2006 Buick Terraza Check Engine Light Due to Gas Cap Issue

Illumination of the check engine light may be the result of a loose or worn gas cap .

Affected Model Years

This issue affects Buick Terraza model years 2005, 2006, 2007, .

30 people reported this problem

  • 2006 98,286 Miles
    The check engine light stays on and periodically the indicator warning flashes saying check gas cap. I have replaced the gas cap, but nothing changed.

  • 2006 130,000 Miles
    The check engine light came up due to gas cap issue. does anybody know how to correct this issue?

  • 2006 85,000 Miles
    Check engine light illuminates periodically but then corrects itself.

  • 2006 80,000 Miles
    Same issue, engine light is on. It states to "check gas cap." I replaced the gas cap twice and had the dealer to reset the light. Came back on the next day.

  • 2006 96,131 Miles
    gas cap light comes on and the next day chech engine light comes on; ask dealer about this and he stated there could 5 0r 6 things that cause this--to check this $ 90.00 not counting repairs.

  • 2006 0 Miles
    check gas cap is on .changed it with a new one check engine light came on .then gose out again .has a new gas cap on still light is on

  • 2006 80,000 Miles
    Check gas cap warning starting coming on last week. On Sunday the check engine light came on and stayed on. I have tightened, unscrewed and screwed the gas cap. Electrical? Also, has anyone else had problems with the radio? I can turn it on, but there is no sound. If I turn the car off and restart, the radio works again. The display shows the radio/CD player on, but no sound.

  • 2006 75,000 Miles
    Check engine light came on. Replaced gas cap and light went off.