
Posts: 1,260
Likes: 1
From: Pearl Mississippi
Default

Originally Posted by RonJ
Does the AC not come in in the cold weather when you ask for defrost? I thought it came on in most cars to lubricate the compressor in the winter and to remove moisture in the defrosting air.

My baby is stored inside for the winter and not used, so I don't have any "winter experience" with my C5, but that's what happens in my other GM products.

RonJ ...
I was wondering why the a/c light came on when I turned on the defrost, I keep trying to turn it off.......................
Reply
Old Jan 4, 2010 | 06:54 AM
  #12  
raymond86's Avatar
raymond86
Instructor
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Aug 2004
Posts: 164
Likes: 2
From: Donauwoerth
Default

Mine is doing the same, and indeed, it says so in the manual. HOWEVER, I think it's a stupid design!!! Like you guys said, the A/C is used in summer to get the heat out, but in winter time it's a great asset to get your windows defrosted when it's cold and humid. I have not driven a single car (including a C4) that had this restriction except for the C5.....

Greetz,
Raymond
Reply
Old Jan 4, 2010 | 08:48 AM
  #13  
DBRASUE's Avatar
DBRASUE
Drifting
15 Year Member
 
Joined: Jul 2003
Posts: 1,647
Likes: 2
From: Peoples Republik of Kalifornia Ka
Default

It could also mean that the sensor is bad. Mine did the same thing during the summer. I fixed the problem by replacing it. Yeah I know the op said around 30 degrees or less.
Reply
Old Jan 8, 2010 | 03:21 AM
  #14  
Mitchell SWZ06's Avatar
Mitchell SWZ06
Racer
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Mar 2008
Posts: 264
Likes: 0
From: Dallas Ft Worth Texas
Default

wow i love this forum, i have owned my c5Z for 2 years now and recently this is the coldest weather i have ever driven it in (was low 20s here today) and noticed the blinking ac light and it freaked me out, after only 2 mins of searching i found this thread and got my answer!
Reply

Get notified of new replies

To flashing AC button light





All times are GMT -4. The time now is 10:15 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE