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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.


really awful
Typical Repair Cost:
No data
Average Mileage:
7,917 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. not sure (3 reports)
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2011 Buick LaCrosse engine problems

engine problem

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2011 Buick LaCrosse Owner Comments

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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