2011 Lacrosse 3.6 NO POWER

[msanden]

Hi all,

Looking for some help. Had intermittent electrical issues with the car, radio cutting in an out mainly. Now there is absolutely no power at all, had to use the key to get into the car. Ignition won't release the key once it is put in. I am on my second battery so I don't think thats the issue. We had a similar issue in the past and the dealer said it was a "weak Maxi-fuse."

Battery connections are tight and clean, it doesn't appear that any fuses are blown. But the positive terminal on the battery was hot to the touch.

Anyone hear of this before or have any recommendations?

Any help would be greatly appreciated! THANKS

 

[MelsRegal]

Fuses either conduct current or melt due to an overdraw of amperage, they are never 'weak'.
Your hot terminal could be due to high resistance caused by a bad cable.
Do you have a voltmeter to test the battery?

 

[msanden]

I don't but I will take the battery to the parts store and have them test it. We had this same problem a few years ago and replaced the battery right away, but we had the same problem right after. Maybe just replace battery cables? I should also add that the fob batteries are good.

 

[2007LucerneCXL]

It's seems like this is related to you previous post on starting problem.

2011 Lacrosse won't start

I have had this car for about 3 months now and we are having troubles with it not starting. I have the key/fob unit without the push button ignition. After driving around town for a while (seems like this happens when it gets hot), we get in to start the car and when we turn the key we get one...

buickforums.com

It may need to have a master technician that's able to look at all the past problems and repairs who can truely troubleshoot electrical issues IMO.

 

[msanden]

hey guys. when i jumped the car I connected the positive cable to the battery post and no luck. I then bypassed that small positive cable (about 3 inches long) on that flat fuse tray on top of the battery and the car got power immediately. I went to the dealership and bought the whole fuse assembly which included the 3 inch positive cable for 70 bucks. Car seems to be working now. Anyone else have a similar issue?

 

[Rickyrick]

Hi all,

Looking for some help. Had intermittent electrical issues with the car, radio cutting in an out mainly. Now there is absolutely no power at all, had to use the key to get into the car. Ignition won't release the key once it is put in. I am on my second battery so I don't think thats the issue. We had a similar issue in the past and the dealer said it was a "weak Maxi-fuse."

Battery connections are tight and clean, it doesn't appear that any fuses are blown. But the positive terminal on the battery was hot to the touch.

Anyone hear of this before or have any recommendations?

Any help would be greatly appreciated! THANKS

HERE IS AN EMAIL I JUST SENT TO A FEW OTHER MEMBERS ---- how interesting , ????? hmmmmmmm ???? check this out , sept 2020 ,i drive to va hospital ,go in to dr's appt , 3 hrs later , come to my buick lacrosse cxs 3.6 l ,when i click my remote to open door ,i hear a very fast clicking under hood . i get in catr push to start button and nothing .,my dash say object detection disabled and stabilitrac inoperative . i get out car , close door ,open hood and look around , then i hear something coming from engine dept. and fuse box ,very fast clicking . i later return with tools and diag. equipment . i get UO100 and PO23F . I CHECK FUSES AND #10 UNDERHOOD THAT FEEDS ECM IS BLOWN . keeps burning them . we are today ,8/12/2022 and car is still parked , i have gotten 1000;s of papers downloaded and printed ,got access to chilton online and pro demand and still not any closer to fixing my car . you are the closest to mine's problem i ran accross !!! how did you fix it please ?
THIS CAR IS MY WORST NIGHTARE LOL !!!! DID YOU EVER FIX YOURS ?

 

[Rickyrick]

hey guys. when i jumped the car I connected the positive cable to the battery post and no luck. I then bypassed that small positive cable (about 3 inches long) on that flat fuse tray on top of the battery and the car got power immediately. I went to the dealership and bought the whole fuse assembly which included the 3 inch positive cable for 70 bucks. Car seems to be working now. Anyone else have a similar issue?

WOW WHAT LUCK ,GOOD FOR YOU .I HAVE CHESE THESE HI AMP FUSES MANY TIMES THEY ARE GOOD ,BUT LOOK AT WHAT I WROTE TO SEVERAL MEMBERS ---- how interesting , ????? hmmmmmmm ???? check this out , sept 2020 ,i drive to va hospital ,go in to dr's appt , 3 hrs later , come to my buick lacrosse cxs 3.6 l ,when i click my remote to open door ,i hear a very fast clicking under hood . i get in catr push to start button and nothing .,my dash say object detection disabled and stabilitrac inoperative . i get out car , close door ,open hood and look around , then i hear something coming from engine dept. and fuse box ,very fast clicking . i later return with tools and diag. equipment . i get UO100 and PO23F . I CHECK FUSES AND #10 UNDERHOOD THAT FEEDS ECM IS BLOWN . keeps burning them . we are today ,8/12/2022 and car is still parked , i have gotten 1000;s of papers downloaded and printed ,got access to chilton online and pro demand and still not any closer to fixing my car . you are the closest to mine's problem i ran accross !!! how did you fix it please ? ....................

I HAVE 1000'S OF PRINTED DIAGRAMS,SCHEMATICS AND INFO ON THIS CAR AND NOTHING HAS HELP SO FAR IN 2 YRS ! 🙁

 

[Rickyrick]

I don't but I will take the battery to the parts store and have them test it. We had this same problem a few years ago and replaced the battery right away, but we had the same problem right after. Maybe just replace battery cables? I should also add that the fob batteries are good.

I REPLACED THE BATTERY QUITE A FEW TIMES ,I AM GLAD AUTO ZONE HAS SUCH A GOOD WARRANTY SYSTEM IN EFFECT,FOB AND CABLES . BATTERY IS ALMOST 200 BUCKS . HERE IS AN EMAIL I SENT TO MEMBERS HERE ----how interesting , ????? hmmmmmmm ???? check this out , sept 2020 ,i drive to va hospital ,go in to dr's appt , 3 hrs later , come to my buick lacrosse cxs 3.6 l ,when i click my remote to open door ,i hear a very fast clicking under hood . i get in catr push to start button and nothing .,my dash say object detection disabled and stabilitrac inoperative . i get out car , close door ,open hood and look around , then i hear something coming from engine dept. and fuse box ,very fast clicking . i later return with tools and diag. equipment . i get UO100 and PO23F . I CHECK FUSES AND #10 UNDERHOOD THAT FEEDS ECM IS BLOWN . keeps burning them . we are today ,8/12/2022 and car is still parked , i have gotten 1000;s of papers downloaded and printed ,got access to chilton online and pro demand and still not any closer to fixing my car . you are the closest to mine's problem i ran accross !!! how did you fix it please ?...

I STILL WANT TO FIX THIS !!! IT IS TERRIBLE BUICK LETS THIS HAPPEN !!! SO MANY PEOPLE HAVE HAD THESE PROBLEMS . I HAVE TRIED TO REACH OUT TO GM AND BUICKS CUSTOMER SERVICE AND WHAT A DISSAPOINTMENT AND JOKE .

 

[TrevB]

I REPLACED THE BATTERY QUITE A FEW TIMES ,I AM GLAD AUTO ZONE HAS SUCH A GOOD WARRANTY SYSTEM IN EFFECT,FOB AND CABLES . BATTERY IS ALMOST 200 BUCKS . HERE IS AN EMAIL I SENT TO MEMBERS HERE ----how interesting , ????? hmmmmmmm ???? check this out , sept 2020 ,i drive to va hospital ,go in to dr's appt , 3 hrs later , come to my buick lacrosse cxs 3.6 l ,when i click my remote to open door ,i hear a very fast clicking under hood . i get in catr push to start button and nothing .,my dash say object detection disabled and stabilitrac inoperative . i get out car , close door ,open hood and look around , then i hear something coming from engine dept. and fuse box ,very fast clicking . i later return with tools and diag. equipment . i get UO100 and PO23F . I CHECK FUSES AND #10 UNDERHOOD THAT FEEDS ECM IS BLOWN . keeps burning them . we are today ,8/12/2022 and car is still parked , i have gotten 1000;s of papers downloaded and printed ,got access to chilton online and pro demand and still not any closer to fixing my car . you are the closest to mine's problem i ran accross !!! how did you fix it please ?...

I STILL WANT TO FIX THIS !!! IT IS TERRIBLE BUICK LETS THIS HAPPEN !!! SO MANY PEOPLE HAVE HAD THESE PROBLEMS . I HAVE TRIED TO REACH OUT TO GM AND BUICKS CUSTOMER SERVICE AND WHAT A DISSAPOINTMENT AND JOKE .

I know this is old post but are you still having the issue or did you set the car on fire by now?

 

[02LTD2.0]

They're BOTH gone for 3 and 5 years respectively. Click on their names to check.