Car Problem Reports

Buick LaCrosse Check Engine Light Due to Gas Cap Issue

 
Buick LaCrosse Problem
34 Reports
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Model Years Affected: 2005, 2006, 2007, 2008, 2009, 2010, 2012

Average Mileage: 63,394 mi (10,200 mi - 110,000 mi)

Verified

A Loose or worn gas cap may cause Check Engine Light to illuminate.

  • Visitor, , 37,000 mi

    Check engine light
    Leak in pressurized system
    Gas inlet defective
    Replaced $77 at dealer

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  •  Rookie

    Check engine light stayed on. Remote diagnostic (Onstar)indicated that problem was with the gas cap. Took car to dealer, told them and they replaced the cap. Problem resolved.

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  • Visitor, , 22,098 mi

    gas cap light cap looks ok then engine check light guess I should of bought a donkey

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  • Visitor, , 80,000 mi

    Check gas cap light keeps coming on intermittently and now check engine light on. Replaced gas cap
    and okay for awhile. Both engine light and check gas cap light went off. Now, back on again.
    First check gas cap (which I did) and now engine light.

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  • Visitor, , 52,000 mi

    I have selected "me too" to 3 other common problems with the Lacrosse. I contacted buick for assistance on repairs and they said Garber Buick in Saginaw Michigan would only agree to $50 assistance on a $443 repair bill. How sad! But they had no problem taking bail out assistance from my tax paying money!!!!!!!!!!!!

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  •  Enthusiast

    We had this issue too. Mechanic found the problem.

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  • Visitor, , 89,000 mi

    Always low feul gas cap or chek gas cap

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  •  Rookie

    engine light

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  • YSV, , 60,000 mi
     Rookie

    MY CHECK ENGINE LIGHT IS ON AND MY ONSTAR DIAGNOSTIC IS SAYING THAT IT HAS SOMETHING TO DO WITH THE EMISSION SYSTEM.

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  •  Rookie

    check gas cap would come on if you did not clear it then check engine light comes on

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