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Pontiac G6 Hardtop Convertible

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Comments

  • streuangelstreuangel Member Posts: 1
    Had a new stereo and Din kit installed: now I get "Check Cargo Top" on the driver info when I try to drop the top. Anyone have any idea what's causing this?
  • redbulredbul Member Posts: 14
    It certainly enhances the driving experience to get rid of the rattle. As mentioned in a posting above, I have seemed to have substantially got rid of the rattle after applying a product I got at Lordco. It is called kleen.flo Honey Goo Rubber Care (Stock No. 809.) It seems Lordco had it in on a trial basis as I don't see it there now. I have half a spray can left....and I ain't sharin'.

    The worst rattle was one that sounded like ball bearings rolling around in the roof. The dealer fixed the latches once and it seemed to work. It came back and I could get rid of it by lowering the passenger window a bit. It stopped sometime after I put the Rubber Care product on.

    About the time I had a dead spot at top dead centre of the steering fixed. It could be that the wobble in the steering was causing a unnoticed vibration that caused the rattle?

    It could be that after 80,000 kl the car just settles in and the rattles get less; or maybe the car is just happy now that I own it rather than the leasing company.

    Vroom vroom........vrooooooooooommm....mmm.....mmm
  • g6htcgxpg6htcgxp Member Posts: 2
    I'm a car dealer and have sold several G6s and all my costumers love it. Great style and easy and cheap maintenance.
    Having owned several convertibles I had settled with a Pt Cruiser GT Turbo convertible for being affordable and easy to maintain.
    After so much complaining about how ugly the car is, although I like the style, I decided it was time to move on and look for a new convertible and as a requirement it needed to have seats for 4, possibly a hard top.
    After considering the options, besides a bmw or a sebring, there isn't much choice for a real 4 seater.
    Sebring is crap, bmw too expensive, so I decided to go for the G6.
    After several months looking for one that would catch my eye, I finally found a 09 diamond white with low miles.
    I don't get all the haters on this thread, this car is great, handles awsome, very little shake and lots of room inside.
    Pontiac did a great job on this car for the price, and maintenance is a breeze.
    I made some changes to it, put on a front bumper from a GXP and the rocker moldings, even though they are not made for a convertible, and the car now looks awsome.
    It put a smile in my face everytime I see it or drive it.

    Being a car dealer, I know life will not be perfect, exaust issues or rattles on the top will eventually happen, but if a car makes you happy, those issues will never be a problem.

    Looking foward to the summer with the new ride......
  • g6guyg6guy Member Posts: 10
    its very nice to finally see someone rnjoy there car without comments and negative comments no car is perfect and no car ever will be the main thing is u like what u have and enjoy it ..one question was it hard getting the gxp front added to ur car i have a gtp htc and always wanted to change the front to gxp but didint know if it was possible..thanks an good luck
  • g6htcgxpg6htcgxp Member Posts: 2
    It's no problem, fits right in. Only issue is if you buy the whole bumper assembly like me, there are 2 air ducts close to the fog lights and it might rub the condenser.
    So make sure to grind them down at least 1/4 inch before installing it.
    I'm not sure if you need the bumper absorber, so I would recomend finding one with all the parts included, if you have to order all grilles and inserts it would get very expensive.
    Now the side rocker moldings are a pain, they don't make them for the convertible, so I bought the ones for the coupe and found a way to adapt them.
    Not perfect since the mounting tags don't match and sheet metal is completely different, so I'm not sure if I would recomend.
    I hope you are enjoying yours as much as I am.
    thanks.
  • ownerof4chevysownerof4chevys Member Posts: 35
    Hello,
    I've posted several times before, and my main objective has always been to DISCUSS issues about G6's. Of course no car is perfect, and the G6 HTC is a complex piece of engineering that is more prone to issues.
    My G6 has lived up to my expectations and I love it. Maybe I'm a bit luckier than some owners, because I've never had major problems. My G6 is a fully loaded 2007 with less than 16,000 miles.
    I would have expected slightly better gas mileage, but I guess that 20 MPG isn't that bad (3.9 engine). I've used spray lubricant on most accessible roof parts and I have no rattles at all. I built my own windscreen and it definitely helps prevent drafts on cooler days. The only handling problem I've found is that the car wants to follow any grooves in the road and it takes a certain amount of excess steering force to pull out of the groove. In all honesty, I wish the air conditioner didn't come on every time I start the car (automatic climate control). I have two Malibu Maxx's and the A/C system is wired differently.
    To anyone wanting to "dress up" the front end of the G6, you may want to consider purchasing the factory chrome lower grilles. I bought mine two years ago on Ebay when they were cheap and plentiful....no so anymore.
    Happy motoring.
  • g6guyg6guy Member Posts: 10
    i do enjoy my car very much so far iam at the 51,000 mark on my gtp htc.. i have the same issue it tends to follow the grooves in the road..iam gonna have my car checked out my only issue i have noticed is a clunking noice when turning ther wheel in the parking lot only not while driving and turning i have heard of lubrication issues i will have checked out just ot make sure..but all and all i love my car.. i have tired a few lubricants but so many seem to either dry out or just turn white and idea of a good lubricant to use on my top to keep the rattles i tend ot hear at times?
  • ownerof4chevysownerof4chevys Member Posts: 35
    I'm sure General Motors has a specific lubricant, but I just used a spray silicone lubricant. Make sure that the door pins are lubricated as well. Those pins can cause quite a rattle. I used Lubriplate on them, and that worked out fine. I live in New Jersey and don't really use the car all winter long. When I do take it out, just to exercise it every week or two, it rattles for the first mile and then stops abruptly. I believe it's just the plastic parts behind the rear seats.
  • ownerof4chevysownerof4chevys Member Posts: 35
    Hello Everyone,

    This is an update to my own posting regarding touching up the outer edge piping of the light taupe leather seats. The perfect color match attained by HomeDepot in a sample bottle (under $3) and applied with a small brush to the worn out area worked out perfectly. I also sealed the paint with an aerosol can of clear. It looks great and hasn't worn off at all.
  • g6guyg6guy Member Posts: 10
    thanks for the post jersey guy here as well..and also love my car,..iam looking for a good lubricant for the hinges and gears of my htc currently looking at some auto part stores and ideas?.....i do have rattles when going on very horrible pavement..........
  • pattononlinepattononline Member Posts: 9
    edited July 2011
    My g6 nyc is a 07 with the 3.9 and we just love it. It has now graduated to being our toy and only gets driven about 500 miles a month. The one thing I was always upset about was the fuel mirage it would get about 20 on average. I changed to a k&m air filter and put a resister that wired into the map sensor it was about $100 total for both and we now average o er 24 and have gotten up to 29 on the interstate.
  • 6gs6gs Member Posts: 1
    g6 HTC problem windows roll down top and front will unlatch trunk will unlatch and start up about an inch and all process stop the pump continues to run for the cycle but the top will not go any further push the button all day long or until temp shuts it down but still will not open will close and lock down tight just replace with new hydro pump and motor with same results like the main 2 hydro cyclinders for the top lift are bypassing enternaly or could the pump control module be bad.
  • kevgretkevgret Member Posts: 37
    edited April 2012
    Good Afternoon:

    I am posting this due to my frustration with GM and the dealer I have been working with for 6 years now.

    I have a 2007 G6 convertible and from DAY ONE my car has been plagued with numerous issues. I have had to leave my car for weeks at a time to get everything worked out. I have had numerous issues with the top, I had a complete exhaust system re-installed, I had an air bag sensor replaced on my passenger side… the list goes on and on..

    I am currently having one issue that no one will help me with.. not even GM customer service or the dealer. My cruise control only works when it wants to. I have had the car at the dealer about 4 separate times to have this fixed but each time I am told there is nothing wrong with the car. The service tech has told me offline he does believe me but he needs to register a code on the computer or he can’t do anything.

    The problem is my extended warranty expires in August and I know this issue will continue and not be fixed. I called GM directly and I was told I should drive the car immediately to the dealer when the issue arrives again. Not the most practical thing in the world to do.. especially when the cruise fails on the weekend 200 miles away from the dealer.

    Can any of the GM mods help me out? I have a case number from GM (71-1055079779). I also had the dealer make a complete copy of my service history, which is quite large.

    You can also search for my posts in these forums which detail my issues as well.

    Please help me... I am at my wits end with these issues.

    EDIT: Just to put this into some type of perspective I have summarized all of my car issues below. you will see that I have major issues with my car.

    Car Left Car Picked up Issue with Car
    12/27/2007 1/4/2008 Roof Rattles
    2/1/2008 2/1/2008 Roof Rattles
    5/22/2008 5/22/200 Air Bag Sensor Comes on NO WORK PERFORMED
    6/4/2008 6/19/2008 Roof Snaped while closing
    9/13/2008 9/16/2008 Roof Not Operating Correctly, Exhaust system makes LOUD WHISTLE when driving COMPLETE exhaust system installed
    10/6/2008 10/6/2008 Air Bag Sensor Comes on NO WORK PERFORMED
    10/24/2008 10/24/2008 Brakes making LOUD noise. Work performed
    7/6/2011 7/6/2011 Air Bag Sensor Comes on DEALER FINALLY FIXES PROBLEM
    7/6/2011 7/8/2011 Cruise Control Works when it wants to. NO WORK PERFORMED
    8/22/2011 8/24/2011 Car FAILED inspection due to ELECTRICAL issues.
    8/22/2011 8/24/2011 Cruise Control Works when it wants to. NO WORK PERFORMED
    4/4/2012 4/4/2012 Cruise Control Works when it wants to. NO WORK PERFORMED
    4/4/2012 4/4/2012 Drivers seat adjustable switch stops working NO WORK PERFORMED
  • rjentrjent Member Posts: 19
    Mine does the same thing and has for about a year. I get it to work by when it stops, close the top until the DIC tells you that the top move complete, then put it down again, mine works again when I do that. I was thinking that I was low of oil, but my dealer says no. It seems to be worse when cold.

    Try that and let us know if it lets you put it down or not.
  • nowaczyknowaczyk Member Posts: 5
    Dear Frustrated: I know your pain, my wife's G-6 is a rattle trap. It has been worked on by Pontiac and Cadillac dealers. 2 months ago I took the car to the Cadillac dealer, since they also sell a convertibe. I gave them permission to fix the rattle once and for all. They adjusted the roof, replaced rubber bushing, even aligned the passenger's door, (with a hammer) to get it adjusted. When complete we took it on their Hummer test track. It was a miracle no rattles. Then the temperature changed, and now back to a rattle trap. I give up.
  • gmcustsvcsarahgmcustsvcsarah Member Posts: 1,964
    nowaczyk,

    I'm sorry to hear that the most recent fix didn't stick! If you were interested in having us look into this further, please send an email to socialmedia@gm.com (include your name/Edmunds username, phone and address, the last 8 of your VIN and current mileage, and the name of your preferred dealership).

    Best regards,
    Sarah
    GM Customer Service
  • bardkbardk Member Posts: 2
    Hi everyone, my first posting here. I'm a visiting professor from Norway going back to my home country in the end of June and I have to sell our two cars. I have listed both cars on autotrader.com, craigslist and cars.com and have gotten several e-mails and phones asking for our Honda Pilot, but none on the Pontiac. I realize that is a special car, any tips on how I can target the type of people of who like such cars?
  • kevgretkevgret Member Posts: 37
    Sarah:

    Don't you have anything you can do for me? It's nice to help other people but I think I need some help too.

    Kevin
  • Kirstie_HKirstie_H Administrator Posts: 11,148
    bardk,
    It's hard to target a market for a specific vehicle like the one you own. If you live near a Carmax, you can take it there - they purchase used vehicles, usually at decent prices.

    MODERATOR /ADMINISTRATOR
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  • Kirstie_HKirstie_H Administrator Posts: 11,148
    You haven't posted in this discussion in the past two years - it's not possible for the representatives to know whether you are still here, still have the car, or are still having issues. You should probably post a new message describing your issues, and the year of your vehicle.

    MODERATOR /ADMINISTRATOR
    Need help navigating? kirstie_h@edmunds.com - or send a private message by clicking on my name.
    Share your vehicle reviews

  • bardkbardk Member Posts: 2
    Thanks kirstie h, I'll try Carmax.
  • gmcustsvcsarahgmcustsvcsarah Member Posts: 1,964
    Good morning Kevin,

    We'd be happy to assist. Could I get a better understanding of where you're at? Are you having any current concerns with your vehicle? Have you been working with your dealership towards resolving it/them?

    Looking forward to hearing more,
    Sarah
    GM Customer Service
  • kevgretkevgret Member Posts: 37
    Here is exactly where I am at:

    I have a cruise control problem that still exists today. As my last post outlined, I have taken the car into the shop 4 times and each time no one can identify the problem. The cruise control works when it wants and shuts down randomly every time I use it. This has been happening for years.

    This is also the same issue that led to a recall of certain g6's but my model is not included.

    I have been told by the person who has worked on my car that he believes me but theres not much he can do unless he gets it to fail on his end. I have spoken with the dealer numerous times with no help in sight. I believe this car has electrical issues which is preventing the cruise from working.

    Why do I think this? When I took the car to be inspected by a NJ inspection station my car was failed due to electrical issues. I took it back to the dealer and they just put an inspection sticker on my car and said somethings cars just "fail." really?

    My driver seat also has electric issues where the power seat will not work and the seat gets stuck in the position it is in. I have to keep turning the car off and on for it to re-engage or I have to let the car sit overnight and it works the next day.

    Again, the dealer said he believes me but can't do anything until the issue happens with the car at the shop.

    my PP warranty expires in a few months and I know when I take the car in to the shop again for the cruise issue the dealer will not look at the car even though the issue has been happening for years.

    So thats where I am at.. suggestions?
  • kevgretkevgret Member Posts: 37
    Kirstie h:

    Did you not see the message I posted on April 26th?
  • kevgretkevgret Member Posts: 37
    Hey Nowaczyk:

    Have you tried giving your dealer the following information? My dealer could not fix the problem until I gave him this... then the top was corrected and I only have rattles when the weather is freezing. Once the car warms up there are no rattles.

    The following info was taken from page 26 off this forum:

    ____________________________________________________________
    Here is your solution if you top rattles over bumpy roads
    TSB#06-08-59-003B

    Part#'s 25898407 and 15815546 they need to order 2 of each.

    These are two new rubber sleeves that install on the two pins located on the rear top half. They mate with two reciever block that will need to be adjusted to the rearward most position.


    Also if you hear a creak it may be coming from the two rubber seals in the doo jam rubbing. apply some Dielectric grease and it stops.

    Service bulletin "Rattle/Creak Noise Retractable Hard Top (Convertible) (Adjust Roof) #06-08-59-003B - (07/30/2007). Models 2006-2007 Pontiac G6 Built Prior to June 1, 2007. The conditions identified in the document were
    Rattle/ticking type noises over bumps in colder weather from mid-roof area; Rattle/ticking type noise over bumps from the front top of the windshield header area;
    Creak/pop type noise over bumps from rear quarter panel area;
    Seal itch type noise;
    Snap/ticking type noise over bumps from rear quarter glass area;
    Snap/knocking type noise over bumps from rear shelf/tonneau panel/flipper door area;
    Creak/pop/thump type noise over bumps in rear wheel well area;
    Creak/pop/thump type noises over bumps in rear trunk area.
  • Kirstie_HKirstie_H Administrator Posts: 11,148
    My apologies.

    When I checked your posts in our admin tool, which lists posts chronologically from top to bottom, for whatever reason your April 26 post came up at the bottom, so all I saw was your post from today, then a gap of a few years. Don't know what is wonky in our system, but sorry that I missed that you HAD, in fact, posted recently.

    MODERATOR /ADMINISTRATOR
    Need help navigating? kirstie_h@edmunds.com - or send a private message by clicking on my name.
    Share your vehicle reviews

  • catkccatkc Member Posts: 10
    :mad: So it has been awhile since I have posted but want to let you know that I am still having issues and am so totally dissatisfied with Pontiac and GM.

    So if someone from Pontiac monitors this board, you really need to get ahold of me. It is an every 6 month issue including the research that I have paid for personally at GM/Pontiac's direction and I am still the one holding the bag sort of speak with a car that is now getting ready to need its 3rd set of tires, its at least fourth set of brakes, an oil pan leak and manifold that was leaking. On top of 5 years of frustration, hours upon hours of discussion with Specialists at Pontiac to go no where. Have over 40 pages of information about repairs done to this car from the time I purchased 5 years ago and the issues were documented the day that I pulled this 'new' car off the lot.
  • mich0324mich0324 Member Posts: 4
    I purchased my 2007 Pontiac G6 GT Convertible about 10 days ago. I have been experiencing the same rattling others mention. Initially I thought the noise came from the passenger door. The dealer disassembled the door, tightened all screws inside and stated the rattling should be gone. Unfortunately, no matter if the roof is up or down the rattling continues. I'll take the instructions for the rubber sleeves with me to the dealership and hope this will resolve the problem. Does anyone know what the approximate cost is for this repair? My car still has the 30 day CARMAX warranty, however I don't know if that includes this type of repair. Thanks!
  • mich0324mich0324 Member Posts: 4
    I recently purchased this vehicle from a used car dealership, and I noticed that the radio power/volume knob is very worn. (That is the black/transparent knob, with a circle-like arrow on it, left side on the radio.) Any ideas where I can find a replacement? I already checked junk yards, Ebay etc, but have been unable to find this particular knob. Thank you! :)
  • gmcustsvcsarahgmcustsvcsarah Member Posts: 1,964
    Good afternoon mich0324,

    Is your dealership one of our GM dealerships , or is it independently operated? Let us know if we can look into anything further for you.

    Best,
    Sarah
    GM Customer Service
  • mich0324mich0324 Member Posts: 4
    Good afternoon Sarah,

    I purchased the 2007 Pontiac G6 Convertible as a pre-owned vehicle from CARMAX in Kennesaw, GA. I am taking the vehicle back there tomorrow for repair of the "rattling noise" coming from the roof/door. Their service department said, they would look at it and repair free of charge. I hope the information I found in this thread are sufficient for the dealership to locate the problem. Any additional info is greatly appreciated. Thanks!
  • gmcustsvcsarahgmcustsvcsarah Member Posts: 1,964
    Good morning!

    I hope that everything goes well today at your service department! Unfortunately, I don't have any technical information to pass along to help in the repair process.

    All the best and have a great weekend,
    Sarah
    GM Customer Service
  • pilot89tpilot89t Member Posts: 1
    We've had our G6 for just over two years and it's had a rattle in what we thought was the convertible top. In fact, the local GM dealer looked at it and said that they could not find anything wrong with the top. We love the car and so we decided to try again and this time the dealer found a right rear bad strut. We see if this corrects the problem as the noise does sound like it coming from the top.

    A couple of other issues to note are that the resonator was causing a whine/ whittle sound whenever we accelerated plus the oil pan gasket is leaking. All this and the 2007 G6 only has ~27K miles.
  • gmcustsvcgmcustsvc Member Posts: 4,252
    pilot89t,
    Thank you for taking the time to post your concerns. Have you spoke with GM Customer Assistance? I would be happy to look into your concerns for you. Please feel free to email me directly; please include your complete contact information, VIN, current mileage, and dealer of choice. I look forward to hearing from you. I appreciate any updates on your concerns and situation.
    Christina
    GM Customer Service
    SocialMedia@GM.com
  • redbulredbul Member Posts: 14
    I now have 95,000 KM on my G6 and it is running great. Still have some KM and time on my extended warranty. Rattles are very rare, or I have become immune.

    I have been having some hesitating and jolting from the automatic transmission. Dealer found a bulletin for "TCM" which they "reprogrammed". We will see if it works. Car does seem more responsive already though.
  • cindyntxcindyntx Member Posts: 6
    I have a 2006 G6 GTP Convertible. Even when I first bought it at times going around a corner and letting off of the gas then pushing the pedal it ( the transmission) would slip then catch, it does it every now and then, so they naturally said over the years there was nothing wrong. It does it sometimes if you try to pass someone,only every now and then. Has there been a recall, or how or where do I get the recalls I have missed. I have moved 3 times but have had my mail forwarded each time but that is only good for 6 months I believe. But I also need a passenger seat adjuster the one that lowers the seat up and down, or to lay it forward. They wouldnt fix it under warranty because they said it wasnt a warranty item. I bought 2 already from them. My car is out of warranty now so does any of the recalls even apply now, or will I have to pay for it out of pocket? Now it makes a whistle type noise when I accelerate, but not when its idling or gassing in idling just when I apply the gas. Please help. It goes back to the body shop. I had a wreck and they had to replace the front end , radiator, airconditioner condesor , hood and I think thats it, could there be something like a vaccum hose making that noise only on acceleration? :confuse:
  • cindyntxcindyntx Member Posts: 6
    I have a Pontiac G6 GTP Convertible -hardtop and when it was 2 years old I had to have the complete motor replaced, it done the very same thing. I knock on wood havent had problems since but I do have the rattling. But was told by the car dealership to keep the seals, rubber trim wiped down all the time w/ conditioning cream, like Armor all or leather conditioner. It does help to stop the rattles, but i also am going to check to see if I need the 2 lil rubber seals they have spoken about on here.. I love this site..I am a woman and mu husband cant hear anything I hear and cannot hear high pitched noises at all. But I have posted a question on here so if anybody can help me I would appreciate it...Thanks :)
  • cindyntxcindyntx Member Posts: 6
    We paid $ 29,000.00 for my 2006 Pontiac G6 GTP HTC....So that sounds like a good deal but mine is the leather seats, heated and all...I have had several lil bugs w/it and the gas mileage is not never what they list.
    :D
  • cindyntxcindyntx Member Posts: 6
    Save yourself alot of money. When mine was brand new they said the same thing but completely went over all my seald and rubber this and thats and cleaned the seals and rubber parts with a conditioning type solution. I would use leather conditioner but armor all works ( SP?) but they say dust collecting on the seals etc anything that seals it off sometimes gets dust on them, and keep them wiped and clean and you will notice way less noise. I have to do this asap. Its been awhile since I have done it also. But it is a cheaper way out.
  • cindyntxcindyntx Member Posts: 6
    I was wondering, I have a 2006 G6 GTP HTC and when and only when I apply the gas I hear a whistling sound, it kind of sounds like a brake shoe squeal. But my brake shoes are fine. It only does it when I apply the gas and am in gear. It doesnt do it when idling or gassing in park, So its hard to get anyone to know what I am talking about. Is this what yours is doing? Mine is going back to the body shop Monday due to a wreck I had because a drugged woman left her car in the left hand lane coming off of a bridge and ran because of warrants and a man in front of me slammed on his brakes, as did I and I barely hit him he has a small bumper dent my G6 GTP was curled back to the hood and front tire and my airbag didnt deploy..hmm..wondering about that one..but please answer back, I would like to know before I go to the body shop because it didnt do that before the accident..Thanks Much.. :)
  • cindyntxcindyntx Member Posts: 6
    I am wondering about recalls I might have missed. I have moved 3 times w/ mail forwarding each time that only apllies for 6 months. SO if there was any recalls I am wondering what they were and how can I tell if there were some I missed. And being mine is way out of warranty now would it be out of my pocket to get it fixed? I have had my convertible top motor replaced 2 years after I had it, my stereo replaced, radiator replaced and it still uses radiator fluid on trips, it will say low coolant. On my 3rd radiator and its doing the same thing. Now on acceleration it makes a whistling noise similar to a squeal a brake shoe makes when its bad, but it doesn't make this noise idling or gassing in park, just when its driving in gear and you push the gas. It's kind of embarrassing to me, so when I get near anybody i let off of the gas so they don't hear it..lol...I also had 2 passenger side seat arms, the arm that raises the seat forward replaced and they told me when it was in warranty that it wasn't a warranty item...SO I am stuck with a small locking wrench on it..lol..kinda ghetto I know, but its normally just me in the car. And my gas mileage is not good like it said it was going to be, even with normal oil changes and I don't drive like a maniac, lol...I was just wondering if anybody has had any trouble with the transmission doing a slip every now and then? I complained about that when I first purchased it but they couldnt find anything wrong,it doesnt do it everyday sometimes once a month but I can go around a corner and then gas it and it will make a slip and a clunk then go into gear. Strange I know,somebody said it was a recall on that, it doesnt do it in the manual shifting though, only in the automatic setting. But I dont like to use the standard shifting actually I forget I even have it..lol..If anybody has had any of these problems and knows anything about the recalls or anything listed above please get back with me,. It goes back to the body shop Tuesday. I would like to have all my ducks in a row by then..thank you all.. :)
  • gmcustsvcsarahgmcustsvcsarah Member Posts: 1,964
    Good afternoon cindyntx,

    We'd be happy to answer any warranty questions you may have and check for any open recalls if you wanted to send us the last 8 digits of your VIN via email at socialmedia@gm.com

    Sarah, GM Customer Service
  • redbulredbul Member Posts: 14
    You can read about the whistling sound if you search this site. It is likley part of the exhaust system. There is an original design flaw in it. I read on this site that people were getting their entire exhasut system replaced ($900) by GM. I mentioned this to the dealer, and got a shiny new system gratis. Now the new system is starting to make the same whistling sound. I doubt I'll get another free system. Another contributor said he/she went to a muffler shop and got the leak fixed for about $50. I am just concerned such "outside" repair might void the warranty on something else. The whistling will get worse until it will be embarassing to drive.
  • redbulredbul Member Posts: 14
    You transmission slipping problem seems to describe how my problem started out. I complained about it one time I took the car into the dealer, but they said they could not find anything. However, the problem went away from a long while after that. It started to gradually come back, then got decidely worse. The dealer drove it and sensed it as well. The transmission fluid level was low and dirty. This corrected, the issue was not resolved. They then found a bulletin which called for an adjustment of the TCM. This seemed to help a bit, but the hesitation and jerk is slowly coming back. It is most noteable when starting from on a slight uphill after stopping at a light. ((I happens most often at the same stop and start at a light midway on my drive home!) I wonder if the computer is over compensating for the hill start. Also I wonder if one or more of the brakes is sticking on slighlty then releasing when the engine is reved up a bit.

    Perhaps it could be a function of a roolback prevention feature if indeed the car has one. Or it could be the antislip kicking in somehow. My tires are original and the rubber is hard and nearing the end of its tread life.

    To avoid the problem, I start using the manual shift (touchtronic equipped car). So it seems it could be a problem with the computer regulating the automatic transmission incorrectly by missreading a sensor.
  • gmcustsvcsarahgmcustsvcsarah Member Posts: 1,964
    Good morning redbul,

    I see in an earlier post that you have used kilometers as your unite of measure. If you're writing from Canada and wish to speak with Customer Assistance, you can contact GM of Canada at 800-263-3777 (Hours: M-F 7:30am - 11:30pm, Sat 7:30am - 6:00 EST).

    All the best,
    Sarah
    GM Customer Service
  • kevgretkevgret Member Posts: 37
    I had my exhaust replaced by my GM dealer. The car made a horrible whistle soundwhen accelerating.

    The dealer had the nerve to tell me it's no big deal.. well that didnt fly and he had to give me a complete exhaust system. It's a known problem with the G6 convertibles...

    I still cannot get my cruise control fixed and the car is out of warranty now. If I had to do it all over again I'm not sure if I would buy this car again.. too many headaches for the money I paid.

    I tried getting my cruise fixed numerous times but here I am with no warranty and no cruise.
  • mich0324mich0324 Member Posts: 4
    edited September 2012
    Hi,

    My rattling sound in my 2007 G6 GT Convertible seems to come from the roof top while stored in the trunk. I have had this car into the dealership (not GM) several times, and they followed the service bulletin to the "T", exchanged some rubber parts, greased it, but it still rattles. This does not appear to be a whistling sound from the exhaust. It's a rattling sound like something is "stacked" in the trunk and "shaking" going over every little bump on the road.

    In addition, my car is now displaying the "service airbag" message on the radio. This message comes and goes, with no rhyme or reason, no matter if someone sits in the passenger seat or not. I called the GM headquarters and they were kind enough to make an appointment for me with the local GM dealership. They said, if it is determined that I did not cause this problem due to misuse or negligence, GM would cover the cost. However, I have to pay for the diagnostic out of pocket first. I saw online that other 2007 G6 Convertible owners are having this problem as well. And there was a recall on some VINs from 2007. (Mine not included!) The repair cost is anywhere from $800 to $1,000, as the entire seat cushion has to be replaced.
    Well, needless to say, I am disappointed with my recent pre-owned vehicle purchase. Just like Kevgret, if I could do it over again, I would consider other makes and models. :lemon:
  • billdamanbilldaman Member Posts: 37
    If you complain about the many problems that you have with one of these cars on this particular forum you get bashed by a few "CONCERNED" owners who dont want the complainers to spoil the "fun" for some one who might be interested in buying one.

    Why all the concern? If you love your car with all its top and door rattles, poor gas mileage, lousy transmission, ridiculous handling, then fine. But why do you have to criticize those who write about their issues?

    Because you know the resale on these loads is sinking far faster than the value of your loans. You want to keep the spin on the internet good for your car so you wont get hurt so bad when you unload it as upside down as you already are.

    Its too late for that. I took my pain a year ago and couldnt be happer. Drove off the dealers lot right by my Blue beauty G6 and never looked back. Although I dont get all the complements in the gas station or the ooosss and ahhas from people seeing the roof in action anymore, that kind of attention getting is for morons.

    GM knew about all these problems with these vehicles and shipped them anyway. Too bad that I found out after I purchased mine.

    Maybe someone can read ALL the viewpoints in this forum, decide for themselves and hopfully not make a major mistake!

    This is a great forum BTW, I enjoy all the comment
  • connermtconnermt Member Posts: 1
    Mine did the same thing. It's the exhaust. My 08 was still under the powertrain warranty so there was no cost. Dealer said this is a known problem for convertibles, but there's no recall.
  • ownerof4chevysownerof4chevys Member Posts: 35
    I had my 2007 G6 HTC in for the airbag light 3 times while under warranty. I ran out of calendar time under the warranty, so I complained to GM that the airbag light still comes on with no apparent reason. They told me that I would have to pay for the diagnostic check before they would know if my problem would be covered. Since it is a SAFETY issue, I threatened to report the problem to NHTSA. The dealer finally fixed the problem by replacing the module under the passenger seat with a new wiring kit as well. The problem is gone. No charge!!! (I have only 18,000 miles on the car right now.)
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