2011 Buick LaCrosse - Answered Questions & Fixed issues

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2011 Buick lacrosse radio and temp controls locked

This often happens when the vehicle looses power. It is part of the anti theft system. There should be a code in the owners manual to unlock it when it prompts for the code. If there is not one in the manual or you don't have the manual, you will need to visit a dealer to get an override code. They should be able to give you a code for it in the future.
3/26/2022 7:44:46 AM • 2011 Buick... • Answered on Mar 26, 2022 • 385 views
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Location for ambient air temp sensor 2011 buick locrosse

https://www.gmpartswarehouse.com/oem-parts/gm-temp-sensor-9152245?origin=pla&gclid=EAIaIQobChMIpbTEwsXI4gIVkLrACh1jIAfSEAQYASABEgKx3PD_BwE
6/1/2019 2:59:36 PM • 2011 Buick... • Answered on Jun 01, 2019 • 790 views
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How do i reprogram my sunroof on my 2011lacrosse

You don't , unless you have a $6,000 factory scan tool . Your best bet , take it to a buick dealer . Electronic's an a control module involved .
4/8/2018 10:51:23 PM • 2011 Buick... • Answered on Apr 08, 2018 • 1,410 views
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2011 Lacrosse makes a ticking sound under the hood

That noise is most likely the valve lifters, some noise is normal on these GM engines, if it is really noisy that is a problem. Do you use the correct grade of oil and change at least every 6,000 miles.
1/14/2017 12:50:33 AM • 2011 Buick... • Answered on Jan 14, 2017 • 1,704 views
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2011 Buick lacrosse replaced battery car started then died after 15sec. No pwr checked all fuses-relays-cables-key stuck in column can't unlock to move cars. any ideas dealer no help.

Since you have no power to the ignition switch( you can't get the key out). Look to the main fuses first. You can see them threw the top. If the solder joint isn't shiny, pull them first. Since it did start and run, it isn't the ignition switch. Wiring most likely in place. Fuse panel could be bad. I've replaced a lot of them. But not with out diagnostics.
12/15/2016 3:00:48 AM • 2011 Buick... • Answered on Dec 15, 2016 • 462 views
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I replaced my battery this afternoon -30. It turned over and idles fine but now my key won't come out of the ignition, the car won't go out of park, no powered anything works. Help?

On newer vehicle's if you don't use another power supply when changing a battery modules can go night - night an not wake up ! Battery Disconnect or Replacement Problems Then your stuck having your vehicle towed to the dealer !
12/7/2016 4:22:01 PM • 2011 Buick... • Answered on Dec 07, 2016 • 292 views
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2011 buick lacrosse door lock does not work on drivers door only.

There could be many problems in this situation. Here is a list of some things to check: 1.) Check the wire connection in the door jamb where the wires transfer from the vehicle to the door. Sometimes these connections get a little off and things start acting goofy because the door being open and closed all the time(nothings perfectly designed). 2.) Check the relays in the fuse box, I can't remember if on this model vehicle if they used separate relays for each door or just one for all of them, but the relay could be bad. 3.) Check the locking mechanism inside the door by taking off the door panel and using a multi-meter and a 9 volt battery. I've checked the locking mechanism inside doors with a 9 volt battery before to make sure the mechanism was able to do it's job without being hooked up to the vehicle's power source
8/26/2016 3:51:38 PM • 2011 Buick... • Answered on Aug 26, 2016 • 1,158 views
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THIRD BRAKE LITE DON'T WORK

Try replacing the bulb.
1/6/2016 2:43:04 PM • 2011 Buick... • Answered on Jan 06, 2016 • 218 views
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Remove headrest on Buick LaCrosse

IF YOU PUSH THE BUTTON AT THE BASE WHERE THE SHAFT GOES INTO NTHE SEAT AND PULL UP IT SHOULD COME OUT
6/24/2015 8:29:49 PM • 2011 Buick... • Answered on Jun 24, 2015 • 989 views
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Is there a shut off sensor when the oil pressure drops and car shuts off?

Don't know about your car specifically, but most cars with electric fuel pumps are equipped with a oil pressure switch which cuts power to the fuel pump when oil pressure drops. The idea is that in a wreck when engine dies, pump should not run in case lines are cut which could dump fuel on ground and create fire hazard. Switch usually located with normal oil pressure sender.
5/28/2015 3:36:34 PM • 2011 Buick... • Answered on May 28, 2015 • 369 views
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How unlock trunk of 2011 buick lacrosse if lock is not working?

Pull the back seat back rest off crawl into trunck. Pull trunck release. If that doesn't work Lock Smith.
2/25/2015 2:19:29 PM • 2011 Buick... • Answered on Feb 25, 2015 • 455 views
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2011 Buick Lacrosse how do you remove the cover on the positive post!!!

Hi Keven, I'm Al the owner of Big As Auto Repair Keven, that flip down cover can be a bear to flip up some times especially if its been on there a long time. Take a screw driver and lay something across the battery to use as a ramp and take the screw driver and using the ramp pry upward on the very end of the cap and it should pop up. NOTE: Be careful though because some of those covers actually unlock from the other end. Hope this helps and if you need further assistance go to my website. Have an awesome day Keven! Auto Repair
2/22/2015 2:52:00 PM • 2011 Buick... • Answered on Feb 22, 2015 • 314 views
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Unclog drain tub

Try using a Drain cleaner first, then go for the big guns, such as a drain snake.
2/22/2015 2:23:34 PM • 2011 Buick... • Answered on Feb 22, 2015 • 85 views
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My 2011buick lacrosse is making a cliking noise

need to put high octane gaz only
2/11/2015 4:06:52 AM • 2011 Buick... • Answered on Feb 11, 2015 • 323 views
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Say delete device on radio screen after battery

You need to put a radio code (most are a four (4) number code) If it is not in your owners manual, in the radio section, then you will need to go to the Dealer to get it.
10/17/2014 3:07:23 PM • 2011 Buick... • Answered on Oct 17, 2014 • 138 views
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How to put a freon into 2011 Buick Lacrosse car?

Visit a local Autozone and purchase a R134-A charging kit. Comes w/1 can of 134-A and the connection hose needed for your vehicle and can. Follow the directions very carefully !!! Wear protection goggles, mechanics gloves, and be careful. Note: Engine must be running and AC must be on High Cool for the system to accept a freon charge.
6/21/2014 10:11:11 AM • 2011 Buick... • Answered on Jun 21, 2014 • 4,302 views
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How to put a freon into a 2011 Buick Lacrosse car?

there is an exact amount of gas to put in the system and if there is insufficient gas as you think then it would be advisable to have the system checked out for leaks otherwise you will not achieve anything.. Take it to an accredited auto air conditioner shop and save money.
6/20/2014 7:20:21 AM • 2011 Buick... • Answered on Jun 20, 2014 • 610 views
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Remote won't start engine anymore

reset remote if dealer remote ask them to reset remote
11/9/2013 6:49:47 AM • 2011 Buick... • Answered on Nov 09, 2013 • 205 views
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Key stuck ignition

If the shiftier does not go into park all the way , this will keep the key from coming out ...
10/23/2013 3:40:29 PM • 2011 Buick... • Answered on Oct 23, 2013 • 112 views
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