2011 Lacrosse Trunk Mysteriously Opens

After two months with no problem with my trunk I found the trunk open this morning. The Keys fobs were upstairs and the car was in the garage and had not been driven the day before.
 
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I had a meeting with the General Sales Manager and Service Department manager over the random trunk opening issue. The General Manager reviewed my service orders and was very disturbed.
The General Sales Manager accepted and agreed with my proposal to replace for the second time the trunk pad release, replace the wire connectors wether there is a presence of corrosion or not, install new module and any other component pertaining to the trunk release.
 
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I had a meeting with the General Sales Manager and Service Department manager over the random trunk opening issue. The General Manager reviewed my service orders and was very disturbed.
The General Sales Manager accepted and agreed with my proposal to replace for the second time the trunk pad release, replace the wire connectors wether there is a presence of corrosion or not, install new module and any other component pertaining to the trunk release.

I noticed in your post before you edited it that you stated that the dealer would consider a buy back. I still have issues with my trunk and GM Customer Services response was to keep carrying it to the dealer and the dealers response was that they could not duplicate the problem.

GM Customer service stated that their final word is that the remote trunk feature is functioning properly and that my wife and I should not keep the keys in our pockets. Their statement implies "Customer Last".
 
I noticed in your post before you edited it that you stated that the dealer would consider a buy back. I still have issues with my trunk and GM Customer Services response was to keep carrying it to the dealer and the dealers response was that they could not duplicate the problem.

GM Customer service stated that their final word is that the remote trunk feature is functioning properly and that my wife and I should not keep the keys in our pockets. Their statement implies "Customer Last".

I was told that the problem could not be duplicated too but after this last time I decided that , that response was not good enough so I spoke with the General Sales Manager.
The General Sales Manager did state that if this repair does no resolve the issue he will look at a buy back.
The repairs that I requested are being done this morning. I guess it depends on who you speak with at Buick as I was told they were aware of the issue and yes, they did state as I know that the random trunk can not be duplicated but it does happen.
I have seen the key fob issue but that is not my problem. My trunk will open without the key fob being pressed and there are others that will do the same that is the reason for the TSB.
You have to put your foot down. This is a major issue and being told not to put the key fob in purse or pocket, for what it was designed to do is not only unacceptable but pure ludicrous.
Does your trunk open on it's own or because keys on the key chain are pressing the trunk release button on the key fob?
If the problem is with your key fob ask for new key fobs, maybe the trunk button will be less easier to press. The next step would be to place a key with the largest head on the king ring so all other keys are behind it, the larger head of the key will not press the trunk button on the fob and it will block any other key on your ring from doing so.
 
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The only other keys on the ring are car keys and I don't see any way that they can depress the trunk release. I put my foot down - I even contacted the BBB. I did not get anywhere and as I said GM Customer service stated that their final word is that the remote trunk feature is functioning properly and that my wife and I should not keep the keys in our pockets.

I don't know anything else that I can do except spread the word. I told GM that they have lost a loyal customer. I have bought eight brand new GM cars over the years - averaging one about every three years.
 
The only other keys on the ring are car keys and I don't see any way that they can depress the trunk release. I put my foot down - I even contacted the BBB. I did not get anywhere and as I said GM Customer service stated that their final word is that the remote trunk feature is functioning properly and that my wife and I should not keep the keys in our pockets.

I don't know anything else that I can do except spread the word. I told GM that they have lost a loyal customer. I have bought eight brand new GM cars over the years - averaging one about every three years.

Depending on the size of the key head, if the fob is in your pants pocket and you are doing allot of bending, a key can be in a position where the right amount of pressure place on the key can cause it to press the trunk release button on the key fob, I have duplicated this problem.
If this is not your case than the trunk is opening on it's own. In this case the TSB states that the problem is moisture on the connectors or trunk release key pad. The TSB calls for the connectors and trunk key pad to be replaced, have you had the TSB performed on your car?
The first time the TSB was performed on my car the trunk key pad release was replace but not the connectors. As the problem has persisted they are now going to replace the trunk key pad,connectors, and body control module.
Have you tried arbitration? It is free and you have nothing to loose.
Talking to the General Sales Manger has worked for me and I am very surprised at the position that he has taken, which is to get the problem resolved or get me out of the car. I really am hoping that this repair will work as I really do not want to do the buy back. All the bugs have been worked out of my car except for the trunk issue, I like my car and if I trade I would be looking at a 2014 and not a 2013.
 
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If the issue is found to NOT be electronic then consider this - you may have some mildly bent sheet metal in the rear hatch. Did you pack a lot of stuff in there to haul recently then had to work extra hard to force it shut? This could bend the metal that the latch mounts into just a little yet enough to cause bad alignment that makes it pop open on its' own. I am a recently retired auto body man. I love all GM vehicles above all others, but there are some shortcomings to remember - all GM autos are made with MUCH thinner steel. I used to watch certain kinds of vehicles come in with a common sort of wreck damage, then found out the details of how fast the wreck happened but noticed that the GM vehicles that went thru the same kind of wreck in the same type of vehicle always took a lot more damage because of the thinner steel. I used a micrometer to verify this. Volvo's & some Mazda"s have some of the thickest steel in anything, but I enjoy GM's more & choose to stick with them. I only point this out because I have seen thinner steel bend a lot easier than you would suspect it would. I hope this helps.
 
The TSB hs been performed. The problem is with the fob. It only opens on occasion when the fob is in one of our pockets.

As I stated: GM Customer service stated that their final word is that the remote trunk feature is functioning properly and that my wife and I should not keep the keys in our pockets.
 
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The TSB hs been performed. The problem is with the fob. It only opens on occasion when the fob is in one of our pockets.

As I stated: GM Customer service stated that their final word is that the remote trunk feature is functioning properly and that my wife and I should not keep the keys in our pockets.

I suspect a key is pressing the button on the fob. I have seen this happen and can duplicate it. Ask for a GM Customer Service District Manager.
See if the General Sales Manager at your dealership will get you a new key fob.
Go to another dealership and see if they will not help you.
If you place a thin plastic tag on your key ring so that it is the first thing to hit the button side of the fob, I think your problem will be solved.

If you honestly believe that you have tried everything that you could and have exhausted all measures than I guess there is no more to be done.
I guess I am lucky to have a dealership that puts the customer first. I have also had good support from the Buick Customer Service District Manager that has been handling my case.

Good Luck............
 
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I just got my car back and one of the things that is different about the repair that was done this time is, the connectors now come with the trunk release key pad. This makes me think that replacing the connectors is no longer an option. The connectors were not replaced at the first repair.
I also had the body control module replaced, they reprogramed it on the last repair. I feel that this repair is going to work. I will keep this thread posted.
 
The TSB hs been performed. The problem is with the fob. It only opens on occasion when the fob is in one of our pockets.

As I stated: GM Customer service stated that their final word is that the remote trunk feature is functioning properly and that my wife and I should not keep the keys in our pockets.

It sounds like you are working with people who do not want to work with you.
 
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The only way to be 100% certain that it's not the fob is to disable it by removing the battery. I know that's not something that anyone wants to do but until it's tried, the fob is suspect. My trunk has opened on it's own on several occasions but in every case I could not rule out the fob. So now I'm being careful with it and the problem seems to have almost stopped. I agree that the fob is a poor design, especially the "switch blade" key which pops out on it's own. I fixed the key issue by gluing a thick plastic washer around the button and If the trunk problem continues, I'll try something similar with the trunk button.
 
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The only way to be 100% certain that it's not the fob is to disable it by removing the battery. I know that's not something that anyone wants to do but until it's tried, the fob is suspect. My trunk has opened on it's own on several occasions but in every case I could not rule out the fob. So now I'm being careful with it and the problem seems to have almost stopped. I agree that the fob is a poor design, especially the "switch blade" key which pops out on it's own. I fixed the key issue by gluing a thick plastic washer around the button and If the trunk problem continues, I'll try something similar with the trunk button.

There are post on how to stop the switch blade key from releasing.
 
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I fixed the key issue by gluing a thick plastic washer around the button and If the trunk problem continues, I'll try something similar with the trunk button.

I'm having trouble picturing this.

There are post on how to stop the switch blade key from releasing.

I can't find them, where are they?
 
The FOB key extending unintentionally can be stopped by placing a small piece of double sided, padded tape in the slot under the key and then pressing the key in place. It is still possible, if needed, to peel the key off the sticky tape.
 
The FOB key extending unintentionally can be stopped by placing a small piece of double sided, padded tape in the slot under the key and then pressing the key in place. It is still possible, if needed, to peel the key off the sticky tape.

Ah, gotcha. I guess that beats my liquid nails idea 😀
 
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Do you think it is possible to remove waterproof Gorilla Glue? 😱

😕

My jokes don't seem to go over well on here. I have no intention of liquid nails-ing my keys 🙂
 
I'm having trouble picturing this.

It's just a thick washer or spacer with an id just bigger than the key release button that's glued on to the fob and prevents pushing the button. You can still push the button but you have to use something small to push it with. The spacer that I used is plastic and is almost the same height as the button.
I'll try to post a picture.
 
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