20 Most Recent 2011 Buick LaCrosse Questions & Answers


2011 Buick... | Answered on Jun 01, 2019

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 .

2011 Buick... | Answered on Apr 08, 2018

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.

2011 Buick... | Answered on Jan 14, 2017

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.

2011 Buick... | Answered on Dec 15, 2016

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 !

2011 Buick... | Answered on Dec 07, 2016

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

2011 Buick... | Answered on Aug 26, 2016

Try replacing the bulb.

2011 Buick... | Answered on Jan 06, 2016


2011 Buick... | Answered on Jun 24, 2015

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.

2011 Buick... | Answered on May 28, 2015

Pull the back seat back rest off crawl into trunck. Pull trunck release. If that doesn't work Lock Smith.

2011 Buick... | Answered on Feb 25, 2015

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

2011 Buick... | Answered on Feb 22, 2015

Try using a Drain cleaner first, then go for the big guns, such as a drain snake.

2011 Buick... | Answered on Feb 22, 2015

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