2009 Buick Enclave Check Engine Light Due to Gas Cap Issue

A loose or worn gas cap may cause check engine light to illuminate.

Affected Model Years

This issue affects Buick Enclave model years 2008, 2009, 2010, 2014, .

31 people reported this problem

  • 2009 69,574 Miles
    check engine light has been on 3 days - OnStar says it's a loose gas cap but I've tightened it 3 times and the light is still on. 2nd call to OnStar said "Car has to be driven normally for 7 times and the light will go out"??? Why 7 times?

  • 2009 146,000 Miles
    check engine light came on today, can you tell me what might be the problem?

  • 2009 54,502 Miles
    engine light is on and we are trying to solve the problem. I will look into the gas cap as well.

  • 2009 140,000 Miles
    No more topping off the tank! Replaced gas cap!

  • 2009 131,000 Miles
    Gas cap loose error popped up and then check engine light came on

  • 2009 110,000 Miles
    There is a clogged air line or filter in the line coming from the gas tank to the engine. This is what was wrong with mine. This is how it breathes

  • 2009 1,006 Miles
    Well it was light came on they fixed it in Columbus Nebraska then it came on again in Council Bluffs they said it was a gas cap again took it all apart put a new one on still the light came back on and then they said it was the fuel pump had my car for 8 days for 2 hour fix. Well the light is back on way. Dash said gas cap lose

  • 2009 47,000 Miles
    The gas cap problems continues in 2014 and I see that it was also a problem in 2010. One would think that Buick would have fixed a known problem by now Engine light is back on again. Onstar message said to replace gas cap, which we ordered from the dealership and it did not fix the problem. Each time we fill up the gas tank, the motor turns and turns before the engine finally starts. The popping and grinding noise in the front steering continues but no one can find a reason. We have had the car less than a year and I am very disappointed. We bought a Buick thinking quality would be better than the Hyundia Santa Fe we drove for 8 years but should have kept the Santa Fe.

  • 2009 92,585 Miles
    Check engine light pulses, goes off and then comes on solid. I will replace the fuel cap and see if this solves the problem.Rick