GM Bulletin HVAC system reprogram caused window problem - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

VegasSS · 10-01-2009, 08:40 PM

Probably the wrong place to post this but I am looking for as much exposure as possible and hoping someone from GM might see this and respond with some advice. My dealer has no clue. Also posted under issues and problems thread

Took my car into the dealer today to actually have the truck latch replaced due to intermittent problem of it not popping up when it is released. Dealer said there was a bulletin to replace the trunk catch.

While there they performed the HVAC reprogram. Not sure how the HVAC and window indexing are connected but now my drivers side window indexes down about 2.5-3" instead of just about 1" to clear the weather stripping. It was working fine and indexing 1" prior to this reprogram. Passenger side still only indexes about 1" It goes back up when you shut the door. So it is still working but the HVAC program screwed something up.

Dealer said that they did not do anything to the drivers door or window. They just downloaded the program GM provided. They are going to do some research on the reprogram but for now there is no fix because they don't know what the problem is.

Anyone else have a similar situation?

POWERFREAK · 10-01-2009, 08:49 PM

weird.

you can try resetting the window indexing...there's a page on it in your owners manual...it's easy, worth a shot.

fireresq157 · 10-01-2009, 08:57 PM

Quote:

Originally Posted by POWERFREAK

weird.

you can try resetting the window indexing...there's a page on it in your owners manual...it's easy, worth a shot.

Jferrell88 · 10-01-2009, 08:59 PM

I think the window indexing has to be reset, i had to do this to both my windows when they did the battery recall fix, one was messed up kinda like yours the other was ok but i reset both. i think this might be your issue i'm not for sure , but they should have know this at the dealer if it was the problem indeed

SSOOCH · 10-01-2009, 09:04 PM

Quote:

Originally Posted by VegasSS

Probably the wrong place to post this but I am looking for as much exposure as possible and hoping someone from GM might see this and respond with some advice. My dealer has no clue. Also posted under issues and problems thread

Took my car into the dealer today to actually have the truck latch replaced due to intermittent problem of it not popping up when it is released. Dealer said there was a bulletin to replace the trunk catch.

While there they performed the HVAC reprogram. Not sure how the HVAC and window indexing are connected but now my drivers side window indexes down about 2.5-3" instead of just about 1" to clear the weather stripping. It was working fine and indexing 1" prior to this reprogram. Passenger side still only indexes about 1" It goes back up when you shut the door. So it is still working but the HVAC program screwed something up.

Dealer said that they did not do anything to the drivers door or window. They just downloaded the program GM provided. They are going to do some research on the reprogram but for now there is no fix because they don't know what the problem is.

Anyone else have a similar situation?

Come on, you're lying about all this...GM got it right with this one!!! Everybody's saying it.

v6sonoma · 10-01-2009, 11:29 PM

Put the windows all the way down then up that should reset them.

Andro · 10-01-2009, 11:33 PM

Yup! Like everyone else said try and reset the window indexing feature and see what happens hopefully that will fix the problem. Keep us updated

VegasSS · 10-01-2009, 11:50 PM

Already tried resetting the windows per the manual long before I posted here. Amy other ideas?

joerod97 · 10-01-2009, 11:52 PM

new car??

PQ · 10-02-2009, 12:16 AM

Interesting, my windows started out indexing about 3/4 of an inch when I first got my car. I never really paid much attention to it but one day I noticed they were going down twice as far. I just figured it adjusted for whatever reason. I unplugged my battery over night to try to reset the commputer before Scott called to tell me to try a fuse pull, that started a movement lol, and when I rebooked the battery and reset the indexing I went back to original. Where it's been ever since. Roll each window down all the way keeping the switch pushed down for ten seconds after it hits bottom, and them do the same back up. If it doesn't work then who knows.

VegasSS · 10-02-2009, 08:05 AM

Thanks, I try disconnecting the battery and see if that fixes it.

SaintTimothy · 10-02-2009, 08:19 AM

I apologize in advance for my ignorance - your window indexing moves the windows down 3/4 - 1"?? I have never had window indexing before, so I presumed that it was just a small movement - 1/8" or so - that you wouldn't even notice. And I have never seen mine move. This is supposed to happen every time you open the door?

jrboyd_1980 · 10-02-2009, 08:40 AM

If you disconnect the battery you will need to reset index anyways.

Brokinarrow · 10-02-2009, 10:30 AM

Quote:

Originally Posted by SaintTimothy

I apologize in advance for my ignorance - your window indexing moves the windows down 3/4 - 1"?? I have never had window indexing before, so I presumed that it was just a small movement - 1/8" or so - that you wouldn't even notice. And I have never seen mine move. This is supposed to happen every time you open the door?

It is a noticeable movement, but still a small movement. Just watch your window when you open and close the door, you'll notice it if you look for it.

UCI CamaroFan · 10-02-2009, 10:52 AM

My dealer told me sometimes this happens on the Corvette too. Roll the window all the way down and hold the down button for 3 seconds, and then roll the window back up and hold it up for 3 seconds

it will reprogram the windows program so that it knows where the top and bottom are.

GangGreen · 10-02-2009, 11:29 AM

My A/C was not blowing out of the correct place. it was coming from the defroster, and down below, when it should be flowing from the dash vents. Chevy kept my car over night to fix, cause the re boot was messing the windows up too. I love my Camaro, i hate problems!!!

VegasSS · 10-02-2009, 02:10 PM

Well before I tried disconnecting the battery this morning I thought I would try to reset them one more time.

As soon as I pushed the down button the message appeared on the DIC telling me to hold down the button to reset the window. I didn't get the message at all yesterday while trying to reset them several times and several attempts at resetting them had no effect on the problem.

Now all of a sudden the car thinks that it needs to be reset. I went through the process but held the button in the down and up position for 20-30 seconds in each position just for good measure. Now problem is solved.

Could this just be a new car window issue or is it somehow related to the A/C reprogram. Maybe just a coincidence that it happened after the A/C reprogram.

Fixed for now.

Thanks for all your input and sharing in my frustration.

10-01-2009, 08:40 PM	#1
VegasSS Drives: 2010 Camaro SS IOM/IOM Join Date: Jun 2009 Location: Henderson, NV Posts: 35	GM Bulletin HVAC system reprogram caused window problem Probably the wrong place to post this but I am looking for as much exposure as possible and hoping someone from GM might see this and respond with some advice. My dealer has no clue. Also posted under issues and problems thread Took my car into the dealer today to actually have the truck latch replaced due to intermittent problem of it not popping up when it is released. Dealer said there was a bulletin to replace the trunk catch. While there they performed the HVAC reprogram. Not sure how the HVAC and window indexing are connected but now my drivers side window indexes down about 2.5-3" instead of just about 1" to clear the weather stripping. It was working fine and indexing 1" prior to this reprogram. Passenger side still only indexes about 1" It goes back up when you shut the door. So it is still working but the HVAC program screwed something up. Dealer said that they did not do anything to the drivers door or window. They just downloaded the program GM provided. They are going to do some research on the reprogram but for now there is no fix because they don't know what the problem is. Anyone else have a similar situation?

10-01-2009, 08:49 PM	#2
POWERFREAK I.AM. Drives: 2010 2SS/RS/M6 Join Date: Oct 2008 Location: NY Posts: 2,150	weird. you can try resetting the window indexing...there's a page on it in your owners manual...it's easy, worth a shot. __________________ 2010 R6P-2SS/RS/LS3 - IBM w/ silver rally stripes / UNDER CONSTRUCTION. NY5thgen.com

10-01-2009, 08:59 PM	#4
Jferrell88 Drives: black 2ss/rs Join Date: Oct 2008 Location: Proctorville, OH Posts: 749 View My Garage	I think the window indexing has to be reset, i had to do this to both my windows when they did the battery recall fix, one was messed up kinda like yours the other was ok but i reset both. i think this might be your issue i'm not for sure , but they should have know this at the dealer if it was the problem indeed __________________

10-01-2009, 11:29 PM	#6
v6sonoma Drives: 2010 SS RS Join Date: Jun 2009 Location: Providence, RI Posts: 7,463 View My Garage	Put the windows all the way down then up that should reset them. __________________ Mods: BBK Intake, BBK LT's and High Flow Cats, Corsa Cat-back exhaust, Hurst short throw shifter, SLP skip-shift eliminator. 7/1/09 Placed order for IOM/IO int/ SS/RS 6M 9/26/09 Took delivery!

10-01-2009, 11:33 PM	#7
Andro NOICE!!! ™ Drives: Force Fed 427 Join Date: Jan 2009 Location: GOT BOOST? Posts: 5,224 View My Garage	Yup! Like everyone else said try and reset the window indexing feature and see what happens hopefully that will fix the problem. Keep us updated __________________

10-01-2009, 11:50 PM	#8
VegasSS Drives: 2010 Camaro SS IOM/IOM Join Date: Jun 2009 Location: Henderson, NV Posts: 35	Already tried resetting the windows per the manual long before I posted here. Amy other ideas?

10-01-2009, 11:52 PM	#9
joerod97 Chevy Man Drives: 2010 2ss -black/black Join Date: Apr 2009 Location: Folsom,ca Posts: 434 View My Garage	new car??

10-02-2009, 12:16 AM	#10
PQ Drives a Maro Drives: Hybrid SS Camaro Join Date: Apr 2008 Location: Mobile, AL Posts: 35,545 View My Garage	Interesting, my windows started out indexing about 3/4 of an inch when I first got my car. I never really paid much attention to it but one day I noticed they were going down twice as far. I just figured it adjusted for whatever reason. I unplugged my battery over night to try to reset the commputer before Scott called to tell me to try a fuse pull, that started a movement lol, and when I rebooked the battery and reset the indexing I went back to original. Where it's been ever since. Roll each window down all the way keeping the switch pushed down for ten seconds after it hits bottom, and them do the same back up. If it doesn't work then who knows. __________________ PEDDERS NO BULL/BeckyD@RodgersChevrolet.................................................. .....

10-02-2009, 08:05 AM	#11
VegasSS Drives: 2010 Camaro SS IOM/IOM Join Date: Jun 2009 Location: Henderson, NV Posts: 35	Thanks, I try disconnecting the battery and see if that fixes it.

10-02-2009, 08:19 AM	#12
SaintTimothy Drives: 2010 Camaro Join Date: Dec 2008 Location: Denver Posts: 162 View My Garage	I apologize in advance for my ignorance - your window indexing moves the windows down 3/4 - 1"?? I have never had window indexing before, so I presumed that it was just a small movement - 1/8" or so - that you wouldn't even notice. And I have never seen mine move. This is supposed to happen every time you open the door? __________________ 2LT/RS IBM, White Rally Stripes, Gray Int, M6 Ordered 10/18/08 Delivered - 6/19/09

10-02-2009, 08:40 AM	#13
jrboyd_1980 A ***'s Headache Drives: Everything Join Date: Aug 2009 Location: Texas Posts: 2,188	If you disconnect the battery you will need to reset index anyways.

10-02-2009, 10:52 AM	#15
UCI CamaroFan Zot! Drives: Toyota 4Runner Join Date: Feb 2009 Location: Orange County, California Posts: 1,333	My dealer told me sometimes this happens on the Corvette too. Roll the window all the way down and hold the down button for 3 seconds, and then roll the window back up and hold it up for 3 seconds it will reprogram the windows program so that it knows where the top and bottom are. __________________

10-02-2009, 11:29 AM	#16
GangGreen Drives: Victory Red LT RS Born:3/3/09 Join Date: Sep 2009 Location: VEGA$ BABY Posts: 136	My A/C was not blowing out of the correct place. it was coming from the defroster, and down below, when it should be flowing from the dash vents. Chevy kept my car over night to fix, cause the re boot was messing the windows up too. I love my Camaro, i hate problems!!!

10-02-2009, 02:10 PM	#17
VegasSS Drives: 2010 Camaro SS IOM/IOM Join Date: Jun 2009 Location: Henderson, NV Posts: 35	Well before I tried disconnecting the battery this morning I thought I would try to reset them one more time. As soon as I pushed the down button the message appeared on the DIC telling me to hold down the button to reset the window. I didn't get the message at all yesterday while trying to reset them several times and several attempts at resetting them had no effect on the problem. Now all of a sudden the car thinks that it needs to be reset. I went through the process but held the button in the down and up position for 20-30 seconds in each position just for good measure. Now problem is solved. Could this just be a new car window issue or is it somehow related to the A/C reprogram. Maybe just a coincidence that it happened after the A/C reprogram. Fixed for now. Thanks for all your input and sharing in my frustration.

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