2011 Buick LaCrosse engine problems: engine light comes on

Engine Light Comes On

2011 Buick LaCrosse

This problem may be covered under warranty. Ask your Buick dealer.


pretty bad
Typical Repair Cost:
No data
Average Mileage:
18,974 miles
Total Complaints:
5 complaints

Most Common Solutions:

  1. not sure (5 reports)
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2011 Buick LaCrosse engine problems

engine problem

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2011 Buick LaCrosse Owner Comments

problem #5

Aug 242016

LaCrosse CXL 3.2lV6

  • Automatic transmission
  • 22,120 miles


Why would engine light come on when car has only 22000 miles??????? Why can't it be fixed!!!!! I am a long!!!!!!! time buick owner so I expect this to be fixable!!!!!! I won't have another Buick if this is not fixable!!!!!!! I rave about my buicks so I NEED HELP!!!!!!!!

- , Nesbit, MS, USA

problem #4

Aug 202016

LaCrosse CXS 3.4L

  • Automatic transmission
  • 49,000 miles


I owner a 2011 Buick LaCrosses CXS and Saturday, (8/20/2016) while driving on a level road surface, a message flash on my dash but I did not have enough time to read it. Shortly thereafter my engine light came on and the vehicle started to lose power. There was a slight burn smell. I attempted to change lanes to the right in an effort to pull over to the side but before I could complete, the light went out and full power seems to be restored.

Today, 8/22/2016, I planned to take the vehicle in to the dealership to have it checked out. Is there any advice and/or suggestion that you the manufacture can offer at this time?


N. Omar Smith

Update from Aug 26, 2016: Okay, after the dealer check the vehicle they conclude that the fuel injectors (1, 3, & 5) needs to be change. I am out approx. $1,200.00. GM needs to address this issue. I don’t think that my injectors were the problem, but I am at the mercy of the dealership!

- , Houston, TX, USA

problem #3

Nov 122012

LaCrosse CXL

  • Automatic transmission
  • 18,000 miles

My LaCrosse CXL engine has aluminum block with cast iron heads; two metals that cool at different rates allowing coolant to leak into cylinders causing carbon buildup on a 'cold' start. GM knows of this problem; first discovered in the Enclave. Engine no longer in it, but they continued to put it in the LaCrosse...to use up inventory??

OnStar identified the problem of a 'cylinder missfire' when a diagnosis was requested while driving and the light wouldn't go out. Three visits in two weeks for this problem; the engine can't be fixed and GM knows it !

The engine can't be switched out because of the computers; they identify with a particular vehicle and its pieces and parts.

Force the issue with the Service Manager; have GM provide a solution.

- , Dawson, PA, USA

problem #2

Apr 092012

LaCrosse Chrome

  • Automatic transmission
  • 2,850 miles

Engine light comes on. Go to dealer they put it on the computer, they order a fuel part. Light comes on again only hours after repair. Picked car up from service shop did a few errands parked for the evening. next day drove the car check engine light on again.

- , Cairo, GA, USA

problem #1

Apr 092012

LaCrosse Chrome

  • Automatic transmission
  • 2,900 miles

Check engine light appeared only after 1800 miles. Dealer replaced fuel module. It worked for maybe a day. The check engine light appeared again.

- , Cairo, GA, USA

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